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MICROALGAE CULTURING APPARATUS HAVING DUAL STRUCTURE

Resumen de: KR20260066564A

본 발명은 외부수조; 상기 외부수조내 공기를 공급하는 에어토출부; 및 상기 외부수조 내부에 지지고정되고 상하 개방구조를 갖는 벽면으로 이루어진 관형구조체를 포함하는 이중구조를 갖는 미세조류 배양장치를 제공한다.

MICROALGAE CULTURING APPARATUS HAVING DUAL STRUCTURE

Resumen de: KR20260066565A

본 발명은 튜브형 반응기; 상기 튜브형 반응기내 공기를 공급하는 에어토출부; 및 상기 튜브형 반응기 내부에 수직하게 지지고정되는, 한쌍의 대향하는 채널바 구조체를 포함하는 이중구조를 갖는 미세조류 배양장치를 제공한다.

Device for mixing and conveying carbon dioxide in fresh water microalgae culture air

Resumen de: CN224227021U

The utility model provides a device for mixing and conveying carbon dioxide in fresh water microalgae culture air. According to the device, an air compressor and a standby air compressor are installed on an installation frame, air filters are installed on the air compressor and the standby air compressor respectively, one-way gas valves are installed on pipelines, communicated with an air output pipe, of the air compressor and the standby air compressor respectively, and a condensate water inlet pipe and a condensate water outlet pipe are installed on a condenser respectively. The two ends of the condenser are communicated with the outlet end of the air output pipe and the inlet end of the mixed gas pipe respectively, a gas flow adjusting valve is installed on the carbon dioxide output pipe, one end of the carbon dioxide output pipe is communicated with the carbon dioxide storage tank, and the other end of the carbon dioxide output pipe is communicated with the mixed gas pipe. Carbon dioxide introduced by the device is mixed with air according to the amount of 1%-5% of the air content, the technical problem that a carbon source is needed in the growth process of microalgae is solved, and the device is reasonable in design, easy to operate, high in automation degree and suitable for most microalgae cultivation enterprises or research institutions.

Microalgae culture wastewater treatment system based on thick and thin shunting

Resumen de: CN224226847U

The utility model relates to a microalgae culture wastewater treatment system based on thick and thin flow division, which comprises a solid-liquid separation device and an anaerobic fermentation device, the solid-liquid separation device comprises a thick liquid sedimentation tank and a thin liquid sedimentation tank, and the thick liquid sedimentation tank and the thin liquid sedimentation tank are separated by a partition plate; the upper side of the concentrated liquid sedimentation tank is provided with an impurity removal filtering device, the impurity removal filtering device is provided with a shell, the inner wall of the shell is provided with two chains, a plurality of screen pieces are connected between the two chains, the inner wall of the shell is provided with a waste discharge hopper, the chains are arranged in an inclined mode, and the waste discharge hopper is provided with a water outlet. The upper chain section of the chain conveys from bottom to top, the waste discharging hopper is located below the discharging end of the upper chain section, the shell is provided with a feeding port above the feeding end of the upper chain section, and the bottom wall of the shell is provided with a liquid outlet. The whole process flow is simple, the energy consumption is low, the recycling and high-value utilization of the livestock and poultry breeding wastewater can be realized to the greatest extent, and the sewage treatment cost is reduced.

Coupling fermentation method for synthesizing single-cell protein from methane and carbon dioxide

Resumen de: CN121991875A

The invention belongs to the technical field of synthetic biology and fermentation engineering, and particularly relates to a coupling fermentation method for synthesizing single-cell protein from methane and carbon dioxide. Comprising the following steps: domesticating aerobic methane-oxidizing bacteria, domesticating microalgae, inoculating the domesticated microalgae into a special culture medium, mixing, vacuumizing, introducing first mixed gas, and performing illumination fermentation to obtain fermentation liquor; and sequentially carrying out centrifugal separation and vacuum drying on the fermentation liquor to obtain single-cell protein. According to the method, domesticated aerobic methane-oxidizing bacteria and microalgae are jointly inoculated into a special culture medium for fermentation, and then centrifugal separation and vacuum drying are performed, so that the yield of single-cell protein is increased.

Microgravity environment microalgae closed culture container, system and use method

Resumen de: CN121991782A

The invention provides a microgravity environment microalgae closed culture container, a microgravity environment microalgae closed culture system and a use method. The upper half shell and the lower half shell are connected to the upper end and the lower end of the culture solution box respectively; the culture solution box comprises a wave-shaped solution box top wall and a wave-shaped solution box bottom wall which are made of hydrophobic breathable materials, a solution box side wall which is connected with the solution box top wall and the solution box bottom wall in a matched mode, and a light source assembly which is arranged in the culture solution box in a penetrating mode; the upper half shell is matched with the top wall of the liquid tank to form an upper air chamber; the lower half shell is matched with the bottom wall of the liquid tank to form a lower air chamber; and the culture solution box, the upper air chamber and the lower air chamber are respectively provided with an inlet and an outlet. According to the microgravity environment microalgae closed culture container provided by the invention, the contact area between the culture solution box and the air is increased, and the exchange efficiency of the microalgae culture solution and oxygen and carbon dioxide in the air is improved; in addition, the whole reactor is composed of fixing parts, so that the structure of the culture device is simplified, and the manufacturing cost is reduced.

Aerial fog culture system and culture method for aerial microalgae

Resumen de: CN121991795A

The invention discloses an aerial fog culture system and a culture method of aerial microalgae, and the aerial microalgae grow on the surface of a biofilm carrier in a non-immersion mode by combining an atomized culture medium supply mode with the biofilm growth characteristics of the aerial microalgae, so that the light receiving condition of the aerial microalgae is remarkably improved, and the illumination utilization efficiency is improved; a stable gas-liquid interface is formed on the surface of the aerophyte biological membrane, so that the contact area of gas and the biological membrane is increased, the absorption of carbon dioxide and the release of oxygen are facilitated, and the gas-liquid mass transfer efficiency in the aerophyte culture process is remarkably improved; according to the culture method disclosed by the invention, the culture scale of the aerial algae can be enlarged on the premise of not obviously increasing the occupied area by expanding the multi-layer biological membrane culture unit in the vertical direction; after the culture is finished, the algae can be harvested by scraping a biological membrane, so that complicated solid-liquid separation processes such as centrifugation in the traditional liquid culture are avoided, the harvesting process is simplified, and the energy consumption and the operation cost in the harvesting process are reduced.

UDP (User Datagram Protocol) sugar pyrophosphorylase CpUSP gene and application thereof in promoting harvesting and crushing of microalgae

Resumen de: CN121991989A

The invention relates to a UDP sugar pyrophosphorylase CpUSP gene in the field of bioengineering and application of the UDP sugar pyrophosphorylase CpUSP gene in promoting harvesting and crushing of microalgae. The nucleotide sequence of the CpUSP gene is as shown in SEQ ID NO: 1, and the amino acid sequence of the CpUSP gene is as shown in SEQ ID NO: 2. After the UDP-sugar pyrophosphorylase of the chlorella pyrenoidosa is over-expressed in the chlamydomonas, the cell morphology can be changed, the harvesting and breaking efficiency of the chlamydomonas is remarkably improved, and a new technical scheme is provided for reducing the harvesting and cell breaking cost of the microalgae.

Sewage treatment method based on microalgae thin-layer fountain photobioreactor

Resumen de: CN121990690A

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment method based on a microalgae thin-layer fountain photobioreactor, which comprises the following steps: S1, inoculating microalgae cells into the thin-layer fountain photobioreactor, and culturing to a logarithmic phase to obtain a high-activity microalgae seed solution; s2, sewage to be treated is introduced into the thin-layer fountain photobioreactor containing the high-activity microalgae seed solution in the step S1, and the concentration of microalgae cells is maintained at 0.01-5.0 g/L; s3, according to the sewage turbidity and the treatment stage, dynamically adjusting the thickness of a transparent material and a liquid layer of the surface sealing degree (namely the sealing film ratio) of the thin-layer fountain photobioreactor, and supplementing water in real time according to the evaporation condition so as to maintain the stable operation of the system; and S4, cooperatively regulating and controlling parameters such as the flow of a water pump, the pH value of a culture solution and the thickness of a liquid layer of the thin-layer fountain photobioreactor, and continuously operating until the effluent reaches the discharge standard. According to the method disclosed by the invention, gas-liquid mass transfer and light energy utilization of the microalgae culture solution are remarkably enhanced through a thin-layer fountain structure, and the light li

MICROALGAL OIL EMULSIONS AND USES THEREOF

Resumen de: WO2026095812A1

The present invention relates generally to nutritional compositions comprising an emulsion comprising one or more non-mammalian lipids and/or triacylglycerides, including such compositions having a lipid and/or triacylglyceride content comparable to that of mammalian milk, such as human milk. Particularly contemplated are nutritional compositions having a lipid and/or triacylglyceride content comparable to that of human milk, wherein at least some of the lipid and/or triacylglyceride is from microalgae.

Microalgae Y-1 as well as culture method and application thereof

Resumen de: CN121975626A

The invention relates to the technical field of microorganisms, in particular to a microalgae Y-1 as well as a culture method and application thereof. According to the invention, a strain of green hammer microalgae Y-1 is found and identified, and the preservation number of the green hammer microalgae Y-1 is CCTCC NO: M 20252903. The gene sequence of the microalgae Y-1 is compared with the published algae gene sequence, and the microalgae Y-1 is confirmed to be a new species and belongs to the Chloridium genus by combining the comprehensive analysis of a micromorphological photograph. The successful separation and culture of the microalgae Y-1 not only provides an ideal material for the functional research of marine algae, but also lays a foundation for further exploring the symbiotic relationship between the microalgae Y-1 and coral. In addition, the microalgae Y-1 has potential application value in the fields of biological energy sources (biodiesel and hydrogen production), environmental restoration (wastewater treatment and CO2 fixation), agriculture and aquatic products (bio-fertilizers and feed additives) and the like.

Drug-loaded microalgae motor as well as preparation method and application thereof

Resumen de: CN121971648A

The invention relates to the technical field of micro-nano, and discloses a drug-loaded microalgae motor as well as a preparation method and application thereof. The drug-loaded microalgae motor comprises a microalgae motor and a nano-particle drug loaded on the microalgae motor, the microalgae motor is connected with the nano-particle drug through electrostatic adsorption, and microalgae is natural or engineered unicellular algae with movement ability. The nanoparticle drug is formed by self-assembling natural polysaccharide and natural active substances after covalent cross-linking. According to the invention, the microalgae motor can autonomously move in the gastrointestinal tract by utilizing the flagellum movement of the microalgae, and is actively targeted to the colitis disease part, so that the local concentration of the medicine is improved, and the curative effect is enhanced. The microalgae motor combines the strong anti-oxidation/anti-inflammatory activity of astaxanthin and the biological activity of microalgae, and can synergistically relieve colitis in multiple ways.

Method for rapidly denitrifying high-turbidity biogas slurry by using carbon quantum dot-assisted microorganisms and application of carbon quantum dot-assisted microorganisms

Resumen de: CN121974499A

The invention belongs to the technical field of wastewater purification, and particularly relates to a method for rapidly denitrifying high-turbidity biogas slurry by using carbon quantum dot-assisted microorganisms and application of the method. The method comprises the following steps: inoculating microalgae into biogas slurry, adding carbon quantum dots, and uniformly mixing to construct a purification system; the purification system is subjected to continuous visible light irradiation, meanwhile, mixed gas of carbon dioxide and air is introduced, and photosynthetic denitrification purification treatment is conducted on the biogas slurry. According to the invention, the technical problems of inhibition of photosynthesis of microalgae, slow electron transfer of microorganisms, difficulty in recovery of nano materials and the like in existing wastewater (especially biogas slurry) purification are solved.

Germplasm cryopreservation method suitable for bait microalgae

Resumen de: CN121975623A

The invention relates to a germplasm cryopreservation method suitable for bait microalgae, and belongs to the field of algae preservation, and the method comprises the following steps: carrying out low-temperature domestication on microalgae in a logarithmic phase, and centrifugally collecting algae mud; mixing the algae mud with a protective solution for pretreatment; after pretreatment, mixing with a cryoprotectant with specific composition, carrying out gradient cooling, and storing at-80 DEG C; during thawing, the cryopreservation tube is quickly thawed in a water bath, and the cryoprotectant is subjected to gradient elution through a sucrose solution. The method successfully realizes long-term stable preservation of various bait microalgae at-80 DEG C by optimizing a cryoprotectant combination and optimizing key parameters such as a protective solution, balance time and thawing temperature, has high survival rate and stable physiological traits after resuscitation, and is low in cost, convenient to operate and suitable for industrial production. And a new technical scheme is provided for protection and utilization of microalgae germplasm resources.

Preparation method of microalgae biofilm microprotein organic water-soluble fertilizer

Resumen de: CN121974763A

The invention discloses a preparation method of a microalgae biofilm microprotein organic water-soluble fertilizer. The preparation method comprises the steps of microalgae biomass pretreatment, deep conversion and enzymolysis, microbial biofilm treatment, feed liquid concentration and blending and by-product treatment. Microalgae biomass is treated through acid-base wall breaking dissolution, advanced oxidation and proteolysis, a microbiological membrane is treated through calcium peroxide heating wall breaking, enzyme (MBE-3) enzymolysis and plate-frame pressure filtration, microprotein feed liquid is obtained and concentrated and blended into an organic water-soluble fertilizer, and by-products are dried to serve as the soil conditioner. According to the method, efficient conversion and full-value utilization of microalgae and microbial biological membrane resources are achieved, the protein extraction rate and the product fertilizer efficiency are improved, the process integration is high, and the ecological and economic benefits are remarkable.

Microalgae species culture bottle

Resumen de: CN224186163U

The utility model discloses a microalgae species culture bottle, and relates to the technical field of algae species culture. The bottle comprises a bottle body and two dustproof assemblies, the upper end of the bottle body is in threaded fit with a bottle cap, a ball barrel is embedded in the side portion of the bottle body, and connecting pieces are arranged on the side portion of the ball barrel and the side portion of the bottle body. The dustproof assembly comprises a protection box, the end, away from the bottle body, of the connecting piece is clamped in the protection box, the lower portion of the protection box is in sliding fit with a clamping piece corresponding to the connecting piece, the upper portion of the clamping piece is clamped to the upper portion of the connecting piece, a first movable plate is placed on the upper side of the clamping piece, a fixing column is arranged on the upper side of the first movable plate, and a first spring is placed on the upper side of the first movable plate. The L-shaped groove channel is matched with the limiting block, so that the probability that the second movable plate is directly pushed out of the first groove opening by the push-out piece due to misoperation is reduced, and meanwhile, the L-shaped rotating plate is rotated to drive the second movable plate to move downwards so as to relieve safe locking.

Efficient microalgae culture device and use method thereof

Resumen de: CN121950460A

The invention relates to the technical field of microalgae culture devices, in particular to an efficient microalgae culture device and a using method thereof.The efficient microalgae culture device comprises a first-stage raceway pond, a second-stage raceway pond and a third-stage raceway pond which are sequentially stacked from bottom to top, and a partition plate is arranged at the bottom of a pond body of each stage of raceway pond; the horizontal areas of the three layers of raceway ponds are sequentially reduced from bottom to top, and a first-stage stirring system, a second-stage stirring system and a third-stage stirring device are arranged at one time corresponding to each stage of raceway pond; wherein each of the first-stage stirring system and the second-stage stirring system comprises a stirring device and a drainage device, the drainage device comprises a backflow channel and a drainage pipeline, and a lighting system is arranged at the bottom of each stage of raceway pond; the raceway ponds are arranged on the basis of a multi-layer stacking mode, and the effective culture liquid volume in unit occupied area is effectively increased; meanwhile, through the drainage mechanism, culture solution flow inoculation in the multi-stage raceway pond is achieved, the gas-liquid mass transfer efficiency is improved, the inoculation amount and the initial algae cell concentration are greatly improved, the culture period is shortened, and the culture efficiency is improved.

Gas-water two-phase carbon capture sewage recycling system and process

Resumen de: CN121948724A

The invention belongs to the field of sewage treatment, and discloses a gas-water two-phase carbon capture sewage recycling system and process. In the system, one path of a supernatant outlet of a first separation tank is connected with a microalgae biological tank; an algae-water mixed liquid outlet of the microalgae biological tank is connected with the second separation tank; one path of a sediment outlet of the first separation tank is connected with the anaerobic tank; one path of a precipitation outlet of the second separation tank is connected with the microalgae biological tank; the other path of the precipitation outlet of the first separation tank and the other path of the precipitation outlet of the second separation tank are connected with a pyrohydrolysis anaerobic digestion fermentation device; a CO2-containing biogas outlet of the pyrohydrolysis anaerobic digestion fermentation device is connected with a biogas inlet of the combined heat and power generation device; and a CO2-containing tail gas discharge port of the combined heat and power generation device is connected with a CO2 feeding port of the microalgae biological tank. The invention develops an efficient, green and low-carbon sewage regeneration and resource application technology.

Nitrogen-fixing cyanobacteria suspension liquid for returning rice field straw to field and preparation method and application of nitrogen-fixing cyanobacteria suspension liquid

Resumen de: CN121950564A

The invention relates to the technical field of straw returning, and discloses a nitrogen-fixing cyanobacteria suspension for rice field straw returning and a preparation method and application thereof.The preparation method comprises the steps that nitrogen-fixing anabaena strains are subjected to activation-domestication culture and then subjected to gradient illumination amplification culture, and anabaena liquid is obtained; centrifuging the anabaena liquid, collecting precipitates, adding a stabilizer solution to adjust the concentration of algae cells, and then performing ultrasonic dispersion and stirring treatment to obtain the nitrogen-fixing cyanobacteria suspension. The application comprises the following steps: crushing the rice straws, and applying the complex microbial inoculant to perform ploughing operation; after rice seedlings are transplanted, the nitrogen-fixing cyanobacteria suspension for straw returning to the field is applied. By utilizing the efficient biological nitrogen fixation capacity of the nitrogen-fixing anabaena, after the suspension is prepared and applied to the field, a nitrogen source can be continuously provided for straw decomposition bacteria through the nitrogen fixation effect, the microbial decomposition requirement is met, nitrogen contention between the decomposition bacteria and rice plants is avoided, and sufficient nitrogen supply from the seedling establishment stage to the jointing stage of the rice is ensured.

Composite system for promoting growth of blue-green algae and fixing carbon dioxide and method, system and application thereof

Resumen de: CN121950569A

The invention discloses a composite system for promoting growth of blue-green algae and fixing carbon dioxide and a method, a system and application thereof. The composite system comprises a 2D MOF photocatalytic material, blue-green algae bacteria and a light source. According to the method, a 2D MOF material with a specific photocatalytic structure and blue-green algae are mixed in a culture medium, and co-culture is carried out under visible light irradiation. Wherein the 2D MOF material is used as an exogenous photosensitizer, generates photo-induced electrons and active oxygen species after absorbing light energy, and provides exogenous reducing power and energy for blue-green algae, so that the carbon dioxide fixing capacity, photosynthesis efficiency and central carbon metabolism activity of the blue-green algae are remarkably enhanced. The system and the method provided by the invention can obviously promote the accumulation of blue-green algae biomass and improve the synthesis amount of beta-carotene and chlorophyll a in the blue-green algae. The method is easy and convenient to operate, mild in condition, free of complex genetic modification or additional chemical reducing agents and suitable for the fields of microalgae culture, high-value pigment production and photosynthetic organism manufacturing.

Method for cooperatively treating flue gas of steel hot-blast stove by using double algae species and application of method

Resumen de: CN121944769A

The invention relates to a method for cooperatively treating flue gas of a steel hot-blast stove by using double algae species and application of the method. The method comprises the following steps: inoculating microalgae into a reactor, filling the flue gas of the steel hot-blast stove for carbon sequestration culture, and then collecting the microalgae; the microalgae comprise chlorella and scenedesmus obliquus. According to the method, the CO2 in the flue gas of the steel hot-blast stove is fixed by utilizing the artificially cultured algae species, so that the tolerance of the flue gas is improved, and the fixation rate of the CO2 is increased.

MARINE MICROALGA AS PRODUCER OF BETA-CAROTENE, LUTEIN AND OTHER CAROTENOIDS

Resumen de: WO2026089637A1

The invention relates to the field of microbiology and biotechnology, and more particularly to a novel strain of the microalga Desmodesmus subspicatus, Dia 5, which is a producer of carotenoids, especially lutein and beta-carotene. The substances produced can be used in biologically active additives and food supplements for human consumption, as well as in various feed supplements, primarily for use in aquaculture. The novel strain has the ability to accumulate a high level of both lutein and β-carotene, and the strain biomass additionally has good organoleptic properties. The strain does not require complex culture conditions, inter alia, it does not require a high concentration of NaCl in the cultivation medium.

Compositions from marine microalgae for improvement of hair health comprising promotion of stem cell-derived conditioned medium activity

Resumen de: KR20260059201A

본 발명은 스피룰리나 추출물을 처리한 지방유래 중간엽 줄기세포 체외 배양액을 포함하는 해양미세조류 유래 모발 건강 개선용 조성물에 관한 것으로, 본 발명에 따른 해양미세조류 추출물 처리 줄기세포 배양액은 모발 건강 개선 관련 성장인자 및 사이토카인의 발현 증가를 유도함으로써 모발 건강 개선 및 탈모의 예방에 유용하게 이용될 수 있다.

MARINE MICROALGA AS PRODUCER OF LUTEIN AND OTHER CAROTENOIDS

Resumen de: WO2026089638A1

The invention relates to the field of microbiology and biotechnology, and more particularly to a novel strain of the microalga Parachlorella sp., Nanno 1, which is a producer of carotenoids, especially lutein. The substances produced can be used in biologically active additives and food supplements for human consumption, as well as in various feed supplements, primarily for use in aquaculture. The novel strain has the ability to accumulate a high level of carotenoids, primarily lutein, which constitutes approximately 2/3 of the carotenoids accumulated, and the strain biomass additionally has good organoleptic properties. The strain exhibits a high growth rate with rapid pigment accumulation, and has a simple culture protocol which can be easily scaled up.

Process for cultivating the Haematococcus pluvialis microalgae strain

Nº publicación: MD20240034A1 30/04/2026

Solicitante:

INSTITUTIA PUBLICA UNIV TEHNICA A MOLDOVEI [MD]
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Resumen de: MD20240034A1

The invention relates to biotechnology, namely to a process for cultivating theHaematococcus pluvialisgreen microalgae in order to obtain biomass with an increased content of astaxanthin.The process for cultivating theHaematococcus pluvialisCNMN-AV-07 microalgae strain comprises cultivation on a medium containing 0.3 g/L NaNO3; 0.08 g/L K2HPO4; 0.02 g/L KH2PO4; 0.02 g/L NaCl; 0.05 g/L CaCl2; 0.01 g/L MgSO4·7H2O; 0.0001 g/L ZnSO4·7H2O; 0.015 g/L MnSO4·5H2O; 0.00008 g/L CuSO4·5H2O; 0.0003 g/L H3BO3; 0.0003 g/L (NH4)6Mo7O24·4H2O; 0.0175 g/L FeCl3·6H2O; 0.0075 g/L EDTA and distilled water the rest, to which on the 5th day of cultivation are added 0.010-0.011 mM of 10 nm Ag nanoparticles stabilized in citrate, the cultivation is carried out at a temperature of 26-28°C, continuous illumination with an intensity of 28 µM photons/m2.s in the first 10 days and 150 µM photons/m2.s in the next 4 days.The technical result of the invention consists in increasing the astaxanthin content in the biomass ofHaematococcus pluvialismicroalgae.