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AI-driven efficient microalgae photobioreactor system

Resumen de: CN120173701A

The invention discloses an AI-driven high-efficiency microalgae photobioreactor system which comprises a photobioreactor body used for containing algae liquid and providing a growth environment and space for microalgae, and the photobioreactor body comprises a light guide plate light source array, an air supply aeration device and an automatic light supplementing device; the gas-liquid phase mass transfer circulation pipeline is used for promoting efficient gas-liquid phase mixing and mass transfer, is arranged outside the photobioreactor body and is connected with the photobioreactor body, and the gas-liquid phase mass transfer circulation pipeline comprises a main circulation pipeline and an auxiliary circulation pipeline; the automatic cleaning device is used for automatically cleaning the interior of the photobioreactor body in all directions and comprises a high-pressure spraying array, a supporting arm, a main arm and a telescopic arm. According to the application, optimization and innovation are carried out from the aspects of light source type selection and energy efficiency optimization, mass transfer structure innovation, AI self-adaptive control integration and dead-corner-free cleaning and disinfection, the cost is remarkably reduced, and the microalgae culture efficiency and the large-scale application potential are improved.

Method and device for treating sewage by utilizing bacterium-algae heterotrophic bacterium compound system

Resumen de: CN120172566A

The invention provides a method and a device for treating sewage by utilizing a bacterium-algae heterotrophic bacterium compound system, and belongs to the technical field of water treatment and recycling. Aiming at recycling of soluble methane and diversified removal of various pollutants such as carbon dioxide, organic carbon and nutritive salt, a specific microalgae-methane-oxidizing bacteria-heterotrophic bacteria compound microorganism system is constructed, efficient removal efficiency parameters are limited, ternary microorganism synergistic interaction is achieved, and the synergistic interaction target of reducing pollution and carbon is achieved. The MBR membrane assembly is adopted to intercept microbial effluent, and a specific efficient microbial community is maintained; the closed reactor aims at a specific removal object, dissolved gas is prevented from escaping, and recycling of soluble methane is guaranteed. The closed membrane bioreactor is suitable for culturing a specific ternary suspended microflora and can effectively treat soluble gas.

Method for culturing microalgae by using beer waste liquid and application thereof

Resumen de: CN120173745A

The invention provides a method for culturing microalgae by using beer waste liquid and application of the method, and relates to the technical field of microalgae biological culture. According to the method disclosed by the invention, microalgae, especially chlorella sp. Of chlorophyta, are cultured by adopting the beer wastewater. Moreover, it is found for the first time that the effect of synergistically promoting the growth of the microalgae can be achieved when fermentation tank washing water is adopted as a nutritional ingredient to jointly culture chlorella (Chlorella sp.) FACHB-2900 and Navicula sp. FACHB-1996, and the composite microalgae can keep certain biological activity at a low temperature and also has excellent synergic cold resistance. The invention also provides a preparation method of the composite microalgae related fertilizer, and the microalgae fertilizer can be used for improving the soil performance of saline-alkali soil, and has excellent performances of promoting the growth of beet, increasing the yield and the like.

Method for determining and evaluating influence of phycosphere microenvironment on conjugational transfer capability of ARGs

Resumen de: CN120174056A

The invention discloses a method for determining and evaluating the influence of an algal microenvironment on the conjugational transfer capability of ARGs. Comprising the following steps: preparing donor bacteria, recipient bacteria and an algae solution, evaluating the influence of the density of microalgae in the interalgal microenvironment on the conjugational metastasis of ARGs, evaluating the influence of the number of binding-state bacteria in the interalgal microenvironment on the conjugational metastasis of ARGs, evaluating the influence of the EPS content in the interalgal microenvironment on the conjugational metastasis of ARGs, and evaluating the influence of the EPS component in the interalgal microenvironment on the conjugational metastasis of ARGs. According to the method, macroscopic and microscopic processes of microalgae in a water body are considered, the influence on the conjugational transfer capability of the antibiotic resistance genes of the drug-resistant bacteria in the interalgal microenvironment can be systematically and comprehensively evaluated, and the determination method can provide powerful theoretical basis and support for behavior research and use management of the antibiotic resistance genes in the water environment.

A composition for improving preventing and treating of liver cancer comprising microalgae extract

Resumen de: KR20250090554A

본 발명은 미세조류 추출물을 유효성분으로 함유하는 간암의 개선, 예방 또는 치료용 조성물에 관한 것으로, 보다 상세하게는 미세조류 추출물을 유효성분으로 포함함으로써, 간암을 개선, 예방 또는 치료할 수 있으므로, 식품 조성물, 나아가 건강기능식품 또는 약학 조성물로 활용될 수 있다.

MICROALGA CULTURING APPARATUS TO BE MOUNTED ON WALL SURFACE OF STRUCTURE, ENABLING EASY DETACHMENT OF MICROALGA

Resumen de: WO2025127340A1

The present invention relates to a microalga culturing apparatus to be mounted on a wall surface of a structure and to a microalga culturing apparatus which enables easy detachment of a microalga attached to the inner surface of a photosynthesis reactor, allows the cultured microalga to be easily harvested, and further enables increased usability.

CELL ADHESION DEVICE FOR CULTURING MICROALGAE

Resumen de: WO2025123156A1

The present invention relates to an adhesion device (1) for culturing microalgae that increases the density of microalgae cultures and their biomass productivity. The device comprises a body (2) with an upper opening that contains a culture medium (3), which occupies half of its volume; a plurality of rotary discs (4) as a supporting surface on which the microalgae cells (5) adhere, promoting their growth to form a biofilm, said plurality of discs (4) being fixed to a horizontal rotation shaft (6), which passes through the body (2), and being equally spaced apart, the location of the rotation shaft (6) inside the body (2) being such that said discs remain semi-submerged in the culture medium (3); gas-liquid diffusers for gas transfer and bubbling in the culture medium (3); at least one moisture sensor and at least one temperature sensor for monitoring the moisture and temperature, respectively, of the gas phase inside the body (2) of the device (1); at least one temperature sensor for monitoring the temperature of the culture medium (3); an upper cover (7) on the upper opening of the body (2), which prevents the culture medium (3) and microalgae cells (5) from being exposed to the outside environment; a lighting board (8) arranged between each pair of discs (4) of the plurality of discs (4), being located on the rotation shaft (6) and arranged in slots (71) in the cover (7) so that said lighting boards (8) are not in contact with the inside of the body (2); and an electric mo

CULTIVATION DEVICE

Resumen de: US2025197786A1

A cultivation device comprises a water retention part and an accommodation part. Retention water is retained in the water retention part. A cultivation liquid and a microalga are accommodated in the accommodation part. The water retention part and the accommodation part are adjacent to one another. At least one section of the accommodation part is in contact with the water retention part. A peripheral section of the accommodation part has a contact region that contacts the retention water when the retention water is retained in the water retention part, and a non-contact region that does not contact the retention water.

Quantitative feeding system for preparation of microalgae culture medium

Resumen de: CN120158363A

The invention discloses a quantitative feeding system for preparation of a microalgae culture medium, which relates to the technical field of microalgae culture and comprises a base plate, a vertical plate vertically arranged at the top of the base plate, a microalgae culture tank arranged at the top of the base plate and a culture medium preparation and supply tank, the culture medium step-by-step replacement device and the centrifuge are sequentially arranged on the outer wall of the vertical plate from top to bottom, and the step-by-step dilution device is arranged on the base plate and located at the bottom of the centrifuge. When the microalgae culture medium feeding system is used for feeding a culture medium, the culture medium is supplied in a manner of gradually replacing and adapting the culture medium and thoroughly replacing and diluting the culture medium, so that microalgae can quickly adapt to the solution concentration of a new culture medium, and normal growth and reproduction of the microalgae are facilitated.

ROTATABLE POWER SUPPLYING DEVICE USING MICROALGAE CULTURE BUBBLES AND CULTURING APPARATUS COMPRISING THE SAME

Resumen de: KR20250088251A

본 발명은 수조 내에서 부상하는 공기의 부력에 의해 상향이동하는 복수의 바스켓; 상기 복수의 바스켓이 일렬로 장착되며 공기에 의한 부력만으로 상기 바스켓의 상향이동과 함께 회전되는 바스켓 이송수단; 및 상기 바스켓 이송수단의 상단부 및 하단부에 한쌍이 결합되어 함께 회전하여 외부로 동력을 전달하는 회전동력전달부를 포함하는 미세조류 배양 기포를 이용한 수조내 회전동력장치 및 이를 포함하는 배양기를 제공한다.

Culture Method of Polar Microalgae

Resumen de: KR20250087223A

본 발명은 배양기간에 걸쳐 영양원 또는 영양원 함유 배지를 배양기에 분할투입하여 미세조류를 배양하는 것을 특징으로 하는 극지 미세조류의 배양방법을 제공한다.

Preparation of biomass carbon quantum dots and application of biomass carbon quantum dots in microalgae culture

Resumen de: CN120136080A

The invention discloses preparation of biomass carbon quantum dots with pine sawdust as a raw material and an application method of the biomass carbon quantum dots in microalgae culture. According to the method, high-yield biomass carbon quantum dots are synthesized through an alkali-assisted oxidation process, and the blue light emission characteristic of the biomass carbon quantum dots is matched with the absorption spectrum of a microalgae photosynthetic system II (PSII). The method comprises the following specific steps: pretreating pine sawdust, then carrying out hydrothermal reaction to prepare pine derived hydrothermal carbon, and then carrying out alkaline oxidation stripping on the hydrothermal carbon through NaOH and H2O2 to extract the carbon quantum dots. The prepared biomass carbon quantum dots have the advantages of high yield, excellent optical performance, good water solubility and biocompatibility. In microalgae culture, the biomass concentration of microalgae and the synthesis efficiency of protein and lipid can be remarkably improved by adding a proper amount of the carbon quantum dots, and an efficient and environment-friendly solution is provided for waste recycling and microalgae high-value culture.

Threonyl-tRNA synthetase mutant and application thereof

Resumen de: CN120137919A

The invention relates to a threonyl-tRNA synthetase mutant, proline at the 499th site of the threonyl-tRNA synthetase mutant is mutated into serine, and a reference sequence of threonyl-tRNA synthetase before mutation is as shown in SEQ ID NO: 2; the invention also relates to application of the threonyl-tRNA synthetase in improving the growth speed of cyanobacteria and a constructed fast-growing engineering strain. According to the invention, the mutation from proline to serine at the 499th site is introduced into the threonyl-tRNA synthetase gene of synechococcus PCC 7942, so that the obtained mutant strain has a faster growth speed in highlight, and the increase of the growth speed has a synergistic effect with the AtpA C252Y mutation. Therefore, the growth speed of the synechococcus can be greatly improved by performing corresponding genetic modification on the synechococcus, and the yield of the microalgae and the target compound can be improved by using the mutant strain as the chassis algae for metabolic modification and production of the target compound.

Microalgae feed and preparation method thereof

Resumen de: CN120130570A

The present invention provides a microalgae feed and a preparation method thereof, and relates to the technical field of animal feeds, the microalgae feed comprises 25% of microalgae powder, 30% of a protein source, 40% of a carbohydrate source and 30% of a mineral substance mixture based on the total weight of the feed, and the mineral substance mixture comprises the following components in percentage by weight: 25% of the microalgae powder, 30% of the protein source, 40% of the carbohydrate source and 40% of the mineral substance mixture based on the total weight of the feed. The content of the mineral substance mixture accounts for 5% of the total weight of the feed, the comprehensiveness and balance of feed nutrition are ensured through the elaborate proportioning of the protein source, the carbohydrate source and the mineral substance mixture, various nutritional requirements of animals in different growth stages are met, healthy growth and development of the animals are promoted, and through the analysis of intestinal flora, the health of the animals is promoted. According to the present invention, the number of the beneficial bacteria such as bifidobacteria and lactic acid bacteria in the animal intestinal tract fed with the microalgae feed is substantially increased, the positive effect is provided on the improvement of the animal intestinal flora, the efficient utilization of the feed reduces the emission of nitrogen, phosphorus and other pollutants in the excrement,

NdhE mutant and application thereof

Resumen de: CN120137921A

The invention relates to an NAD (P) H dehydrogenase subunit gene ndhE mutant capable of increasing the growth speed of cyanobacteria. A section of amino acid with the sequence shown as SEQ ID NO: 5 is added to the tail of a coded protein; the invention also relates to application of the ndhE mutant in improving the growth speed of cyanobacteria and a constructed fast-growing engineering strain. According to the invention, ndhE of synechococcus PCC 7942 is mutated, so that a section of amino acid with a sequence as shown in SEQ ID NO: 5 is added at the tail of a protein coded by the synechococcus PCC 7942, the obtained mutant strain has a faster growth speed in highlight, and the increase of the growth speed has a synergistic effect with AtpA C252Y mutation. Therefore, the growth speed of the synechococcus can be greatly improved by performing corresponding genetic modification on the synechococcus, and the yield of the microalgae and the target compound can be improved by using the mutant strain as the chassis algae for metabolic modification and production of the target compound.

Thermal power plant wastewater resource utilization system and method based on microalgae technology

Resumen de: CN120136346A

The invention provides a power plant wastewater resource utilization system based on a microalgae technology, which comprises a wastewater pretreatment unit: a microalgae culture unit which is provided with a culture pond or a reactor, introduces pretreated high-concentration wastewater into the culture pond or the reactor, and inoculates microalgae for culture; the harvesting and extracting unit is used for harvesting the microalgae after the microalgae grow to a certain stage; and the wastewater reflux and reutilization unit is used for further treating the wastewater after microalgae culture, removing residual microalgae cells and metabolites, and then refluxing the wastewater to a power plant for reutilization or up-to-standard discharge. The invention aims to convert inorganic pollutants such as nitrogen, phosphorus and the like in the wastewater discharged by the power plant into valuable biomass resources.

Raw material composition of thermoplastic product mixed with microalgae, product and preparation method thereof

Resumen de: CN120153024A

The invention relates to a raw material composition of a thermoplastic product mixed with microalgae, the product and a preparation method, the composition comprises polyvinyl alcohol, microalgae, a compatilizer, a plasticizer, a cross-linking agent, a reaction auxiliary agent and a lubricant, the weight percentage of the microalgae is between 10% and 30% based on the weight of the polyvinyl alcohol, and the weight percentage of the compatilizer is between 10% and 30% based on the weight of the plasticizer. The weight percentage of the compatible agent is between 2% and 5% based on the weight of the polyvinyl alcohol, the weight percentage of the plasticizer is between 20% and 30% based on the weight of the polyvinyl alcohol, and the weight percentage of the cross-linking agent is between 0% and 1.5% based on the weight of the polyvinyl alcohol. The weight percentage of the reaction auxiliary agent based on the weight of the polyvinyl alcohol is between 1% and 5%, and the weight percentage of the lubricant based on the weight of the polyvinyl alcohol is between 0.1% and 0.5%.

Culture method of blue-green bacteria

Resumen de: CN120137811A

The invention discloses a culture method of blue-green bacteria. The culture method of the blue-green bacteria comprises the following steps: providing the blue-green bacteria, and carrying out physical mutation treatment on the blue-green bacteria to obtain primary mutation blue-green bacteria. And carrying out chemical mutation treatment on the primary mutated cyanobacteria to obtain secondary mutated cyanobacteria. And carrying out a temperature resistance test and an environment resistance test on the secondary mutation cyanobacteria to obtain the target cyanobacteria. The fatality rate of the physical mutation treatment is 50-80%, and the fatality rate of the chemical mutation treatment is 40-55%. The blue-green bacteria with high temperature resistance and industrial waste gas resistance can be obtained through the culture method of the blue-green bacteria provided by the invention.

Marine microalgae efficient gene editing system as well as construction method and application thereof

Resumen de: CN120137975A

The invention discloses a marine microalgae efficient gene editing system as well as a construction method and application thereof. An efficient'all-in-one 'CRISPR/CAS9 expression vector pKSdiaCas9-sgRNAble is constructed by inserting an expression cassette of a bleomycin resistance gene ble into a pKSdiaCas9sgRNA plasmid, meanwhile, four gRNAs targeting different sites of the same gene are respectively designed to obtain four CRISPR/CAS9'all-in-one' plasmids, and the four CRISPR/CAS9'all-in-one 'plasmids are co-transformed into algae cells, so that the total editing probability and the probability of homozygote mutation are greatly improved. Through optimization of a gene editing tool, improvement of a gene gun transformation method and an identification strategy of a genome level, efficient and stable marine microalgae gene editing is realized, and an important technical support is provided for microalgae gene function research and application.

KaiA gene mutant and application thereof

Resumen de: CN120136984A

The invention relates to a kaiA gene mutant capable of improving the growth speed of cyanobacteria, the 266th-273rd amino acids are shown as SEQ ID NO: 5, and the 274th amino acids and the amino acids behind the 274th amino acids are deleted; the invention also relates to application of the kaiA gene mutant in improving the growth speed of cyanobacteria and a constructed fast-growing engineering strain. According to the invention, the kaiA gene of synechococcus PCC 7942 is mutated, so that the 266th-273rd amino acids of the coded protein are changed, and the 274th and subsequent amino acids are deleted, so that the obtained mutant strain has a faster growth speed, and the increase of the growth speed has a synergistic effect with AtpA C252Y mutation. Therefore, the growth speed of the synechococcus can be greatly improved by performing corresponding genetic modification on the synechococcus, and the yield of the microalgae and the target compound can be improved by using the mutant strain as the chassis algae for metabolic modification and production of the target compound.

Bile shellfish breeding method and bile shellfish breeding system

Resumen de: CN120130411A

The invention provides a gall shell culture method and a gall shell culture system. The bile shell culture method provided by the invention comprises the following steps: putting culture effluent of a bile shell culture pond into a microalgae treatment pond, culturing chaetoceros mulleri in the microalgae treatment pond, and carrying out primary treatment on the culture effluent to obtain primarily treated tail water; the tail water obtained after primary treatment is put into a secondary treatment pond, probiotics are added, the tail water obtained after primary treatment is subjected to secondary treatment through the probiotics, and tail water obtained after secondary treatment is obtained; the tail water subjected to secondary treatment is put into a gall shell culture pond to be used for culturing gall shells, and water circulation is achieved; wherein chaetoceros mulleri is in logarithmic growth in the microalgae treatment pond, the chaetoceros mulleri is food for breeding the gall-bladder, and ammonia nitrogen in the breeding effluent is removed while the chaetoceros mulleri grows, so that the content of the ammonia nitrogen in the tail water subjected to primary treatment meets the requirement of breeding the gall-bladder; the probiotics are used for removing nutrient substances which cannot be absorbed by the microalgae in the primarily treated tail water.

METHOD FOR CULTIVATING CYANOBACTERIA

Resumen de: US2025188443A1

A method for cultivating cyanobacteria includes: providing the cyanobacteria; subjecting the cyanobacteria to physical mutagenesis, so as to obtain primary mutant cyanobacteria; subjecting the primary mutant cyanobacteria to chemical mutagenesis, so as to obtain secondary mutant cyanobacteria; and subjecting the secondary mutant cyanobacteria to a temperature resistance test and an environment resistance test, so as to obtain target cyanobacteria. A fatality rate of the physical mutagenesis ranges between 50% and 80%, and a fatality rate of the chemical mutagenesis ranges between 40% and 55%.

METHOD FOR HARVESTING MICROALGAE AND EXTRACTING USEFUL MICROALGAE PRODUCTS USING ULTRATHIN ANISOTROPIC MAGNETIC NANOPARTICLES

Resumen de: KR20250085071A

본 발명은 미세조류가 포함된 용액에 표면에 양전하가 유도된 초박형 자성 나노입자를 첨가한 후 혼합하여 자성 나노입자-미세조류 응집체를 형성하는 제1 단계, 상기 자성 나노입자-미세조류 응집체가 포함된 혼합용액을 초음파 처리하는 제2 단계, 상기 초음파 처리된 혼합용액에 지질추출용매를 처리하여 미세조류가 생산한 유용 물질 및 지질을 추출하는 제3 단계 및 자석을 이용하여 상기 초음파 처리된 혼합용액에서 상기 자성 나노입자를 회수하는 제4 단계를 포함하는 초박형 자성 나노입자를 이용한 미세조류의 수확 및 미세조류가 생산한 유용 물질 및 지질의 추출 방법을 개시하며, 상기 제2 단계 동안, 상기 초박형 자성 나노입자가 상기 미세조류의 세포벽을 기계적으로 파쇄하여 세포벽 내에 있는 미세조류가 생산한 유용 물질 및 지질을 추출하는 것을 특징으로 한다.

IMPROVEMENT OF NUTRITIONAL VALUE OF FISH FEED

Resumen de: EP4566457A1

This invention relates to optimization of standard fish feed by incorporating a c-phycocyanin additive into a standard fish feed in an oil suspension. Isolated c-phycocyanin, which is isolated from the biomass of the genus Microcystis (microalgae) and Aphanizomenonflos-aquae (Klamath algae), improves the physiological parameters, growth intensity and physical/chemical meat properties of rainbow trout (Oncorhynchus mykiss) and African catfish (Clarias gariepinus).

Method for treating acidic organic wastewater by using mixed algae and application thereof

Nº publicación: CN120117754A 10/06/2025

Solicitante:

GUANGXI UNIV
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Resumen de: CN120117754A

The invention discloses a method for treating acidic organic wastewater by using mixed algae. The method comprises the following steps: (1) inoculating and culturing filamentous algae in the acidic organic wastewater; (2) culturing the filamentous algae in the acidic organic wastewater for 6 days, and then adding streptozotoci or/and Widdersonia with the same algae cell concentration to carry out cooperative treatment or gradient treatment on the acidic organic wastewater; (3) fishing algal biomass in the wastewater after the co-treatment or gradient treatment is performed for 6 days; and (4) detecting parameters of the acidic organic wastewater, and judging whether cooperative treatment or cascade treatment needs to be carried out again according to the detected parameters. The obtained algae biomass is used as feed. The method has the innovation points that filamentous algae and high-stain-resistance streptazone algae or/and high-nutrient-value widmannella are subjected to mixed culture in the acidic organic wastewater by adopting a synergistic treatment or gradient treatment mode, so that high-yield algae biomass is obtained while the acidic organic wastewater is treated; an efficient, stable, economical and feasible microalgae wastewater treatment system is realized.