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1017
results.
Updated on
15/11/2026 [08:03:00]
Results 732 to 854 of 1017
Absstract of: EP4830538A1
0001 An anti-inflammatory or aging-suppressing composition, comprising an extracellular vesicle derived from a plant of the family Apiaceae, the family Lamiaceae, the family Theaceae, the family Selaginellaceae, the family Brassicaceae, the family Asteraceae, the family Amaranthaceae, the family Amaryllidaceae, the family Fabaceae, the family Cucurbitaceae, the family Zingiberaceae, the family Polygonaceae, the family Dioscoreaceae, the family Vitaceae, the family Rosaceae, the family Solanaceae, the family Ericaceae, the family Lythraceae, or the family Rutaceae, a mushroom, or a microalga.
Absstract of: US20260327535A1
A system including a combination of a photobioreactor fluidly coupled to a particle filtration system is provided. Also provided are methods of cultivating Coccolithophores in the system, which can be used to capture carbon dioxide in the culture medium into calcium carbonate.
Absstract of: KR20260151767A
본 발명은 클로렐라 속 미세조류로부터 PDRN을 정제하는 방법에 관한 것으로, 구체적으로는 클로렐라 속 미세조류를 조직 분해 용액에 넣고 특정 조건에서 반응 시킨 반응액을 얻은 후, 이를 원심 분리 및 침전 시켜 PDRN을 정제하는 방법에 관한 것이다. 본 발명의 클로렐라 속(Chlorella sp.) 미세조류로부터 PDRN을 정제하는 방법은 경제적으로 대량의 고순도, 고수율의 PDRN을 얻을 수 있으며, 이러한 방법으로 얻어진 PDRN은 피부 상태 개선을 위한 화장료 조성물의 성분으로 널리 적용될 수 있다.
Absstract of: US20260317691A1
0000 Provided is a Dunaliella salina OH214 strain having an improved ability to produce pigments, and in particular lutein. As it is possible to produce carotenoid pigments, specifically xanthophylls, with the Dunaliella salina OH214 strain by consuming less energy, it is possible to efficiently produce pigments at an industrial level. In addition, the Dunaliella salina OH214 strain can be applied as a raw material for foods, health functional foods, and pharmaceuticals, containing pigments. Moreover, the Dunaliella salina OH214 strain is a domestic native microalga in Korea and thus does not cause any GMO issues, it is possible to reduce costs by using seawater as a culture medium in Korea, and the effect of related industrial development can be expected.
Absstract of: WO2026215547A1
The invention relates to the use of an extract of polar lipids, including ceramides, from the biomass of microalgae of the genus Nannochloropsis sp. in the preparation of a formulation for improving the barrier function, firmness and hydration of the skin. The extraction method is carried out using supercritical CO2, and the extract is encapsulated with cyclodextrins.
Absstract of: WO2026215379A1
The invention relates to a photobioreactor (1) for culturing microalgae in a liquid medium, the photobioreactor (1) comprising a vessel (10) intended to receive the culture medium and the microalgae, at least one light source configured to generate light rays having a spectrum intended to promote the growth of the microalgae, at least one light injection element (12), a portion of which extends into the vessel (10) through an opening provided in peripheral walls (11) of the vessel (10), the injection element (12) allowing light rays generated by the at least one light source to propagate into the vessel (10). According to the invention, the photobioreactor (1) comprises at least one extraction device (13) configured to control movement of each injection element (12) into or out of the vessel (10).
Absstract of: WO2026215313A1
The present invention relates to a method for producing a microalgae-based gel or emulsion, the method comprising the steps of: a) contacting a suspension of microalgae with a flocculant, wherein the flocculant is a natural polymer, thereby obtaining flocculated microalgae, b) contacting the flocculated microalgae with a liquid capable of dispersing the flocculant, thereby obtaining a deflocculated dispersion comprising the microalgae and the flocculant, and c) heating and cooling down the deflocculated dispersion, thereby obtaining a microalgae-based gel, or mixing the deflocculated dispersion with an oil, thereby obtaining an microalgae-based emulsion. Furthermore, the invention provides a microalgae-based gel or emulsion obtainable or obtained by the method, and a food or feed product, nutraceutical, food supplement, or cosmetic product comprising the microalgae-based gel or emulsion.
Absstract of: EP4822012A1
0001 The present invention relates to methods for producing an edible product by cultivating edible fungal mycelium in a liquid nutrient medium under submerged fermentation conditions, separating the fermentation liquid from the mycelium biomass, and further processing this liquid into an edible product. Furthermore, the invention relates to an edible product based on fermentation liquid produced by cultivating edible fungal mycelium, preferably together with a microalgae or macroalgae strain. The products that are obtainable by the methods of the invention can be used as a drug or food supplement, e.g. for improving a subject's health, particularly for the prevention or treatment of conditions associated with impaired immune response, epithelial integrity, or for irritated mucosa tissue.
Absstract of: US20260308508A1
0000 A process of producing microalgae oil from wet microalgae biomass includes steps of: bead milling to preliminarily break cell walls; ultrasonic treatment and mixing in a device equipped with ultrasonic emitters to physically disrupt cell walls, combined with enzymatic autolysis by endogenous enzymes; followed by primary and secondary centrifugation to extract oil and valuable compounds; then centrifuging in a conical centrifuge to obtain microalgae oil and a water phase containing valuable water-soluble compounds, and finally concentrating this water phase to yield valuable water-soluble products.
Absstract of: EP4818310A1
0001 The present invention relates to an invention utilizing a microalgae extract as a medium additive for culturing cultured meat. More specifically, the present invention uses an extract of chlorella, which is a kind of microalgae, as a medium additive component, thereby making it possible to effectively induce cross-differentiation from muscle stem cells into adipocytes and provide cultured meat having improved flavor by inducing cells in which muscle fat is present at the same time. In addition, the use of the medium additive of the present invention replaces fetal bovine serum, which is a culture medium component for cultured meat, or is used in combination with fetal bovine serum, thereby enabling a reduction in the use of expensive fetal bovine serum and enhancing the culture effect of cultured meat, thus providing cultured meat having excellent cost effectiveness.
Absstract of: MX2025003579A
The present invention proposes a new closed design and structure for the photobioreactor in the form of an octagonal prism ringed, strong and resistant to strategic conditions provided internally with a flat rectangular geometry culture container, a controlled lighting, agitation and heating system horizontally aligned to take advantage of the internal space of the structure, integrating sensors for monitoring and controlling the variables previously mentioned as well as sensors for monitoring and measuring PH, optical density and oxygen production of the microalgal culture. It is essentially characterised in that it is a closed system designed to operate in strategic conditions. This FBR is relatively inexpensive to build and of simple operation. The space exploration industry is strengthened by this invention since it can favor the future of manned trips through survival for longer periods of astronauts. However, before large-scale cultures of microalgae are possible in missions or spatial bases, small-scale functional FBR are necessary.
Absstract of: MX2026007774A
The invention relates to a novel oral or sublingual composition comprising an extract of the microalga Tetradesmus sp. and/or an extract of the microalga Pavlova sp. The composition is used as a medicine, in particular for reducing intestinal hyperpermeability, and/or reinforcing the intestinal barrier, and/or improving intestinal transit, and/or modulating intestinal microbiota and/or improving gastrointestinal disorders, and/or maintaining and/or increasing immune defences and/or reducing stress. The composition improves well-being, sleep and cognitive abilities, in particular in humans.
Absstract of: WO2026206728A1
An algae-derived bioplastic formulation is disclosed in the form of a viscous, processable dope suitable for extrusion, spinning, casting, coating, or molding, with at least 50 wt. % of non-water solids derived directly or indirectly from macroalgae or microalgae biomass, the dope using an algae-derived polysaccharide matrix that includes alginate.
Absstract of: WO2026201556A1
Methods for processing microalgae, such as seaweed, in particular brown and green seaweed, are described, to extract polysaccharides with a reduced heavy metal content, reduced iodine content, and increased calcium content. We describe a process including the steps of: providing an algal biomass; extracting the algal biomass with at least one solvent; separating the solvent from algal biomass solids to provide an algal liquid and extracted algal biomass solids; adding a source of calcium ions to the algal liquid; clarifying the algal liquid to remove particulate and/or precipitated alginate from the algal liquid, to provide a clarified algal liquid; providing a protease enzyme to the clarified algal liquid; filtering the protease-treated clarified algal liquid to provide a retentate liquid comprising a bioactive polysaccharide extract and a permeate liquid; and filtering the permeate liquid to provide a liquid comprising a bioactive polysaccharide extract enriched in beta-glucan.
Absstract of: WO2026207238A1
The present disclosure provides a system for harvesting microalgae, comprising a cylindrical vessel configured to contain a suspension of microalgae, the cylindrical vessel having a longitudinal axis oriented predominantly perpendicular to gravity. A rotation mechanism is configured to rotate the cylindrical vessel around its longitudinal axis at a speed sufficient to induce either suspension or aggregation or both of the microalgae through fluid dynamics and sedimentation. Algae can be cultivated directly in the vessel. A harvesting mechanism is configured to remove aggregated microalgae from the cylindrical vessel. Different configurations for the harvesting mechanism are proposed and viable for different applications. The system enables efficient microalgae cultivation and harvesting without chemical flocculants by utilizing controlled fluid dynamics to promote natural aggregation, thereby reducing energy consumption and simplifying downstream processing.
Absstract of: US20260297502A1
0000 The present disclosure relates in part to Nannochloropsis microalgae that produce recombinant viruses. Expression cassettes, transgenes and methods for producing recombinant viruses in the Nannochloropsis are also provided. In particular, methods and materials are provided for producing recombinant adeno associated viruses (AAV) in Nannochloropsis. In some embodiments described herein, the Nannochloropsis is Nannochloropsis oceanica.
Absstract of: AU2025226097A1
Provided are gene therapy vectors designated MEV-GTVs, which are MEVs that contain an ITR-containing plasmid (also referred to as a minigene plasmid) that comprises Inverted Terminal Repeats (ITRs), such as viral ITRs, and nucleic acid encoding a product of interest, and optionally regulatory sequences. The ITRs serve to circularize the minigene plasmid. The plasmids do not contain additional viral components, so that resulting DNA is not encapsulated in a viral capsid or envelop and is not replicated by viral genes. The plasmids can be inserted into bacterial plasmids for propagation.
Absstract of: WO2026198577A1
A method is provided that comminutes, by hydrodynamic cavitation, an organic waste material to form a pretreated organic waste, contacts the pretreated organic waste with graphitic nanomaterials to form a nanomaterial-containing waste material, digests, in the presence of methanogenic bacteria and in the substantial absence of cyanobacteria, the nanofiber-containing waste material to form a digestate, separates, by a cross-flow membrane filter, a retentate comprising at least about 75% of the solids, bacteria, and nanomaterials in the digestate, and converting, by pyrolysis, at least most of the retentate into biochar and a pyrogas. Hydrodynamic cavitation is performed for a sufficient time to destroy most cyanobacteria in the organic waste material.
Absstract of: WO2026196594A1
The present invention addresses the problem of providing a technology that improves the carbon dioxide fixation ability of a microalga and facilitates recovery after culturing. The problem is solved by a granular material that contains a microalga, a divalent cation salt of alginic acid, and carboxymethyl cellulose.
Absstract of: US20260272818A1
A combination comprising Haematococcus pluvialis microalgae extract containing polyamines such as spermidine and collagen amino acids and the hyaluronic acid. The invention relates to the field of cosmetics products and uses thereof in cosmetic methods as well as in the preparation of, cosmeceutical or pharmaceutical composition.
Absstract of: US20260275393A1
The present invention relates to methods, compositions, and systems for modulating cellular metabolism in cyanobacteria, particularly F. diplosiphon, through the administration of nanoparticles including zero-valent iron nanoparticles (nZVIs) and titanium dioxide nanoparticles (n-TiO2), β-lactam antibiotics such as ampicillin, or combinations thereof. The disclosed methods enable controlled alteration of adenosine triphosphate (ATP) concentrations, ATP synthase expression, lactate metabolism, photosynthetic efficiency (Fv/Fm), reactive oxygen species (ROS) levels, thylakoid membrane morphology, and monounsaturated fatty acid (MUFA) production. A combination regimen of ampicillin and nZVIs partially rescues ATP levels otherwise depressed by nZVI treatment alone and enhances MUFA production. Administration of n-TiO2 at optimal concentrations enhances ATP synthase expression, photosynthetic efficiency, and growth in a strain-specific manner. Applications include sustainable biofuel synthesis and bioproduct manufacturing.
Absstract of: AU2024427793A1
The present disclosure generally relates to liquid compositions that can be used to treat a water body, for example a dam, river or waste water. In particular, the present disclosure relates to compositions that can be used to control cyanobacteria in a water body. The liquid compositions comprise worm castings, a sugar source and optional other additives/excipients. The present disclosure also relates to methods of treating a water body using the liquid compositions. The present disclosure also relates to processes for preparing the liquid compositions, and also to uses and kits comprising the liquid compositions.
Absstract of: WO2025101437A1
In an aspect, the disclosure provides methods for making LC-PUFA and VLCFAs in a host organism. The LC-PUFA and VLCFAs can be new chemical entities, well-known LC-PUFA, and derivatives of LC-PUFA as well as VLCFAs. The host cells can be microalgae, fungi or other host cells. In a related aspect, the disclosure provides host cells engineered to have biochemical pathways for making LC-PUFA and VLCFAs.
Absstract of: ES3078635A1
The invention consists of a method for determining the purity of microalgae cultures, allowing the determination of the purity of the microalga of interest, as well as the percentage of contamination by other microalgae that may commonly grow alongside it. This method uses only a spectrophotometer to obtain absorbance scans between 350 and 750 nm. These scans are then normalized and analyzed using a 1D convolutional neural network trained to recognize the species of interest. The result of the invention is a quantification of the culture purity of the species of interest, as well as the percentage of other contaminants present. This allows for the rapid characterization of cultures, is low-cost, and is easily applicable in any microalgae production facility, including those for cyanobacteria. (Machine-translation by Google Translate, not legally binding)
Absstract of: US20260265785A1
The present invention deals with a need in the field of sustainability and involves a sustainable alternative for the improvement of air quality, and with an emphasis on the capture of carbon dioxide and carbon monoxide using aquatic organisms, microalgae and cyan bacteria.
Absstract of: US20260265101A1
The present invention discloses a process mode of microalgal cultivation in semi-continuous on wine wastewater with no need to recirculate the microalgal biomass in the reactor, without dilution and sterilisation of the effluent applied as a growth medium. The process was experimentally carried out by semi-continuously applying, without recirculation of the biomass, the cultivation of Chlorella vulgaris on the digestate from the anaerobic co-digestion of winemaking lees and waste activated sludge. The integrated anaerobic digestion-microalgae treatment process is advantageous from a circular economy perspective as it leads to the exploitation of grape processing chain waste, eliminating the economic burden on producers and involving: i) the phyto-depuration of the effluent, ii) the production of bio-methane and iii) the production of biomass containing high value-added by-products (lipids, proteins and starch) that can be used to produce biodiesel, animal feed, nutraceuticals/pharmaceuticals and for producing bioplastics.
Absstract of: AU2026220199A1
Abstract Provided are compositions containing extracellular vesicles from microalgae (MEVs) that are exogenously loaded with bioactive cargo or other cargo of interest, such as for therapeutic, industrial, diagnostic, and cosmetic uses. The MEVs have a variety of applications as therapeutics, including as vaccines, as anti-cancer therapeutics, as diagnostics, and other such uses Abstract
Absstract of: EP4803603A1
La présente invention concerne un photobioréacteur (10) comprenant une cuve de culture (20) adaptée à recevoir une culture de microalgues.La cuve de culture (20) est équipée de moyens d'agitation (40), immergés, comprenant un rotor (41).Ce rotor (41) comprend un moyeu (411) qui est destiné à être raccordé à une alimentation (50) en flux d'air et qui est prolongé par au moins un bras radial tubulaire (412) sur lequel sont répartis des orifices de bullage (4121) pour la libération dudit flux d'air.Et au moins une partie de la longueur dudit au moins un bras radial tubulaire (412) épouse ladite paroi de fond (21) de sorte qu'une première cote en distance (L1) entre l'un au moins desdits orifices de bullage (4121) et ladite paroi de fond (21) est égale ou inférieure à 50 mm, de préférence de 5 mm à 20 mm.
Absstract of: EP4803075A1
0001 Provided are compositions and drug delivery systems containing extracellular vesicles from microalgae (MEVs) that are loaded with bioactive cargo. The MEVs are formulated and administered by a variety of routes of administration and have a variety of applications as therapeutics, including as vaccines, as anti-cancer therapeutics, as therapeutics for psychiatric diseases, disorders, and conditions as diagnostics, and other such uses.
Absstract of: MX2025002029A
The invention relates to a method for preparing a microencapsulated astaxanthin powder product resulting from the production of microalgal biomass, in which micro and nanoemulsions are formed, which by means of a spray drying process, performs micro and nanoencapsulation. In the present invention, the use of astaxanthin obtained by the production of microalgal biomass of Haematococcus pluvialis is proposed. The invention proposes a practical way to protect antioxidants such as astaxanthin from Haematococcus pluvialises microalgae by micro and nano encapsulation by means of spray drying of emulsions, since in this way the bioavailability of its compounds can be improved. The development of stable emulsions involves an appropriate use of its components and mainly of the stabilizer.
Absstract of: MX2026000440U
Disclosed is a cylindrical dual lighting bioreactor designed for the cultivation of microalgae and the capture of carbon dioxide. The device comprises a transparent cylindrical acrylic body with a diameter of 30 cm and a metal feeder base which is mechanically engaged by means of a male-female tab system. The base includes a high-intensity artificial lighting system formed by four vertically oriented foci, allowing uninterrupted photosynthesis during the absence of sunlight. It also includes an aeration system consisting of a pump and a hose with a longitudinal path ascending to the top and descending towards the centre of the inner base to generate bubbling. This structural configuration optimizes light distribution, nutrient availability and gas exchange in the culture medium, solving the limitation of atmospheric carbon capture in conventional low efficiency systems.
Absstract of: WO2026181093A1
Components of oily sludge contaminate the environment, disrupt the endocrine system, and are carcinogenic. Proper and complete treatment of the oily sludge followed by its safe disposal is essential to minimize environmental impact and protect human health. Existing treatment methods for oily sludge include incineration, landfilling, pyrolysis, and supercritical water oxidation; however, these techniques are energy-intensive, costly, and pose higher risks of environmental pollution. The present invention discloses a novel process for oily sludge degradation using a mild hydrothermal-assisted microalgae-based phycoremediation strategy. The method achieves 70– 75% degradation of long-chain aromatic and aliphatic hydrocarbons within 4–6 weeks. The degradation efficiency may further increase when the treatment period exceeds 6 weeks. Compared with conventional energy-intensive technologies for oil sludge treatment, the proposed method is more economical, environmentally sustainable, and suitable for long-term scale-up, with added potential for revenue generation.
Absstract of: CN122648200A
The invention relates to a microalgae cultivation and processing integrated system based on photovoltaic power generation and an operation method. The system comprises a photovoltaic power generation unit, an electric energy distribution unit, a solid heat storage unit, a microalgae culture unit and a microalgae processing unit, the output end of the photovoltaic power generation unit is connected to the input end of the electric energy distribution unit; the output end of the electric energy distribution unit is connected to a power grid, the electric heating input end of the solid heat storage unit and a light supplementing device of the microalgae cultivation unit. The heat energy output end of the solid heat storage unit is connected to a heat supply pipeline of the microalgae culture unit and a drying and dewatering device of the microalgae processing unit; and the controller is used for controlling the power distribution direction of the electric energy distribution unit and the heat release valve of the solid heat storage unit according to the temperature, illumination requirements and photovoltaic power generation power of the microalgae culture unit. According to the system, a'power generation-utilization-storage 'closed loop of photovoltaic power generation is realized, and the comprehensive utilization rate of energy is improved.
Absstract of: CN122648201A
The invention discloses an algae biological rotating disc system and a method for treating aquaculture tail water and harvesting microalgae by using the system. An algae organism rotating disc system comprises a reaction tank body, a rotating disc assembly and a harvesting device, the rotating disc assembly is arranged in the reaction tank body, the rotating disc assembly comprises a rotatable rotating shaft and a rotating disc fixed on the rotating shaft, the rotating shaft is arranged in the reaction tank body in a penetrating mode to enable the rotating disc assembly to rotate relative to the reaction tank body, and the rotating disc comprises a disc piece and a carrier layer. A supporting surface is arranged on the disc, the carrier layer is detachably fixed on the supporting surface, and the surface water contact angle of the carrier layer is gt; the harvesting device comprises a scraping plate or a scraping knife and a collecting container for collecting algae mud. The culture tail water is used as a culture medium for microalgae biomass production, algae mud with the water content of 70%-85% and the microalgae purity larger than or equal to 80% can be harvested and obtained, the algae mud can be used for protein feed, bait or biodiesel raw materials, and sewage purification is synchronously achieved.
Absstract of: CN224692067U
The utility model relates to the related technical field of microalgae culture, in particular to a microalgae photo-biological reaction device which comprises a photo-reaction assembly and a light source assembly, and the photo-reaction assembly is characterized in that a glass cylinder is arranged at the top of a base; the rotating assembly is arranged at the bottom end of the outer side of the glass cylinder; the spiral lamp tube is arranged on the rotating assembly and located on the outer side of the glass cylinder. A cleaning assembly is arranged on the rotating assembly and located between the spiral lamp tubes, and the cleaning assembly comprises a supporting plate arranged on the rotating assembly and located between the spiral lamp tubes; the threaded rod penetrates through the supporting plate and is in threaded connection with the supporting plate; the cleaning sponge is arranged at one end of the threaded rod; the limiting rod is symmetrical to one side of the cleaning sponge, and a through groove matched with the limiting rod is formed in the supporting plate; the spraying head is arranged at the top of the base, the outer side wall of the glass cylinder is conveniently cleaned through the cleaning assembly, the cleaning effect on the outer side wall of the glass cylinder is improved, and the irradiation intensity of the spiral lamp tube on microalgae is guaranteed.
Absstract of: CN224692082U
The utility model relates to the field of microalgae research experiments, in particular to a research experiment device for biocompositions in microalgae, which comprises a placing frame, a cover frame rotatably connected to the placing frame, four color filter glass plates rotatably arranged at the top of the cover frame, four liquid storage cups placed in the placing frame, and a placing rack slidably connected to the liquid storage cups. An air inlet frame is arranged in the middle inside the placing frame, and an air outlet pipe is connected between the air inlet frame and the liquid storage cup. According to the utility model, the fine control capability of the microalgae culture process is obviously optimized through the modular structural design, the unique color filtering system can conveniently switch precise wave bands, the directional activation potential of specific spectrums such as red light on algae metabolism is fully explored, and the integrated silicon carrier placing rack realizes slow release and efficient utilization of nutrient elements, so that the utilization rate of the microalgae culture process is improved. And sudden concentration change interference is avoided.
Absstract of: CN122648259A
The invention relates to the technical field of low-carbon energy, in particular to a method and system for driving microalgae carbon sequestration by utilizing ion exchange to capture carbon dioxide regeneration liquid, and the method comprises the following steps: eluting saturated copper amine complex ion exchange resin loaded with atmospheric carbon dioxide by adopting an alkaline regenerant, and collecting carbon-rich regeneration liquid rich in sodium bicarbonate; measuring the total inorganic carbon content in the carbon-rich regenerated liquid, and confirming that the inorganic carbon form is mainly bicarbonate radical; the associated coexisting salt ions in the carbon-rich regenerated liquid are regulated and controlled, and the strength of the salt-based ions is controlled through directional dilution or proportional matching, so that the inhibition effect of high salinity on microalgae is eliminated; and adding the regulated regenerated liquid as a carbon source into a spirulina photobioreactor, controlling the initial inorganic carbon concentration to be 0.1 mol/L, and culturing spirulina for carbon sequestration. According to the invention, a full chain of a DAC trapping end and a biological utilization end is broken through, the purpose of treating waste with waste is realized, and the purchase cost of carbon source raw materials for microalgae industrialization carbon sequestration is greatly reduced.
Absstract of: WO2026177699A2
The invention relates to a method for producing a micro gas bubble immobilised microalgae culture for the removal of nitrogen and phosphorus in water and wastewater treatment. Said microalgae use nitrogen and phosphorus as nutrients while simultaneously forming biomass that can be used as a raw material for energy and other products. The method that is the subject of the invention enables the microalgal biomass to remain stable at the water surface by being immobilised with micro gas bubbles. In this way, the microalgae are able to receive the light required for photosynthesis and can be easily removed after the treatment process. This innovative approach aims to increase the efficiency of treatment processes while reducing energy consumption and operating costs.
Absstract of: WO2026177421A1
The present invention relates to: a method for preparing a highly functional DNA fragment mixture derived from microorganisms (yeast, microalgae, lactic acid bacteria, and the like); and a functional composition comprising a DNA fragment mixture prepared thereby. Specifically, the present invention relates to the preparation of a DNA fragment mixture having a uniform size within a certain range by using a specific restriction enzyme in microorganisms (yeast, microalgae, lactic acid bacteria, and the like). According to the present invention, a functional composition may be provided, which comprises the DNA fragment mixture as a main ingredient, and exhibits excellent effects in filling an interstitial scaffold, improving skin condition, regenerating tissue, healing wounds, moisturizing, promoting ECM synthesis, inhibiting cellular senescence, forming new blood vessels, alleviating inflammation, relieving pain, treating dermatitis such as atopy, inhibiting hair loss, promoting hair growth, and promoting stem cell activity.
Absstract of: KR20260129263A
본 발명은 미세조류를 이용한 퍼플루오로옥탄산의 제거 방법에 관한 것이다. 본 발명자들은 미세조류를 이용하여 친환경적으로 퍼플루오로옥탄산(perfluorooctanoic acid, PFOA)을 제거하고 오염된 미세조류를 바이오매스로 활용하기 위한 방법을 개발하고자 예의 연구 노력하였다. 본 발명의 S. quadricauda을 이용한 퍼플루오로옥탄산(PFOA)의 제거방법 및 바이오디젤 생산 방법을 이용하는 경우, PFOA를 효과적으로 제거하고 기존 PFOA 제거 방식이 갖던 한계점을 극복할 수 있으며, PFOA 제거 후 오염된 S. quadricauda을 이용하여 바이오디젤 생산 효율을 증진시킬 수 있으므로 산업상 활용 가치가 높다고 판단된다.
Absstract of: WO2026146199A1
The present invention provides a method for obtaining a composition comprising exosome-like vesicles or biomimetic exosomes from microalgae cells comprising a a)homogenizing microalgae cells by high-pressure, and b) eliminating cell debris from the homogenized solution obtained in step a). The invention also relates to a composition obteined by said method and to cosmetical and medical uses thereof.
Absstract of: CN122641675A
The present invention relates to the use of a novel strain of Chlorella vulgaris of the microalgal species for the production of lutein and zeaxanthin, as well as to a method for obtaining same.
Absstract of: CN122627626A
The invention belongs to the technical field of environmental engineering, and particularly relates to a method for cooperatively treating pollutants based on bacteria and algae of coal-based solid waste. The method comprises the following steps: constructing a coal-based solid waste unit and carrying out primary treatment on to-be-treated wastewater; constructing an algal-bacterial symbiotic unit comprising tolerant microalgae and functional bacteria; carrying out biological treatment on the wastewater; arranging a CO2 regulation and control unit to add CO2 into the treatment system so as to regulate the pH value of the system; an internal circulation reflux unit is arranged to sequentially reflux a water body in the algal-bacterial symbiosis unit to the CO2 regulation and control unit and the coal-based solid waste unit, so that a nutritive salt concentration signal and a pH signal are transmitted between the coal-based solid waste unit and the algal-bacterial symbiosis unit; the algal biomass in the algal-bacterial symbiosis unit is regularly harvested. The coal-based solid waste unit is used for preliminary interception; the algal-bacterial symbiosis unit treats organic matters; and a closed-loop regulation and control path is formed by combining a regulation and control system with internal circulation reflux, so that low-energy-consumption and high-efficiency treatment of the coal-based solid waste wastewater and resource utilization of the algae biomass are realized.
Absstract of: CN122629095A
The invention relates to the technical field of gene engineering, and particularly discloses a chlamydomonas reinhardtii SnRK2.7 gene and application thereof in adapting to osmotic stress and maintaining cell survival. The invention discloses a key biological function of the SnRK2.7 gene in maintaining chlamydomonas cell homeostasis for the first time. The gene is knocked out through a CRISPR/Cas9 gene editing technology, and an expression cassette driven by an endogenous promoter is adopted for genetic refilling, so that the SnRK2.7 is proved to positively regulate the osmotic stress tolerance of the cells and maintain the long-term survival of the cells. In addition, it is found for the first time that the SnRK2.7 protein is specifically located in the chlamydomonas, and direct space evidence is provided for the cell function of the chlamydomonas. The discovery not only expands the understanding of a chlamydomonas osmotic stress signal transduction mechanism, but also provides a new gene target and a research tool for the improvement of the adversity adaptability of microalgae, and has important fundamental research value and biotechnology application potential.
Absstract of: CN122623622A
The invention relates to the technical field of zooplankton culture, and discloses a culture method of cyclops zooplankton and blue light source application, and the culture method comprises the following steps: inoculating the cyclops zooplankton in a culture water body and feeding microalgae for culture until the cyclops zooplankton reaches the harvest density; a blue light source is used for irradiating the culture water body in a bright and dark alternating mode in the culture process. According to the method, on the basis of conventional water quality management and microalgae feeding, the blue light source with the specific wavelength is adopted for alternately irradiating the culture water body of the cyclops zooplankton in a bright and dark mode, the internal breeding mechanism of the cyclops is regulated, controlled and optimized through light stimulation of the blue light source with the specific narrow wave band, the population density of the cyclops is effectively improved, and the breeding efficiency of the cyclops is improved. The method has the advantage of remarkably improving the yield and the production efficiency of cyclops zooplankton culture.
Absstract of: CN122629245A
The invention discloses a microalgae culture-photovoltaic greenhouse photo-thermal conversion type heat and power cogeneration system and method, and relates to the field of microalgae culture, a microalgae culture solution is used as a selective spectrum filtering and photo-thermal conversion medium, and a collaborative optimization algorithm based on a dynamic optical model and output prediction is executed according to an optical density value and ambient light intensity, so that the microalgae culture-photovoltaic greenhouse photo-thermal conversion type heat and power cogeneration system is obtained. According to the collaborative optimization algorithm, a joint optimization target is constructed by using the total energy efficiency of the photo-thermal conversion type combined heat and power system and the specific growth rate of microalgae, and the optimal culture solution circulation flow rate and the optimal photovoltaic module inclination angle are solved on line. By precisely regulating and controlling the thickness of the liquid film of the microalgae culture solution and the dip angle of the photovoltaic module, selective utilization of sunlight wave bands is achieved, the requirements of microalgae photosynthetic growth and photovoltaic power generation are considered, and the spectrum utilization efficiency is improved. Through a collaborative optimization algorithm and dynamic weight adjustment, dynamic balance between microalgae growth and system productivity
Absstract of: CN122628770A
The invention discloses an inorganic mineral reinforced microalgae biological crust as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out expanding culture on spirulina to obtain a high-density spirulina liquid; centrifuging and harvesting the high-density spirulina liquid, removing supernate, and resuspending the spirulina precipitate in a BG11 culture medium to obtain spirulina liquid; adding calcium silicate powder and kaolinite powder into the spirulina liquid, and stirring until the materials are uniformly mixed to obtain IM-EMB composite inoculation slurry; the IM-EMB composite inoculation slurry is evenly sprayed on the surface of the heavy metal contaminated soil, and the mass ratio of the IM-EMB composite inoculation slurry to the heavy metal contaminated soil is controlled to be larger than 0.2; and after spraying, supplementing water and preserving moisture, and continuously culturing for not less than 15 days to form the stable inorganic mineral reinforced microalgae biological crust. According to the method, high efficiency and stabilization of heavy metal fixation of the polluted surface soil in the mining area are achieved, and remarkable improvement of the erosion resistance of the surface soil and great improvement of the physical and chemical properties of the soil are promoted.
Absstract of: CN224678037U
The utility model provides a photobioreactor which comprises a buffer container, a reactor pipeline and a driving device, and the buffer container is provided with a buffer container side wall extending along a first direction and a buffer cavity; the reactor pipeline comprises a reactor pipeline main body, a pipeline liquid outlet pipe and a pipeline liquid inlet pipe, the pipeline liquid outlet pipe is provided with a pipeline liquid outlet, the pipeline liquid inlet pipe is provided with a pipeline liquid inlet, and the reactor pipeline main body is spirally wound along the peripheral surface of the side wall of the buffer container and extends along a first direction; the driving device is used for driving liquid in the reactor pipeline to flow from the pipeline liquid inlet to the pipeline liquid outlet and enter the buffer cavity through the pipeline liquid outlet, and driving liquid in the buffer cavity to enter the reactor pipeline through the pipeline liquid inlet. At least part of the reactor pipeline is spirally wound outside the buffer container, so that the optical path can be greatly increased, microalgae can fully absorb light energy for photosynthesis, and the space utilization rate is improved.
Absstract of: CN122628883A
The invention relates to mine ecological restoration liquid as well as a preparation method and application thereof. The preparation method of the mine ecological restoration liquid comprises the following steps: collecting a soil sample and mine gushing water in a to-be-restored mine; inoculating the soil sample in a first algae culture medium, and carrying out enrichment, separation and purification treatment to obtain a microalgae strain; and inoculating the microalgae strain into a culture medium containing the mine gushing water, and culturing to prepare the mine ecological restoration liquid. According to the preparation method, the territory microalgae strains are screened by utilizing the soil environment of the mine to be restored, and the mine gushing water of the territory is used as a culture medium for expanding culture, so that the mine ecological restoration liquid with excellent mine ecological restoration efficiency can be prepared at low cost.
Absstract of: CN122609345A
The invention discloses an air protein production device and method based on microalgae and hydrogen oxidizing bacteria dual-phase coupling, and relates to the technical field of bioengineering and new energy utilization. The device comprises a microalgae photobioreactor, a hydrogen oxidizing bacteria reactor, a gas circulation pipeline system for connecting the two reactors, a water electrolysis hydrogen production system driven by renewable energy abandoned electricity, and a protein collection and separation system. The gas circulation pipeline system is used for conveying an oxygen-enriched gas phase generated by photosynthesis of the microalgae photobioreactor to the hydrogen oxidizing bacteria reactor as an electron acceptor oxygen source of hydrogen oxidizing bacteria; a carbon dioxide-rich gas phase released by respiratory metabolism of the hydrogen oxidizing bacteria reactor flows back to the microalgae photobioreactor to serve as a photosynthesis carbon source, so that gas-phase carbon-oxygen circulating coupling is formed between the two reactors; the water electrolysis hydrogen production system supplies a hydrogen energy source substrate to the hydrogen oxidizing bacteria reactor; and performing harvesting, solid-liquid separation and protein extraction and mixing on culture solutions in the two reactors to obtain a mixed protein product with complementary amino acid compositions. According to the invention, mutual coupling of gas exchange between reactors is uti
Absstract of: CN122609409A
The invention relates to preparation and application of a bioremediation liquid taking active versatile triceps as a core. The invention belongs to the field of agricultural biotechnology and soil remediation. The preparation method comprises the following steps: culturing the variable tricrips to a logarithmic phase to obtain a variable tricrips solution, and carrying out expanding culture propagation after the variable tricrips solution is qualified through microscopic examination to obtain the bioremediation liquid taking the active variable tricrips as the core. The fertilizer is used for improving physical and chemical properties of crop soil and improving soil fertilizer efficiency. The fertilizer is applied at any stage from a seedling emergence stage to a reproductive growth stage of crop growth; the application mode is spraying on the soil surface around the crop root system. The bioremediation liquid is simple in formula, the culture medium is low in cost, the expanding culture period is short, operation is easy and convenient, and rapid large-scale production can be achieved. According to the invention, the bioremediation liquid keeps the continuous breeding and metabolism capability of microalgae; natural nutrients are continuously supplied to crops; the fertilizer can restore soil, activate soil trace elements, improve plant stress resistance, prevent plant diseases and insect pests, promote crop growth and improve agricultural product quality and yield.
Absstract of: WO2026173381A1
The present disclosure relates to a method for producing a biomass, and a biomass having high solid content can be economically produced thereby.
Absstract of: WO2026173382A1
The present disclosure relates to a method for producing biomass, which enables economical production of microalgae biomass having a high solid content and low viscosity.
Absstract of: CN122587877A
The invention discloses a microalgae culture solution and a culture method. According to the microalgae culture solution, microalgae is scenedesmus or chlorella, and the formula of the microalgae culture solution is as follows: 0.4-1.2 g of yeast extract powder and 1 liter of water. The culture method of the microalgae culture solution comprises the following steps: preparing the culture solution according to the formula, and filling the culture solution into a container; inoculating algae species in the growing period according to the proportion of 5-20%, and carrying out aeration/stirring culture; performing closed or semi-open or full-open culture for 3-7 days; and putting the cultured algae seeds into a water body needing to be purified or storing the algae seeds in a shady, cool and ventilated place for later use after filling. The technical scheme solves the technical problems of simplifying the formula components of the culture solution, simplifying the operation, promoting the growth, reducing the cost and reducing the requirements on preparation technicians.
Absstract of: CN122588197A
The invention discloses a dunaliella salina autophagy level evaluation method based on rapamycin induction and monodansyl cadaverine fluorescence detection. The method comprises the following steps: culturing dunaliella salina to a logarithmic phase, adding a sample, and continuously culturing for 12-24 hours; monodansyl cadaverine is added for dyeing; the method comprises the following steps: a) determining the fluorescence intensity by using a fluorospectro photometer; b) observing the form, the number and the subcellular distribution of the autophagosome by using a laser scanning confocal microscope; or c) determining the average fluorescence intensity or the percentage of positive cells in an FL1 channel by using a flow cytometer. And judging the autophagy-induced activity level of the sample according to the difference between the sample group and the control group. A quantitative autophagy detection system suitable for dunaliella salina is systematically established for the first time, the method has the advantages of being easy and convenient to operate, rapid in detection, objective in result, capable of being applied in a high-throughput mode and the like, and a standardized technical tool is provided for microalgae autophagy mechanism research and stress resistance breeding.
Absstract of: CN122587878A
The invention belongs to the technical field of microorganisms, and particularly relates to micro-miscanthus XY7 with a function of synergistically enriching organic selenium, nano-selenium and carotenoid and application of the micro-miscanthus XY7. The microcystis spp XY7 is preserved in the China Center for Type Culture Collection (CCTCC), the preservation number of the microcystis spp XY7 is CCTCC NO: M 20252714, and the preservation date of the microcystis spp XY7 is November 27, 2025. The invention provides a novel high-selenium-resistant microalgae strain microawn XY7, and the tolerance concentration of the novel high-selenium-resistant microalgae strain microawn XY7 to inorganic selenium ions reaches 2000 mg.L <-1 >. According to the method, the micro-miscanthus XY7 can normally grow and breed in the culture medium with high selenium concentration, high-selenium raw materials or selenium-containing wastewater do not need to be diluted, the raw material cost and the pretreatment cost of selenium-rich microalgae culture are greatly reduced, and meanwhile, excellent germplasm resources are provided for bioremediation of high-selenium polluted water and soil.
Absstract of: CN122588203A
The invention discloses a screening method and application of a symbiotic strain of coal gangue decomposing bacteria and salt-tolerant microalgae, and relates to the technical field of environmental microorganism and waste resource utilization. The method comprises the steps of liquid-phase primary screening and solid-phase secondary screening, wherein in the liquid-phase primary screening, the algae density serves as an index, and strains are divided into growth promotion (larger than or equal to 1.55 times), microsymbiosis (smaller than or equal to 5% fluctuation) or algae inhibition (decreasing gt, 10%); and the growth-promoting and micro-symbiotic strains are retained. Coal gangue is used as a substrate for solid-phase secondary screening, blank and single-bacterium/single-algae control are set, and screening standards are as follows: the effective nutrient of a phycomycete co-treatment group is increased remarkably higher than the sum of single groups, the pH change is within +/-0.5, the final value is 6.0-8.0, and the ratio of exopolysaccharides is gt; and 50%. The screened symbiotic system has the functions of growth promotion, improvement and acidification resistance, and can be used for coal gangue improvement and ecological restoration.
Absstract of: CN122586263A
The invention relates to the technical field of water pollution treatment and environmental bioremediation, in particular to a method for removing heavy metals in a water body by using organic acid enhanced microalgae. The method comprises the following steps: inoculating microalgae in a logarithmic phase into a heavy metal polluted water body, then adding organic acid, culturing the water body, and carrying out solid-liquid separation to remove the heavy metals in the water body; the microalgae is scenedesmus quadricauda; and the organic acid is citric acid. According to the method, the synergistic effect of extracellular chelating detoxification of citric acid and intracellular enrichment optimization of microalgae is utilized. The citric acid not only reduces the acute toxicity of free-state metal ions, but also improves the exposure degree of functional groups on the surfaces of cells, so that the surface adsorption quantity and intracellular accumulation quantity of the microalgae to Cu and Zn reach peak values, and the synergistic removal efficiency of heavy metals is greatly improved.
Absstract of: CN122587839A
The invention discloses an environment-friendly microalgae culture pond, and belongs to the technical field of microalgae culture, the environment-friendly microalgae culture pond comprises a pond body, a partition bin is arranged in the middle of the pond body, the bottom of the partition bin is fixedly connected with the inner wall of the pond body, and the side wall of the pond body is provided with a driving mechanism used for driving the interior of the pond body to flow circularly. A light guide mechanism used for guiding light into the bottom layer of water flow in the pool body is arranged in the partition bin, and cleaning mechanisms used for cleaning the output end of the light guide mechanism and driven by a driving mechanism in a linkage mode are arranged on the two sides of the partition bin. An external light source is transmitted to the bottom layer of the pond body through the light guide mechanism via the light collecting cover and the light guide cylinder on the inner wall of the reflecting layer, so that the problem of insufficient illumination of the bottom layer caused by water depth of a traditional microalgae culture pond is effectively solved; and the transmission structure is linked with the cleaning mechanism to periodically and automatically clean the diffuse reflection light-transmitting piece, so that the situation that the light transmittance is affected by dirt attachment is prevented.
Absstract of: CN122581042A
The invention discloses a method for improving soil fertility of traditional Chinese medicinal materials by using a nitrogen-fixing cyanobacteria biological membrane. The method sequentially comprises six steps of blue-green algae culture, biological membrane matrix construction, biological membrane formation, biological membrane particle preparation, soil application and ecological regulation. The method comprises the following steps: screening blue-green algae strains with high nitrogen fixation activity, such as nostoc and anabaena, performing precise culture to obtain a high-activity culture solution, compounding porous minerals, an organic carbon source and a biopolymer adhesive into a biological membrane matrix, inoculating the blue-green algae culture solution, and regulating and controlling the environment to form a three-dimensional reticular blue-green algae biological membrane. The particles are applied to the 0-5 cm surface layer of the traditional Chinese medicine soil according to the application amount of 200-500 kg/hm < 2 >, so that the blue-green algae forms a biological crust structure. The soil structure is improved through cyanobacteria photosynthetic nitrogen fixation and exopolysaccharides, and a synergistic ecological system is formed with rhizosphere microorganisms.
Absstract of: CN224646950U
The utility model relates to the technical field of microalgae culture biology, and discloses a microalgae in-situ reaction culture device which comprises a culture box body, a culture platform which is driven by a supporting shaft to rotate is arranged in the culture box body, and a clamping jig is arranged on the culture platform; a liquid supply end cover internally provided with a liquid supply cavity communicated with the liquid conveying pipe is fixed to the top of the incubator body, the upper portion of the supporting shaft is rotationally connected with the liquid supply end cover, a liquid conveying channel communicated with the liquid supply cavity is formed in the supporting shaft, and liquid distribution pipes which are communicated with the liquid conveying channel and correspond to the clamping jigs one to one are arranged on the outer side of the supporting shaft; according to the device, the uniformity of a culture environment is improved through rotation of the culture container, continuous liquid supply in a rotating state is realized, in-situ reaction can be completed without shutdown and box opening, environmental fluctuation and pollution risks are reduced, the reliability and repeatability of an experimental result are remarkably improved, and the problems of poor environmental uniformity and high experimental efficiency in the prior art are solved. And continuous liquid supply cannot be realized in a continuous rotating state of the culture container.
Absstract of: CN224646926U
The utility model relates to a container integrated type microalgae culture device which comprises a transparent continuous bent U-shaped pipeline, a container integrated type microalgae culture device and a container integrated type microalgae culture device, the bracket is used for fixing the U-shaped pipeline on the outer surface of the container; the dark reaction box is arranged in the container and connected with the pneumatic diaphragm pump through a pipeline, the water inlet is connected with the dark reaction box through the pneumatic diaphragm pump, and the water outlet is directly communicated with the dark reaction box to form a closed circulation system. The microalgae culture device is modular equipment which is high in integration level, low in operation cost and capable of achieving efficient production, and synergistic interaction of wastewater treatment and resource utilization can be achieved.
Absstract of: CN122563852A
The invention discloses application of polygonatum sibiricum leach liquor in promotion of growth of chlorella, and belongs to the technical field of chlorella cultivation. According to the method, the rhizoma polygonati extract and the chlorella culture solution are mixed and then cultured, the growth of the chlorella can be effectively promoted, a natural plant source extract is adopted to replace a traditional chemical additive or an organic carbon source, the problems of poor environmental compatibility and high production cost caused by chemical substances are avoided, and the method is suitable for industrial production. And a green and low-cost growth promoting mode is provided for large-scale culture of chlorella. Besides, the algae biomass obtained by culturing the chlorella containing the polygonatum sibiricum extract can be used as a natural delivery carrier of active ingredients of polygonatum sibiricum and can be used for producing functional foods or cosmetics, so that the synergistic utilization of microalgae culture and traditional Chinese medicine resource development is realized.
Absstract of: CN122563594A
The invention relates to a biochar-biogas slurry-microalgae composite material based on nano CO2 bubble regulation and control and application of the biochar-biogas slurry-microalgae composite material in promotion of soil biological crust. According to the method, accurate pH regulation and control and CO2 enrichment are realized through two times of nano CO2 bubble injection: the first time is used for acidification and carbon enrichment of a biochar-biogas slurry mixed system; and for the second time, activation and pH fine adjustment of the material before spraying are carried out, so that the pH of the system is reduced to be below 7, and the microalgae activity and EPS secretion capacity are enhanced. Through a quadruple synergistic mechanism of nano CO2 bubble regulation and control, biochar skeleton support, biogas slurry nutrition supply and microalgae EPS bonding, rapid surface skinning, wind erosion resistance enhancement, evaporation inhibition and carbon sequestration increase in the cold and arid region are realized.
Absstract of: CN122556267A
The invention discloses an artificial cyanobacteria crust constructed by utilizing pullulan and EPS-producing bacteria and a preparation method of the artificial cyanobacteria crust, and belongs to the technical field of ecological restoration and desertification control. The method comprises the following steps: preparing a mixed soil algae culture solution and a high-yield EPS bacterial suspension, and jointly inoculating a pullulan solution, the algae culture solution and the bacterial suspension on the surface of soil for culturing to form the artificial cyanobacteria crust. The pulullan adopted by the invention has good film-forming and binding properties, and can enhance the binding force among soil particles in a short time; the EPS-producing bacteria can continuously secrete exopolysaccharides, a three-dimensional network structure is formed among soil particles and on the surfaces of microorganisms, and the mechanical strength, wind erosion resistance and disturbance resistance of the crust are remarkably improved; the extracellular polysaccharide secreted by the EPS-producing bacteria has excellent water retention performance, and the survival rate and the ecological function of the whole biological crust system are improved; the artificial cyanobacteria crust is rapidly formed by regulating the concentration of pullulan and the variety and proportion of EPS-producing bacteria and algae.
Absstract of: CN122562149A
The invention discloses a preparation method of magnetic aldehyde cationic starch and a method for collecting microalgae through flocculation under the assistance of an external magnetic field, and relates to a preparation method of a flocculant and a method for collecting microalgae. The invention aims to solve the technical problems that the separation speed is slow when the cationic starch is used for flocculating microalgae, floc is easy to break under high disturbance, and the economical efficiency is poor due to the fact that the required dosage is too high in the prior art. The magnetic aldehyde group cationic starch is obtained by carrying out cationization modification on natural starch and then introducing an aldehyde group functional group and FeOmagnetic nanoparticles. The flocculating agent is added into a microalgae-containing water body, and rapid mixing and sedimentation treatment are performed under the action of an external electric field, so that rapid aggregation and efficient solid-liquid separation of microalgae cells can be realized, and the microalgae recovery rate of 85.1% can be achieved within 5 minutes. The method can be used in the fields of water treatment and microalgae resource utilization.
Absstract of: CN122563737A
The invention provides a staggered cultivation method of spirulina and haematococcus pluvialis, which comprises the following steps: in four seasons of one year, two microalgae such as spirulina and haematococcus pluvialis are cultivated in three types of devices such as a greenhouse raceway pond, a flat plate type photobioreactor and a pipeline type photobioreactor in staggered adverse periods; spirulina is cultivated in a greenhouse raceway pond and stored in a plastic barrel, and full-period cultivation of the spirulina in the greenhouse raceway pond can be achieved. According to the staggered-time cultivation method for haematococcus pluvialis flat plate type photobioreactor green nutrition cell cultivation, pipeline type photobioreactor erythrocyte transformation cultivation, greenhouse raceway pond green nutrition cell cultivation and fixed cell cross-season preservation, four-season continuous cultivation of haematococcus pluvialis can be achieved. According to the method, light, temperature, time and space resources are fully utilized, the productivity of the two microalgae is reasonably adjusted, and time-staggered efficient cultivation is achieved.
Absstract of: CN122563851A
The invention relates to a microalgae carbon sequestration technology, and aims to provide a method for improving the protein content and calcium and magnesium ion absorption capacity of microalgae through high-salt domestication. Comprising the following steps: inoculating chlorella cells into a basic culture medium, and then carrying out high-salt gradient domestication under the condition of introducing CO2-containing flue gas; the content of calcium and magnesium ions in the culture system is synchronously increased in each domestication stage, and the same concentration is increased each time until the final concentrations of the calcium and magnesium ions in the final culture system are 5g/L respectively; screening the chlorella communities subjected to high-salt gradient domestication to obtain algae strains with the highest protein content and good growth; and carrying out transfer culture on the screened algal strains, and verifying the genetic stability of high protein content and high calcium and magnesium ion absorption performance. The carbon sequestration chlorella with significantly improved protein content can be obtained only through one-time domestication and screening, and the nutritional value and economical efficiency of the frond biomass as feed, food and biological product raw materials are improved.
Absstract of: CN122563695A
The invention discloses a microalgae self-adaptive culture system and a culture regulation and control method, the culture system comprises a reactor assembly, a photoelectric coupling assembly and an intelligent control assembly, the reactor assembly is provided with a containing cavity for containing a microalgae culture solution; the photoelectric coupling assembly is coaxially sleeved and fixed outside the reactor assembly, the photoelectric coupling assembly comprises a light emitting unit and a spectrum acquisition unit, and the light emitting unit and the spectrum acquisition unit are located on the inner ring surface of the photoelectric coupling assembly and are arranged in a staggered manner in the circumferential direction; the light emitting surface of the light emitting unit and the receiving surface of the spectrum acquisition unit face the accommodating cavity; the intelligent control assembly is in signal connection with the light-emitting unit and the spectrum acquisition unit. The technical problems that in existing high-density microalgae culture, light inhibition early warning lags behind, and the light energy utilization rate is low are solved.
Absstract of: CN122562187A
The invention relates to the technical field of sewage treatment, and discloses a microalgae synergistic pollution reduction and carbon reduction treatment method for dairy farm sewage. The method comprises the following steps: firstly, feeding dairy farm sewage subjected to pretreatment and anaerobic fermentation into a microalgae photosynthetic reaction unit, and identifying an inflow water quality fluctuation event in combination with inflow water quality data and dairy farm production period information; profile data of illumination, turbidity, dissolved oxygen, pH and temperature are collected in the water depth direction, and the position and thickness of an effective photosynthetic water layer are determined; the liquid level depth and the circulating stirring frequency are adjusted according to the change of the effective photosynthetic water layer, and the carbon dioxide injection flow and the hydraulic retention time are adjusted in a linkage mode; recording water quality, energy consumption, equipment operation and carbon dioxide injection states in the effluent discharge and microalgae harvesting process, and executing degraded operation or parameter backspacing according to abnormal grades; according to the invention, the effluent stability, the carbon dioxide utilization rate and the pollution reduction and carbon reduction operation reliability of dairy farm sewage treatment can be improved.
Absstract of: CN122556421A
The invention relates to a fishery ecological breeding system and a breeding method. The system comprises a prawn breeding pond, a settling pond, a multi-stage biological tail water purification device, a microfilter, a medium-pressure ultraviolet sterilizer, an algae breeding pond, a shellfish three-dimensional soilless breeding device and a tail water reservoir which are sequentially connected through a circulating pipeline. The prawn culture tail water is subjected to solid-liquid separation through a sedimentation tank and then enters a multi-stage biological tail water purification device, and nitrogen and phosphorus are synergistically removed by utilizing microalgae and bacteria; purified water is filtered and disinfected through a microfilter and a medium-pressure ultraviolet sterilizer and then enters a microalgae culture pond, and tail water serves as a culture medium to produce high-concentration algae liquid such as cyclotella and isochrysis galbana; algae liquid is used for three-dimensional culture of shellfish for filter feeding, excrement and residual feed are discharged to the sedimentation tank, and supernatant effluent flows back to the prawn culture pond to form a closed loop. According to the method, ecological coupling of shrimps, algae and shellfish can be achieved, near-zero emission of breeding tail water is achieved, shellfish products are free of mud smell, the comprehensive cost is greatly reduced, and the method is particularly suitable for factor
Absstract of: US20260234544A1
This microorganism belongs to the genus Rhodococcus, Xanthobacter, Ancylobacter, Shewanella, or Aeromonas. Said microorganism may be Rhodococcus cerastii belonging to the genus Rhodococcus, Xanthobacter flavus belonging to the genus Xanthobacter, or Ancylobacter rudongensis belonging to the genus Ancylobacter. Said microorganism may be for promoting the growth of cyanobacterium, green algae, glaucophyte algae, or Euglena algae. Said microorganism may be for promoting the growth of organisms belonging to the phylum Cyanobacteria, Ochrophyta, Euglena, Cryptophyta, Haptophyta, Cercozoa, Glaucophyta, Rhodophyta, Chlorophyta, or Streptophyta.
Absstract of: EP4790131A1
A process for producing calcium hydroxide, comprising:reacting calcium carbonate with an acid in an aqueous solution at a temperature of 10-50°C to produce a calcium ion solution and carbon dioxide,separating the carbon dioxide from the calcium ion solution,treating the calcium ion solution to form calcium hydroxide,directing the separated carbon dioxide to a photobioreactor containing microalgae, andgrowing the microalgae in the photobioreactor using the carbon dioxide through photosynthesis.
Absstract of: EP4790127A1
A system and method are provided for processing an industrial effluent and cultivating microalgae. The system comprises a primary tank, a screening unit with a motor-driven cleaning mechanism, a flocculation tank supplied with a chemical flocculant, a sand filter, an acidification unit with pH control, a solid-liquid separation unit, an anaerobic digestion unit, and a microalga cultivation unit. The effluent is screened, flocculated, filtered, acidified to a pH from 4.2 to 5.2, preferably 4.45 to 4.75, and subjected to solid-liquid separation to remove precipitated proteins and destabilised colloidal material, thereby producing a clarified effluent. The clarified effluent is anaerobically digested at a defined organic loading rate to generate biogas and a liquid digestate. At least a portion of the digestate and/or carbon dioxide derived from the biogas is used for microalga cultivation. The system enables stable anaerobic digestion without membrane-based pretreatment and provides a conditioned stream suitable for downstream microalga growth.
Absstract of: CN122542637A
The invention relates to the technical field of biology, and particularly discloses microalgae starch rich in resistant starch and a preparation method thereof.The preparation method comprises the steps that under the nitrate nitrogen or nitrogen deficiency (-N) condition, pure air or CO2-containing air is introduced into microalgae, bicarbonate, glycollate and glycerin are supplemented to serve as carbon sources, culture is conducted under the continuous illumination condition, and the microalgae starch rich in resistant starch is obtained; and enabling the microalgae cells to grow and accumulate resistant starch. The yield and the content of the microalgae resistant starch prepared by the method are obviously improved compared with those under unregulated conditions. Compared with unregulated and uncontrolled microalgae resistant starch, the content of the microalgae resistant starch is increased by 49-169%; the yield of the microalgae resistant starch is increased by 49-278% compared with that of the unregulated microalgae resistant starch; the content (% TS) of the microalgae resistant starch in the total starch is increased by 32-134% compared with the content (% TS) of the microalgae resistant starch without regulation.
Absstract of: CN122542385A
The invention belongs to the technical field of gene engineering and biology, and particularly relates to a Myrmecia incisa MLDP gene knockout mutant strain as well as a construction method and application thereof. The MLDP gene knockout mutant strain (delta MiMLDP) of Myrmecia incisa is obtained by performing targeted knockout on the MLDP gene of Myrmecia incisa through a CRISPR/Cas9 gene editing technology. Compared with a wild type, the obtained MLDP gene knockout mutant strain has a remarkably changed grease accumulation phenotype, can be used for grease production and biofuel preparation, can also be used for feed preparation, and can also be used as an additive or a carrier for preparation of food, cosmetics and medicines. Targeted knockout of the MLDP gene is achieved in Myrmecia incisa for the first time, a genetic material is provided for studying the function of MLDP in microalgae grease metabolism, and a new germplasm is also provided for creating microalgae with novel grease composition and lipid droplet structures.
Absstract of: CN122542351A
The invention discloses a laminated automatic high-photosynthetic-efficiency microalgae reactor and application thereof, and relates to the technical field of microalgae reactors, the laminated automatic high-photosynthetic-efficiency microalgae reactor comprises a reactor support, a plurality of culture units are arranged on the reactor support, each culture unit comprises an illumination unit and a solid attachment medium, the solid attachment medium is obliquely arranged on the reactor bracket through the solid attachment medium holder, a nutrient solution supply system is arranged at one end of the solid attachment medium, and a solid attachment medium winding device is arranged at one end of the solid attachment medium. A plurality of culture units are arranged in a laminated manner through the reactor bracket, so that the yield per unit area is higher; the illumination unit improves the light utilization rate to a certain extent; the flexible solid attachment medium is used as a microalgae attachment site, and is curled and collected by the solid attachment medium winding device, so that the whole reactor production process has a relatively high automation level.
Absstract of: CN122542368A
The invention discloses an automatic high-photosynthetic-efficiency microalgae reactor and application thereof, and relates to the technical field of microalgae reactors, the automatic high-photosynthetic-efficiency microalgae reactor comprises a reactor support assembly, a plurality of conveyor belt gear shafts are rotatably arranged at the upper end and the lower end of the reactor support assembly, and the conveyor belt gear shafts are connected with a solid attachment medium through a transmission assembly; a nutrient solution supply assembly is arranged at a gear shaft of a conveying belt arranged at the upper end, a transmission assembly drives a solid attachment medium to sequentially flow through an inoculation area, an illumination culture area, a microalgae harvesting area, a cleaning and disinfecting area and an inoculation area, and a closed circulation loop is formed, so that automatic continuous production is realized; the adjacent conveyor belt gear shafts which are arranged in a vertically staggered mode enable solid attachment media to form inclined sections between the conveyor belt gear shafts, the multiple inclined sections are combined to enable the overall path of the media to be in a W-shaped winding shape, the microalgae attachment area on the unit occupied area is increased while microalgae attachment is guaranteed, and the yield is increased.
Absstract of: CN122542608A
The invention discloses a method for efficiently synthesizing human selenoprotein P from microalgae, and belongs to the field of bioengineering. Aiming at the problem that human selenoprotein P contains 10 selenocysteines and the translation readthrough efficiency is low due to multiple UGA termination codons in heterologous expression, the method comprises the following steps: performing codon optimization on a nucleotide sequence for coding the human selenoprotein P according to the codon preference of chlamydomonas reinhardtii; the method comprises the following steps: constructing a multi-copy expression vector containing two tandem expression cassettes, wherein each expression cassette is composed of an HSP70A-RBCS2 strong promoter, an optimized target gene and a terminator; transforming chlamydomonas reinhardtii, and screening a recombinant algal strain; culturing, adding a selenium source to induce expression, collecting algae strains, and purifying. Complete sequence expression of the human selenoprotein P containing 10 selenocysteine is realized in the chlamydomonas reinhardtii for the first time, the obtained protein has correct Sec doping and glycosylation modification, and the chlamydomonas reinhardtii is low in culture cost, free of endotoxin and suitable for production of food-grade or pharmaceutical-grade recombinant protein.
Absstract of: CN122542346A
The invention discloses a device and a method for clean ecological cultivation of haematococcus pluvialis by an outdoor photobioreactor, and relates to the technical field of artificial cultivation of microalgae, and the method comprises the following steps: forming an annular raceway pond, creating an outdoor dust-free clean cultivation environment, arranging a partition plate, placing bundled waste glass tubes, and arranging a screen; a solid arc-shaped platform is arranged, alternanthera philoxeroides is planted, oocystis bogei is introduced for cultivation, and the oocystis bogei and zooplankton in the oocystis bogei form a food chain system; planktonic animals and plants and alternanthera philoxeroides in the water body are fully utilized by the crayfish, and waste generated by the crayfish enters the water body of the raceway pond to be recycled through material and energy circulation. The clean and ecological cultivation method is utilized, raised dust is reduced, the local light and temperature environment is improved, the influence of periodic breeding of various animals and plants on the land on microalgae production is reduced, large-scale efficient haematococcus pluvialis cultivation and crayfish cultivation integrated production is achieved, and the space utilization rate is increased.
Absstract of: CN122542345A
The invention provides a dewatering, drying, detoxification and deodorization device and method for bloom-forming cyanobacteria biomass after salvage, the device comprises a rotating disc type photodegradation reactor, the rotating disc type photodegradation reactor adopts a double-layer structure, the upper layer of the double-layer structure is a photocatalytic degradation layer, and the lower layer is a biomass drying and dewatering layer; wherein a self-adaptive light degradation system is correspondingly arranged on the photocatalytic degradation layer, and a green electricity driven air drying system is arranged in the biomass drying and dewatering layer; the self-adaptive light degradation system carries out photocatalytic toxin degradation through switching of ultraviolet light and ultraviolet light in natural light, and the green electricity drives the air drying system to carry out drying treatment; the photocatalytic degradation layer is further provided with a microorganism cooperative treatment unit, and water in the photocatalytic degradation layer is detoxified, deodorized and cleaned through microorganisms in the microorganism cooperative treatment unit.
Absstract of: CN122542580A
The invention belongs to the technical field of environmental microorganisms, and particularly relates to a method for synergistically degrading cyanobacteria algal toxin based on recombinant lactococcus lactis. Recombinant plasmids pNZ8148-MlrA and pAR1801-endolysin are constructed, the two plasmids are sequentially transformed into lactococcus lactis NZ9000 to obtain a double-plasmid engineering bacterium, cyanobacteria cells are cracked by endolysin through time sequence induction to release intracellular microcystic toxins, and the MlrA efficiently degrades toxins immediately. After the double-plasmid time sequence induction fermentation liquor is used for treatment for 12 hours, the algal toxin degradation rate reaches 99% or above, and the algal toxin degradation rate is obviously superior to that of single use of MlrA or endolysin and double-bacterium mixed treatment. The method disclosed by the invention realizes closed-loop treatment of first accumulating enzyme, then splitting decomposition release and then degrading toxin, has the advantages of high degradation efficiency, simplicity and convenience in operation, environment friendliness and the like, and has a wide application prospect in the field of cyanobacterial bloom treatment.
Absstract of: CN122541024A
The invention provides a bacteria-algae symbiotic artificial wetland system and an operation method, and relates to the field of rainwater treatment and resource utilization. The algal-bacterial symbiotic artificial wetland system comprises a wetland bed body, a water inlet device, a water drainage device and a control unit. According to the system, an up-down partition structure and dry-wet alternate operation are adopted, the impact load resistance is effectively improved, and the energy consumption of the system is remarkably reduced through natural drying, emptying and reoxygenation. The algal-bacterial microspheres in the light-transmitting area avoid flora loss, in-situ oxygen production of microalgae supports symbiotic bacteria to realize high-efficiency denitrification, and low-carbon and stable purification of multi-element pollutants in complex runoff is finally realized by combining the synergistic interception effect of the filler at the bottom layer of the non-light-transmitting area.
Absstract of: CN122542418A
The invention discloses a method for preparing an agricultural microbial agent by utilizing biogas co-production culture phycomycetes, and belongs to the technical field of ecological agriculture and waste recycling, biogas slurry and biogas of livestock and poultry manure biogas engineering are used as core raw materials, the pretreated biogas slurry is used as a basic culture medium, and the volume addition ratio is 10%-20%; inoculating stain-resistant microalgae and functional bacillus, wherein the initial biomass ratio is (3: 1)-(5: 1); introducing the desulfurized biogas into a culture system, and carrying out closed culture for 7-15 days under the conditions that the temperature is 22-28 DEG C, the illumination is 5000-8000 lx and the dissolved oxygen is 3-5 mg/L; after harvesting and concentrating, forming to obtain a powder or liquid agricultural microbial agent. According to the invention, the resource utilization rate of biogas is 100%, the culture cost is reduced by 60%, the activity of the microbial inoculum is improved by 30%, and the finished product meets the GB 20287-2006 standard.
Absstract of: CN122541008A
The invention discloses a method for rapidly degrading thiamethoxam-polluted domestic sewage by using a microalgae fuel cell, and relates to the technical fields of sewage treatment, novel pollutant biodegradation, microalgae resource utilization and microbial fuel cells. According to the method, a double-chamber microalgae fuel cell comprising an anode anaerobic power generation system and a cathode scenedesmus photosynthetic system is constructed, and an external circuit is kept closed under an illumination condition, so that electrons generated by an anode are transmitted to a cathode through the external circuit, and protons are migrated to a cathode chamber through a proton exchange membrane; meanwhile, photosynthetic oxygen production of the cathode scenedesmus is used as an electron acceptor to complete an oxygen reduction reaction. In the coupled system, scenedesmus grows, metabolizes and converts thiamethoxam by utilizing nutrient substances such as nitrogen and phosphorus in sewage, so that the biotransformation efficiency of thiamethoxam is accelerated under the driving of a closed external circuit, and the synergistic treatment effects of nitrogen and phosphorus removal, microalgae biomass accumulation and continuous bioelectricity output are synchronously realized.
Absstract of: CN122515463A
The invention discloses a children composite nerve nutrition composition based on intestinal brain axis regulation and a low-temperature preparation process thereof, and relates to the technical field of special dietary nutrition. The composition is prepared from the following components in parts by mass: 38 to 52 parts of specific animal bifidobacterium subsp. Lactis BB-C04 bacterial powder, 22 to 35 parts of lactobacillus plantarum LP-N07 bacterial powder, 45 to 68 parts of isomaltooligosacharide IMO-900 type, 25 to 40 parts of palatinitol, 8 to 15 parts of high-purity yolk source phosphatidylserine PS-50 type and 12 to 22 parts of microalgae source docosahexaenoic acid grease microcapsule powder DHA-35 type. 6 to 11 parts of N-acetylneuraminic acid purified powder, 5 to 9 parts of L-alpha-glycerophosphorylcholine type GPC-50, 3 to 7 parts of natural source citicoline sodium salt and 0.8 to 1.6 parts of anti-caking agent silicon dioxide micro powder. The traditional Chinese medicine composition can significantly improve the symptoms of inattention, low learning and memory ability and gastrointestinal dysfunction coexistence of children of 3-12 years old.
Absstract of: CN122528107A
The invention relates to a shellfish culture net carbon flux monitoring method, a shellfish culture net carbon flux monitoring system and a medium. The method comprises the following steps: constructing a shellfish-microalgae co-culture unit and a microalgae contrast unit; synchronously and continuously acquiring heart rate signals of at least two shellfishes in the shellfish-microalgae co-culture unit to obtain effective heart rate data; hydrochemical parameters of the shellfish-microalgae co-culture unit and the microalgae control unit are obtained respectively; calculating to obtain net contribution data of the shellfish to the hydrochemical parameters according to the hydrochemical parameters; based on the effective heart rate data, calculating to obtain a heart rate cumulative average value; and calculating heart rate data collected in real time to obtain a real-time heart rate cumulative average value, substituting the real-time heart rate cumulative average value into the heart rate-hydrochemistry quantitative regression model, performing inversion to obtain a net contribution estimated value of shellfish to hydrochemistry parameters, and calculating to obtain the net carbon flux of a culture unit based on the total alkalinity net variation. According to the method, the shellfish physiological metabolism indexes and the water carbon chemical parameters are accurately associated, and the scientificity, the accuracy and the repeatability of the net carbon flux calculatio
Absstract of: CN122521404A
The invention discloses a method for treating waste pit sealing mud of Maotai-flavor liquor based on a hot acid coupling microalgae process, which comprises the following steps: air-drying the waste pit sealing mud, crushing, removing impurities, preparing into a suspension, introducing phosphoric acid, carrying out hot acid treatment under a heating condition, destroying a colloid structure, and promoting degradation-resistant macromolecular organic matters to be converted into soluble micromolecular organic matters; and transferring with nitrogen into the hydrolysate. After solid-liquid separation, a solid phase is recycled, supernatant rich in organic matter, free ammonia nitrogen and phosphorus is collected, the obtained supernatant makes up for phosphorus deficiency and shortage due to introduction of phosphoric acid, proper C: N: P balance can be achieved after simple dilution and adjustment by adding water, and the supernatant serves as the only culture medium to inoculate microalgae for culture. According to the method, deep coupling of pit sealing mud solid-phase repair and liquid-phase high-added-value microalgae biomass synthesis is achieved, and the method has the remarkable advantages that the process is compact, cost is reduced, efficiency is improved and the like.
Absstract of: US20260226398A1
The invention relates to an algae biomass having particular values within a defined colour space. The invention further relates to a strain of Chlorella microalgae having a genetic mutation in genes encoding for specific subunits of magnesium chelatase, preferably magnesium chelatase subunit, and also relates to a method of producing a strain of Chlorella microalgae having such mutations.
Absstract of: US20260223795A1
0000 Microalgae are grown in a biofilm on carriers. In some examples, the carriers are surfaces with a small angle to the vertical. Optionally, the carriers may have surfaces on both sides of a vertical plane (e.g., an inverted V) or surrounding a vertical axis (e.g., a cone). In some examples, the carriers include two or more sheets of a porous material such as a fabric, screen or mesh. In some examples a surface of the carrier is flexible. In some examples, the carriers provide a specific surface area for algae growth greater than 7 m<2>/m<2>.
Absstract of: WO2026163125A1
The present invention relates to a symbiotic therapeutic technique based on a genetically modified eukaryotic microalga (51), preferably photosynthetic, such as for example Chlamydomonas reinhardtii, in which an expression cassette (10) codifying a biologically active peptide and/or protein comprises a secretion coding module (5) of a therapeutic agent to allow the biologically active peptide/protein to be released so that it can cross the cell wall of the microalga (51), to be secreted outside of it and enter directly into the circulation in a subject (53) in which said genetically modified eukaryotic microalga (51) has been subcutaneously or intradermally injected. The microalga can be of a type that naturally: a) lacks flagella; or b) has flagella, in which case a prior genetic modification prevents the formation or inactivates the flagella, so that the microalga remains immobilised at a subject injection site (53). The expression cassette (10) can further comprise at least one further coding module selected from: a homing module (6), for targeting the peptide/protein to a predetermined tissue and/or cell population of the subject (53); a penetrating module (7) for inducing internalisation of the protein within a cell of said subject (53) through the cell membrane or by induced endocytosis; a protection module (9). The invention also relates to a subcutaneously or intradermally injectable composition containing said microalgae, and to a kit for preparing said composition.
Absstract of: EP4785810A1
0001 An object of the present invention is to provide a formulation effective for maintaining or increasing hair fibrous structural proteins. Provided are a composition for maintaining or increasing fibrous structural proteins, a composition for maintaining or increasing skin elasticity, a composition for improving hair quality, and a composition for promoting production of collagen, elastin, or hyaluronic acid, which contain a culture supernatant and/or extracellular vesicles of a microalga.
Absstract of: CN122503201A
The invention discloses a gas retention type partitioned carbon supplementing system of a microalgae raceway pond and a using method, and belongs to the technical field of microalgae culture.The gas retention type partitioned carbon supplementing system comprises a raceway pond module and a carbon supplementing module, the carbon supplementing module is arranged in an algae liquid culture flow channel and connected with a gas buffer tank arranged outside the raceway pond module, the gas buffer tank is connected with a circulating gas pump, and the circulating gas pump is connected with the carbon supplementing module. And the circulating air pump is connected with a carbon-containing air source tank. The carbon supplementing module makes full contact with flowing algae liquid, unabsorbed tail gas is recycled, the utilization rate of carbon dioxide is increased, tail gas dissipation and pH fluctuation are reduced, and the carbon supplementing module is suitable for open or semi-open microalgae raceway ponds. The method is suitable for spirulina, chlorella, scenedesmus, dunaliella salina, haematococcus pluvialis, nannochloropsis oculata and other microalgae suitable for being cultured in an open or semi-open raceway pond; the method is especially suitable for large-scale microalgae culture and carbon dioxide emission reduction engineering taking pure carbon dioxide, air and carbon dioxide mixed gas, fermentation tail gas, industrial tail gas or coal-fired flue gas as a carbon s
Absstract of: CN122503372A
The invention discloses a strip-shaped basalt fiber reinforced alginate-based microalgae immobilization material and a preparation method thereof, and belongs to the technical field of environmental functional materials and algae biology. The preparation method comprises the following steps: cleaning basalt fibers, immersing the basalt fibers in a surface modifier, and drying the basalt fibers at a high temperature to form an active hydroxyl surface; immersing the modified basalt fiber in the algal glue solution, then transferring the algal glue solution into a calcium chloride aqueous solution for crosslinking, and repeating the steps until the thickness of a coating layer reaches a preset value; the algal glue solution is a mixed aqueous solution of sodium alginate and microalgae. The material disclosed by the invention is supported by a basalt fiber skeleton and is subjected to confinement coating by alginate gel, so that 1) the mechanical strength and the structural stability of an immobilization system are improved; the method has the advantages of simple operation, convenience in use, optimization of microalgae attachment and mass transfer environment, formation of a long-strip-shaped structure convenient for hanging, arrangement and overall recovery, direct resource utilization of the material after the use period, and preparation of the algae-based bio-fertilizer for improving saline-alkali soil.
Absstract of: CN122502449A
The invention discloses a chlorophyll binding peptide and application thereof, and belongs to the technical field of food science and biology. The invention relates to a chlorophyll binding peptide excavated from microalgae, in particular to a chlorophyll binding peptide with high chlorophyll binding activity. The chlorophyll binding peptide comprises a chlorophyll binding peptide PEP1, a chlorophyll binding peptide PEP2, a chlorophyll binding peptide PEP6 and a chlorophyll binding peptide PEP7. The chlorophyll binding peptide with low molecular weight shows unique advantages, has strong structural designability, realizes accurate interaction with chlorophyll, has better solubility and processing adaptability, and provides a new path for efficient protection of chlorophyll. The chlorophyll binding peptide obtained through screening can remarkably improve the thermal stability of chlorophyll in an aqueous solution through specific binding, and is suitable for natural pigment stabilization and functional food development.
Absstract of: CN122498449A
The invention discloses a macrobrachium rosenbergii land-based round pool ecological breeding system and method, and relates to the technical field of breeding. Comprising the steps of young shrimp putting, water quality management, bait casting management, pond reversing, young shrimp desalination and the like. The abundance of microalgae in a water body is maintained to be 104-107 cell/mL through micro-ecological regulation and control, a beneficial micro-ecological preparation is added, and water purification is realized by utilizing a micro-filter, a disinfection tank and a water purification tank; feeding management is adjusted according to the growth stage of shrimp seeds, feeding is not carried out in the I stage, artemia nauplii are mainly used in the II-VI stage, shrimp slices are gradually increased in the VII-XI stage, and egg custard and the shrimp slices are fed in the young shrimp stage; the pond pouring operation is carried out when ammonia nitrogen is greater than or equal to 2mg/L or nitrite is greater than or equal to 0.5 mg/L, and the salinity of the shrimp seeds is reduced to 0.3% by adding fresh water every day. The method is suitable for large-scale breeding, the survival rate and the growth speed of shrimp seeds are remarkably increased, and the method has the advantages of being efficient and ecological and can be applied to other aquaculture fields.
Absstract of: CN122503223A
The invention discloses a large-scale microalgae collaborative culture process with pipelines and raceway ponds connected in series, and belongs to the technical field of microalgae biology. Comprising the following steps: step 1, carrying out sterile propagation on target microalgae species in a column type photobioreactor to obtain a primary microalgae species liquid; step 2, inoculating the primary algae seed liquid into a pipeline type photobioreactor for secondary propagation, executing gradient cooling domestication in the propagation process, and reducing the culture temperature to a target temperature range from an initial temperature range in stages to obtain secondary algae seed liquid; step 3, inoculating the secondary algae seed liquid into the open raceway pond according to a volume ratio of 10-30%, and carrying out semi-continuous culture; and step 4, collecting supernate harvested in the raceway pond, and recycling the supernate as at least part of water source for preparing the culture medium of the pipeline type photobioreactor after the supernate is treated. According to the process, the growth delay phase of the raceway pond after inoculation is shortened through gradient cooling domestication, the pollution failure rate of culture batches is reduced, and consumption of fresh water resources and nutritive salt is reduced through recycling of supernate.
Absstract of: CN122503253A
The invention relates to the technical field of agricultural planting, and provides a bacterial-algae symbiotic solution rich in SOD and a preparation method thereof, the pH value of the bacterial-algae symbiotic solution finished product is 4.4-4.6, and the bacterial-algae symbiotic solution is prepared from the following raw materials in parts by weight: 28-42 parts of an acid-resistant active microalgae solution, 18-26 parts of an acid-resistant composite functional bacterial solution, 32-46 parts of a weak acid organic symbiotic nutrient solution and 0.6-1.8 parts of an acid active stabilizer. Wherein the effective viable count in the algal-bacterial symbiotic liquid is greater than or equal to 2.2 * 10 CFU/mL, the viable microalgae retention rate is greater than or equal to 96%, and the SOD enzyme activity is greater than or equal to 900 U/mL. The invention solves the problems that the existing algal-bacterial symbiotic liquid cannot maintain the algal-bacterial dual-activity and low SOD enzyme activity under the condition of weak acidity (pH is about 4.5).
Absstract of: KR20260118887A
본 발명은 미세조류 배양기의 배양 수조에 물을 공급하여 충진하는 물 공급 단계와, 상기 배양 수조로 오존을 공급하는 오존 공급 단계와, 상기 배양 수조에 과초산을 공급하는 과초산 공급 단계와, 상기 배양 수조의 내부에 형성된 상기 물과 오존 및 과초산을 포함하는 복합 세척액에 공기 기포를 공급하는 배양 수조 세척 단계와, 상기 배양 수조에 오존 중화제를 공급하는 오존 중화제 공급 단계 및 상기 배양 수조에 수용되어 있는 세척 혼합물을 필터링하는 세척 혼합물 필터링 단계를 포함하는 미세조류 배양기 세척 방법을 개시한다.
Absstract of: CN122482694A
The invention discloses a grading anaerobic-aerobic biochemical treatment process for aquaculture wastewater, and belongs to the technical field of aquaculture wastewater treatment. According to the graded anaerobic-aerobic biochemical treatment process for the breeding wastewater, the breeding wastewater subjected to solid-liquid separation is discharged after being subjected to composite conditioning-functional filler contact, USR anaerobic fermentation, UASB anaerobic degradation, medium precipitation pretreatment, two-stage A/O aerobic denitrification, final precipitation separation, microalgae-biological membrane biochemical treatment and disinfection standard reaching treatment. The composite conditioning-functional filler contact tank is used for balancing water quality, buffering load and adsorbing and intercepting suspended and colloidal pollutants; the USR and the UASB cooperate to realize graded anaerobic degradation of organic matters and biogas recovery; the two-section A/O reaction tank is used for enhancing nitrification and denitrification nitrogen removal; and the microalgae-biological membrane biochemical pool further absorbs nitrogen and phosphorus and degrades residual organic matters. All the procedures are monitored in real time and regulated in a linkage mode through the intelligent central control system, and the breeding wastewater treatment stability, the resource utilization rate and the standard discharge reliability can be improved.
Absstract of: CN122478789A
The invention relates to a composition with antioxidant and anti-aging functions as well as a preparation method and application of the composition. The composition is prepared from hesperidin methyl chalcone (HMC), chlorophyta microalgae extract and microprotein in a mass ratio of (0.1-30): (0.1-50): (0.1-80). Compared with the prior art, the hesperidin methyl chalcone (HMC), the chlorophyta microalgae extract and the micro-protein in a specific proportion are combined for use to achieve a synergistic effect, so that the anti-wrinkle mask has the effects of resisting skin oxidation, resisting aging and relieving wrinkles.
Absstract of: CN122483924A
The invention relates to the technical field of microbial environment remediation, and particularly discloses acid-resistant, high-phosphorus-resistant and high-ammonium-nitrogen-resistant euglena and application thereof.The microalgae is leachate-resistant euglena Euglena sp. DY2 separated from ardealite leachate and preserved in the China Center for Type Culture Collection (CCTCC) with the preservation number of CCTCC M 20252476, and the acid-resistant, high-phosphorus-resistant and high-ammonium-nitrogen-resistant euglena is a strain of Euglena sp. DY2 separated from ardealite leachate with the preservation number of CCTCC M 20252476. CM culture medium powder is added into a diluent of ardealite leachate according to the mass-to-volume ratio of 5%-20% to prepare an enrichment culture medium of the euglena, and the enrichment culture medium not only can maintain the tolerance of the euglena to the leachate, but also can promote the biomass accumulation of the euglena; the enriched euglena is applied to treatment of the ardealite leachate, and the euglena grows and accumulates biomass by utilizing nutrient elements in the leachate and efficiently removes nitrogen at the same time. According to the method, low-cost and efficient treatment and resource utilization of the ardealite leachate are achieved, microalgae can grow continuously in a photoautotrophic mode, and the method is environmentally friendly and free of secondary pollution and has wide application prospects in tr
Absstract of: CN122483897A
The invention provides an annular magnetic stirring microalgae culture device which comprises a container, an external electromagnetic driving assembly and a magnetic stirring ring, the external electromagnetic driving assembly is arranged outside the container in a liftable mode, and the magnetic stirring ring is arranged in the container. The external electromagnetic driving assembly is used for magnetically driving the magnetic stirring ring to rotate in the container; according to the invention, a central mechanical shaft is not arranged, the central through hole structure of the hollow magnetic stirring ring realizes unobstructed penetration of an internal light path of the reactor, the illumination blind area is reduced, and dead angles such as a sealing ring and a mechanical bearing in the reactor are removed; in cooperation with the fluid scouring effect, wall-hanging deposition of microalgae cells and attachment of infectious microbe biological membranes are prevented, and the pollution probability in long-term continuous culture is reduced.
Absstract of: CN122482636A
The invention discloses a method for removing perfluorinated compounds in wastewater by using nano zero-valent iron-microalgae, which comprises the following steps: adding nano zero-valent iron into a microalgae culture solution of wastewater containing the perfluorinated compounds to construct a nano zero-valent iron-microalgae synergistic degradation system, and reacting to remove the perfluorinated compounds in the wastewater. According to the method disclosed by the invention, through the constructed nano zero-valent iron-microalgae degradation system, the growth of microalgae can be promoted, and the activity of degrading enzyme can be improved; meanwhile, active substances such as organic acid generated by the microalgae not only can effectively avoid passivation and inactivation of the nano zero-valent iron, but also can mediate generation of extracellular active oxygen (such as. OH), so that the degradation rate of the perfluorinated compounds is remarkably increased, and efficient in-situ removal of the perfluorinated compounds in the wastewater is realized.
Absstract of: US20260218259A1
0000 Provided are a biological flocculant, a preparation method therefor and use thereof in control of Cyanobacteria. The biological flocculant includes cationic hydroxyethyl cellulose and an extracellular polysaccharide. The extracellular polysaccharide is produced by fermentation of Agrobacterium sp. LHZJX.A07 that is taxonomically named. A method for preparing the extracellular polysaccharide includes screening Agrobacterium from a soil enrichment culture dilution spread plate, purifying and inoculating the Agrobacterium into a culture medium for culture, performing fermentation to obtain a extracellular polysaccharide crude solution, and performing concentration, purification and drying to obtain the extracellular polysaccharide.
Absstract of: US20260218421A1
0000 A process is described for preparing a microfibre with living microalgae inside, including the steps of: preparing and mixing micro-algae and a biomaterial in a nutritional medium; and micro-fluidic spinning of the micro-algae mixture and the biomaterial which is polymerized; wherein the micro-fluidic spinning is carried out in a micro-fluidic spinning chip, provided with a spinning die having a “grooves” section, so as to obtain a grooved section.
Absstract of: US20260218211A1
0000 The present disclosure relates to recombinant cyanobacterial cells for the production of a chemical compound of interest. In particular, the present disclosure relates to genetic modifications that introduce one or more heterologous polyketide synthases (PKS) into a cyanobacterial cell. These cells can further comprise nucleic acid constructs that provide the cyanobacterial cells with the capability of producing chemicals of interest or compounds of interest, including Compound (I).
Absstract of: CN122465713A
The invention relates to the technical field of microbial environmental remediation, and particularly discloses an acidophilic chlamydomonas and application thereof.Microalgae in the scheme is an acidophilic chlamydomonas sp. DY1 separated from ardealite leachate, the algae strain is preserved in the China Center for Type Culture Collection (CCTCC), the preservation number is CCTCC M 2026446, and the acidophilic chlamydomonas sp. DY1 is preserved in the China Center for Type Culture Collection (CCTCC). The acidophilic chlamydomonas can grow in the ardealite leachate with the pH value of 2.0-4.0, and has a good removal effect on ammonium nitrogen and total nitrogen in the ardealite leachate; the optimal addition initial algae density of the acidophilic chlamydomonas DY1 is 1.0 * 10 < 5 >-8 * 10 < 5 > cells/mL, and the optimal treatment concentration range of the phosphogypsum leachate is that ammonium nitrogen is 25-80 mg/L, and total nitrogen is 25-80 mg/L. The method can stably remove the nitrogen-containing nutritive salt in the phosphogypsum leachate and synchronously accumulate the microalgae biomass, has the characteristics of economy, high efficiency, no secondary pollution and simplicity and convenience in operation, and is of great significance in repairing and treating the phosphogypsum leachate.
Absstract of: CN122464580A
The invention discloses an ecological purification method for treating aquaculture wastewater based on synergy of photosynthetic bacteria and microalgae. Breeding wastewater is subjected to physical interception and electrodialysis conductance reduction pretreatment and then is introduced into the microfluidic reaction chamber, and the system alternately operates between a mass transfer mixing phase and a sensing phase and between a partition degradation phase and an optical radiation phase. In the mass transfer mixing stage, bacteria and algae are mixed and suspended for cross-boundary mass transfer, the system extracts a characteristic dielectric relaxation time constant of complex impedance data, and mode switching is triggered in combination with a preset metabolic correlation mapping model. In the partition degradation stage, the system adaptively adjusts the alternating current driving frequency, the traveling wave dielectrophoresis force is utilized to drive the microalgae and the photosynthetic bacteria to generate transverse differential separation, and a liquid phase partition is constructed; and meanwhile, the dual-frequency light source array performs phase-locked pulse radiation according to a cell space displacement track, so that independent supply of specific wavelength energy is realized. And the purified water body is subjected to split-flow liquid discharge and gravity settling to complete biomass harvesting. According to the invention, the cooperation of e
Absstract of: CN122465906A
The invention discloses a method for rapidly forming a microalgae biological membrane on the surface of a carrier, which comprises the following steps: (1) inoculating a target microalgae species into a culture medium, and carrying out enlarged culture under proper illumination and temperature conditions to obtain an algae solution in a logarithmic phase; (2) putting a carrier material into a bio-membrane reactor, introducing the algae liquid obtained in the step (1) into the bio-membrane reactor, and submerging the carrier by the algae liquid; (3) within 0-24 hours of biofilm formation starting, enabling the water flow shear stress on the surface of the carrier to be not higher than 0.02 Pa; when the biofilm formation is started, indoleacetic acid is added into the algae liquid, so that the instantaneous concentration of the indoleacetic acid in the algae liquid reaches 0.1 mg/L; (4) further reducing the shear stress of the water flow to 0.01 Pa or below within 24-72 hours of membrane formation starting; simultaneously and respectively adding indoleacetic acid into the algae liquid at the 24th hour, the 48th hour and the 72h; (5) 72 hours after starting biofilm formation, forming pulse type water flow in the biofilm reactor by regulating and controlling the rotating speed of a driving motor, and alternately changing the water flow shear stress between 0.05 pa and 0.15 pa every 30 minutes; and continuously running under the conditions until the seventh day. According to the i
Absstract of: CN122465712A
The invention discloses a method for enhancing carbon sequestration of a microalgae symbiotic system under heat stress, and belongs to the technical field of microalgae biological carbon sequestration. The method comprises the following specific steps: constructing a scenedesmus quadricauda and chlorella pyrenoidosa symbiotic system and inoculating the symbiotic system into a culture medium; adding exogenous betaine with the final concentration of 0.3-1.0 mM into the culture system; and introducing industrial flue gas containing carbon dioxide into the system at a heat stress temperature of 45 DEG C, and carrying out microalgae photosynthetic carbon sequestration culture under an illumination condition. The stability of the microalgae photosynthetic system at high temperature is remarkably enhanced by coupling the interspecific synergistic effect of the symbiotic microalgae with the osmotic regulation and antioxidant activation mechanism of the betaine. According to the method, the upper carbon sequestration temperature resistance limit of the microalgae is broken through to 45 DEG C, the dry weight and the carbon sequestration rate of the biomass under extreme heat stress are greatly improved, and the method is green, safe and easy for engineering amplification.
Absstract of: CN122465700A
An internal light distribution photobioreactor belongs to the technical field of microalgae large-scale culture related equipment, and comprises: a culture device, which is provided with a culture chamber for microalgae culture, and is of a thermal insulation structure and adjustable in culture temperature; the light gathering system is used for gathering sunlight and can provide redundant illumination for the culture device, and the light gathering ratio of the light gathering system is adjustable. According to the invention, the modular structure design of structures such as a light distribution device, a reflection system and a light condensation system can be realized. The light distribution device is innovatively arranged in the culture device, so that light distribution in the culture device can be realized, heat exchange can be realized in the culture device, and the temperature of a culture solution in the culture device can be quickly and directly adjusted. The reactor solves the problem of high difficulty in temperature adjustment and illumination intensity adjustment of the reactor in the prior art.
Absstract of: CN122477050A
The purpose of the present invention is to provide a composition containing extracellular vesicles derived from microalgae. In one embodiment of the present invention, a composition is prepared that contains (A) microalga-derived extracellular vesicles and one or more species selected from the group consisting of (B-1)-(B-3) (where (B-1) is one or more species selected from the group consisting of primary alcohols and polyols, (B-2) is one or more species selected from the group consisting of organic acids and salts thereof, and (B-3) is a chelating agent.
Absstract of: CN224551486U
The utility model discloses a microalgae lamp and a culture device, and belongs to the technical field of microalgae culture, a light source plate is directly arranged on a heat dissipation plate, heat generated by the light source plate is directly transferred to the heat dissipation plate, and the heat dissipation area is increased due to the arrangement of heat dissipation strips, so that the heat dissipation effect is good, and the heat dissipation efficiency is high. According to the utility model, the light source plate is directly arranged on the heat dissipation plate without components such as a sealing structure and a lens, so that the manufacturing difficulty is reduced, the number of the components is reduced, the structure is simple, the light rays emitted by the lamp beads on the light source plate can directly irradiate the culture, the damage of the components such as the lens is avoided, the loss of light energy is greatly reduced, and the energy is saved. In addition, the first connecting piece is connected with one end of the heat dissipation plate, and the second connecting piece is connected with the other end of the heat dissipation plate, so that the light source mechanisms are integrated into a whole, installation and carrying are convenient, the structure is simple, and installation is easy.
Absstract of: CN122439766A
The invention relates to the technical field of microorganisms, and discloses a yeast microorganism as well as a preparation method and application thereof. The yeast microorganism comprises inactivated saccharomycetes, arginine, chitosan, trace elements and an emulsified coating layer, the emulsified coating layer coats the surface modified arginine, the chitosan and the saccharomycetes adsorbing the trace elements, and the emulsified coating layer comprises cholesterol and phospholipid. After the surfaces of the yeast microorganisms are treated by adopting chitosan and arginine, the surface potential of the yeast microorganisms is positive, trace elements can be effectively adsorbed, the yeast microorganisms are coated by phospholipid cholesterol, the average density of the yeast microorganisms is smaller than that of untreated yeast microorganisms, the suspension property of the yeast microorganisms in water can be remarkably improved, and the yeast microorganisms can be more effectively ingested and utilized by cladocerans; bad water is reduced, the dilemma that existing cladocerans culture highly depends on microalgae as bait is improved, and a basis is provided for cladocerans industrial culture.
Absstract of: CN122444346A
The invention belongs to the technical field of environmental protection, and discloses an application of a microbial inoculum in treatment of sewage containing resistance genes or preparation of a product for treatment of sewage containing resistance genes, the microbial inoculum comprises seawater microalgae and fungal hyphae, the resistance genes comprise at least one of integron resistance genes, sulfonamides resistance genes, fluoroquinolones resistance genes and tetracycline resistance genes, and the salinity of the sewage is 1%-4%. According to the method for treating the sewage containing the resistance genes, the ARGs in the sewage can be effectively removed, the good removal effect on integron ARGs, sulfonamides ARGs, fluoroquinolones ARGs and tetracyclines ARGs in the sewage is achieved, and the total ARGs abundance removal rate reaches 97.66%. The method for treating the sewage containing the resistance genes is green, pollution-free and low in operation cost; operation is simple and a treatment period is short.
Absstract of: AU2025209239A1
The invention relates to the production of a novel food product made from one or more microalgae. It can be used as an intermediate for manufacturing a more complex product intended either for human food or for veterinary food. The invention also relates to the uses of said food product made from one or more microalgae. The invention also relates to a method for producing said food product made from one or more microalgae.
Absstract of: US20260209683A1
0000 The invention provides marine microalgal strain of the Ulvales order of the Ulvophyceae class which have utility in the efficient and environmentally beneficial preparation of triacylglycerides and polyunsaturated fatty acids, which can in turn be used for fuels or feeds.
Absstract of: CN122427793A
The invention provides a method and device for enhancing the segmented carbon sequestration performance of microalgae, and the method comprises the following steps: mixing and dispersing CO2-containing gas and a culture solution in a Venturi tube by using a composite circulating gas supply structure formed by the Venturi tube and a photobioreactor, and then refluxing into the photobioreactor; the method comprises the following steps: regulating and controlling plant hormones by stages according to physiological statuses and culture targets in different growth stages in a microalgae culture process: not adding the plant hormones in an early stage or adding the plant hormones with the addition amount lower than that in a middle stage; in the middle stage, plant hormones are added to enhance photosynthesis, cell division and carbon assimilation ability of microalgae; in the later stage, according to the continuous carbon sequestration or target product accumulation requirement, the plant hormone adding amount and adding frequency are adjusted or adding is stopped; the culture temperature, the illumination intensity, the light-dark period, the CO2 concentration and the circulation flow are controlled. According to the method, the microalgae biomass accumulation, the chlorophyll content, the CO2 utilization rate and the light energy utilization efficiency can be remarkably improved.
Absstract of: CN122423508A
A milch goat feeding method relates to the technical field of feeding, the milch goat feeding method comprises the following steps: feeding fodder including coarse fodder, concentrated fodder and a selenium preparation, adding the coarse fodder and the concentrated fodder according to four seasons in the growth period and the recovery period of milch goats for conventional feeding, and reducing the coarse fodder, increasing the concentrated fodder and adding the selenium preparation in the pregnancy period and the milk production period; the concentrated feed comprises corn, soybean meal, bran and trace elements, the trace elements comprise multivitamins, salts and a calcium preparation, the selenium preparation is a fresh microalgae wet material rich in organic selenium, and the calcium preparation comprises one or more of calcium hydrophosphate, bone meal and soybean curb residues. The milch goats are fed with compound feed composed of coarse feed, concentrated feed and selenium-rich fresh microalgae, and fresh goat milk rich in organic selenium and calcium is obtained.
Nº publicación: CN122428024A 21/07/2026
Applicant:
XIAMEN UNIV
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Absstract of: CN122428024A
The invention relates to a high-sensitivity and high-efficiency method for detecting the number of gametes of noctiluca, which comprises the following steps: filtering a water sample to be detected, collecting microalgae cells, and extracting by adopting a Chelex-100 chelation method to obtain a DNA (Deoxyribose Nucleic Acid) template; a ddPCR reaction system is constructed, the ddPCR reaction system comprises the DNA template, a specific primer pair and a TaqMan probe, the sequence of the specific primer pair is an Ns175F primer as shown in SEQ ID NO.1 and an Ns268R primer as shown in SEQ ID NO.2, the sequence of the TaqMan probe is as shown in SEQ ID NO.3, the 5'end of the probe is labeled with a fluorescence reporter group, and the 3 'end of the probe is labeled with a fluorescence quenching group; carrying out PCR amplification on the ddPCR reaction system after the ddPCR reaction system is subjected to microdroplet segmentation; reading a fluorescence signal of a PCR amplification product, calculating the initial concentration of the target DNA according to the positive microdroplet proportion, and converting to obtain the concentration of the gametes of the noctiluca in the water sample to be detected. The method can solve the problems of low detection sensitivity, complicated operation and inaccurate quantification of low-abundance samples in the prior art.
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