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Filamentous microalgae with rapid ball gathering and settling characteristics as well as screening method and application of filamentous microalgae

Resumen de: CN121931007A

The invention belongs to the technical field of microalgae biology, and particularly discloses filamentous microalgae with rapid ball gathering and settling characteristics as well as a screening method and application of the filamentous microalgae. The preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) NO. 46950 The invention also discloses a screening method of the algal strain, and the method comprises the following steps: sampling from the surface of water body sediment, applying settling time pressure in a stepped manner, carrying out enrichment culture, and finally obtaining a purified algal strain by combining a single algal filament picking and purifying technology which extends according to the phototropism of filamentous microalgae. The algal strain can spontaneously form dense algal balls in the growth process, sedimentation is completed within a short time (the sedimentation rate reaches 90% within 10 min), and the harvesting cost and energy consumption in the algae culture process are greatly reduced. The algal strain can be used in the fields of sewage treatment, high-value product production, feed, biomass energy and the like, and has a wide market application prospect.

Microalgae biofilm carrier with conductive coating as well as preparation method and application of microalgae biofilm carrier

Resumen de: CN121931093A

The invention discloses a microalgae biofilm carrier with a conductive coating as well as a preparation method and application of the microalgae biofilm carrier, and relates to the field of efficient culture of microalgae and resource treatment of wastewater. The microalgae biofilm carrier comprises a surface tension regulator modified substrate and a conductive active layer loaded on the surface of the substrate, and the conductive active layer comprises defect type UiO-66 (Zr)-NH2, a conductive agent and a surface tension regulator. The microalgae biofilm carrier has stronger surface tension, is more beneficial to attachment of microalgae organisms, can improve the extracellular electron transfer efficiency of the microalgae and the photosynthesis rate of the microalgae, and promotes rapid formation of the microalgae biofilm.

Immobilized microalgae purification mariculture tail water treatment system

Resumen de: CN121929876A

The invention discloses an immobilized microalgae purification mariculture tail water treatment system, which relates to the technical field of mariculture tail water treatment, and comprises a pretreatment unit, a core photo-biological purification unit and a deep treatment unit, the high-tolerance microalgae subjected to gradient domestication are embedded in the magnetic nanoparticle modified high polymer material, the formed magnetic immobilized microalgae complex is high in mechanical strength and excellent in settling performance, online recovery and backflow of lost microalgae can be achieved by combining a magnetic separation and recovery device, the operation cost is greatly reduced, secondary pollution is avoided, and the method is suitable for industrial production. A hollow optical fiber light guide aeration assembly with light-transmitting micropores is adopted, sunlight is accurately guided into the deep layer of the tail water, and meanwhile, microbubbles escape from the optical fiber micropores to form light-gas coaxial release, so that the technical bottlenecks of insufficient illumination and low mass transfer efficiency of the deep water body are effectively solved; in addition, the pretreatment unit adopts a nitrifying flora-loaded modified charcoal adsorption bed, so that a high-quality nitrogen source is provided for subsequent microalgae, and the starting time of the system is remarkably shortened.

Method for producing recombinant spider silk protein based on microalgae photosynthetic expression and non-chromatographic purification, recombinant spider silk protein and application

Resumen de: CN121931172A

The invention discloses a method for producing recombinant spider silk protein based on microalgae photosynthetic expression and non-chromatographic purification, the recombinant spider silk protein and application, and belongs to the technical field of recombinant spider silk protein production. The method comprises the following steps: designing a target recombinant spider silk protein structure, taking a spider dragline silk protein repetitive unit as a core, matching with an end-side elastin structural domain, inserting an amber termination codon TAG at a specified glycine site of the repetitive unit, and introducing non-natural amino acid containing a click chemical functional group by virtue of a gene codon extension technology; the method comprises the following steps: artificially synthesizing an optimized gene expression cassette, constructing a chlamydomonas reinhardtii expression system, synchronously constructing an unnatural amino acid insertion system, co-transforming the gene expression cassette and the unnatural amino acid insertion system into chlamydomonas reinhardtii, screening positive clones, carrying out photosynthetic culture induced expression, and carrying out pH-induced reversible phase separation in combination with magnetic nanoparticle click chemical non-chromatographic purification. Finally, the high-purity recombinant spider silk protein is prepared, and a technical basis is provided for industrialization of biological materials.

Water quality purification phycomycete composition, water quality purification system and application

Resumen de: CN121930977A

The invention discloses a water quality purification phycomycete composition, a water quality purification system and application, and belongs to the technical field of water treatment and ecological restoration. The phycomycete composition for water quality purification comprises mixed microalgae and a composite flora, the mixed microalgae comprise chlorella sorojin, chlorella vulgaris, chlorella pyrenoidosa, chlamydomonas reinhardtii and chlamydomonas plana; the composite flora comprises bread yeast, bacillus subtilis, bacillus amyloliquefaciens, bacillus licheniformis and pseudomonas putida. According to the invention, dominant algae species in an in-situ water body and external composite flora are combined as a water quality purification phycomycete composition, so that not only is the removal efficiency of nutritive salt improved, but also the increase of microalgae biomass is promoted by improving the phycomycete microbial environment and adjusting the ecological structure. The phycomycete composition disclosed by the invention can be directly used for in-situ treatment of rivers in cold regions, is directly arranged in rivers, bank zones or constructed wetlands, and overcomes the defect that a traditional process is difficult to efficiently and stably operate in treatment of rivers in cold regions.

Microbial agent for improving content of milk nervonic acid and preparation method thereof

Resumen de: CN121930971A

The invention particularly relates to a microbial agent for increasing the content of nervonic acid in milk and a preparation method thereof, the microbial agent comprises functional microbial thalli and a composite protective agent, the functional microbial thalli are microorganisms capable of synthesizing nervonic acid or a direct precursor thereof, are selected from natural isolated strains or genetic engineering modified strains, and cover saccharomycetes, bacteria, microalgae or fungi; the composite protective agent takes feed-grade lactose as a matrix and contains skim milk powder and glutamic acid, and the composite protective agent comprises the following components in percentage by weight: 75-85% of feed-grade lactose, 10-20% of skim milk powder and 3-7% of glutamic acid. The mixing mass ratio of the composite protective agent to the functional microorganism thalli is 1: (0.8-1.2); and the survival rate of functional microorganisms stored at normal temperature for 12 months is greater than or equal to 80%. After mammals are continuously fed with the microbial inoculum for 4 weeks, the nervonic acid content in milk is increased by 3-5 times compared with a control group, the DHA content is not obviously changed, the total fatty acid content is stable, and the directional enrichment effect of nervonic acid is clear and is not a passive result of increase of the total fatty acid content.

Microalgae seed bottle placing platform

Resumen de: CN224172735U

The utility model relates to the technical field of biological experiment equipment, and discloses a microalgae seed bottle placing platform which comprises a bottom shell, an inclined mechanism is arranged in the bottom shell, the inclined mechanism comprises a supporting plate, and a rotating rod is rotationally installed on the inner wall of the supporting plate. According to the microalgae seed bottle placement platform, a first motor operates to drive a connecting shaft to rotate so as to drive a second bevel gear to rotate, the second bevel gear drives a first bevel gear to rotate, the first bevel gear drives a fixed rod to rotate so as to drive a worm to rotate, and the worm rotates to drive a worm gear to rotate so as to drive a rotating rod to rotate; the rotating rod drives the angle of the connecting plate to be adjusted so as to drive the connecting shell to incline, through the arrangement of the structure, different inclination angles needed by the algae seed bottle can be effectively adjusted, the algae seed bottle can be fixed to prevent the algae seed bottle from toppling over due to collision, and the problems proposed in the background technology are solved.

Eel feed using schizochytrium microalgae and method for producing same

Resumen de: CN121941418A

The present invention relates to a feed composition for eels, the composition comprising a biomass derived from microalgae of the genus Schizochytrium, and a method for culturing eels using the composition. When an eel feed composition containing a biomass derived from a microalgae belonging to the genus Schizochytrium is supplied to an eel, the growth of the eel is promoted, and thus the biomass can be advantageously used as a feed composition or a feed additive for the eel.

Photobioreactor for microalgae cultivation

Resumen de: KR20260056673A

본 발명은 미세조류 배양용 광생물 반응기에 관한 것으로서, 더욱 상세하게는 배양공간으로 유입되는 기체에 와류를 발생시켜 미세조류를 순환시킴으로써 미세조류의 배양효율을 향상시킬 수 있는 미세조류 배양용 광생물 반응기에 관한 것이다. 본 발명은 배양공간 내의 배양액과 배양액 내의 미세조류에 상승류 및 와류를 발생 및 배양공간 내에서 순환시킴으로써, 배양액 및 미세조류가 이산화탄소가스와 태양광을 균일하게 공급받을 수 있도록 하여 배양효율을 향상시킬 수 있다. 또한, 본 발명은 주기적 또는 비주기적으로 배양액 내의 상승류 및 와류 형태를 변화시켜 미세조류가 일정 부분에서 체류하는 것을 방지 및 서로 뭉치지 않고 분산된 형태로 순환되게 함으로써 이산화탄소가스 및 태양광을 균일하게 공급받을 수 있도록 하여 배양효율을 향상시킬수 있다.

Method for industrially and stably producing golden spirulina

Resumen de: CN121914900A

The invention discloses a method for industrially and stably producing golden spirulina, and belongs to the technical field of microalgae biology. The method comprises the following steps: preparing a culture solution special for golden spirulina, inoculating spirulina into the culture solution special for golden spirulina for culture, performing partial harvesting when the harvesting standard is reached, then calculating the nitrogen source supplementing amount according to the wet weight of the harvested spirulina and the total sugar content obtained by detection, and supplementing a nitrogen source. And continuously culturing under the same culture condition, partially harvesting when the harvesting standard is reached, calculating the nitrogen source supplementing amount by adopting the same method as the previous method, supplementing the nitrogen source, repeating the steps, and drying the harvested spirulina in time to obtain the golden spirulina powder. The method has the advantages that the produced golden spirulina is light in fishy smell and easy to accept by consumers, the content of functional alpha-glucan is high, and the method has very important significance on production and application of spirulina alpha-glucan.

Aldehyde cationic starch as well as preparation method and application thereof in microalgae flocculation

Resumen de: CN121914298A

The invention discloses aldehyde cationic starch, a preparation method thereof and application of the aldehyde cationic starch in microalgae flocculation, and belongs to the technical field of water treatment and biomass resource utilization. Natural starch is subjected to cationization modification, aldehyde functional groups are further introduced, and the aldehyde cationic starch is prepared; and adding the obtained aldehyde cationic starch serving as a flocculating agent into a water body containing microalgae, and realizing rapid aggregation and settling separation of the microalgae under stirring and standing conditions. By utilizing the electrostatic neutralization effect of cationic groups and the chemical crosslinking/hydrogen bond synergistic effect of aldehyde functional groups, the aldehyde cationic starch remarkably improves the flocculation rate and removal efficiency of microalgae, has biodegradability and environmental friendliness, and is suitable for the scenes of microalgae biomass collection, algae wastewater treatment and the like.

Haematococcus pluvialis intelligent culture system and method for resource utilization of waste biogas slurry

Resumen de: CN121914846A

The invention relates to the technical field of microalgae culture, in particular to an intelligent haematococcus pluvialis culture system and method for waste biogas slurry resource utilization, and the system comprises a biogas slurry collection module which is used for collecting waste biogas slurry; the biogas slurry treatment and culture medium preparation module is used for carrying out treatment and nutrition blending on waste biogas slurry to prepare a culture medium special for haematococcus pluvialis; the modular culture unit is used for bearing a special culture medium and culturing haematococcus pluvialis for green growth of algae cells; the intelligent control module is used for receiving real-time monitoring data in the breeding process and dynamically optimizing key parameters such as illumination, temperature, pH, gas flow and nutrition supply through a self-adaptive algorithm; the induction harvesting module is used for applying multiple stress to the high-density algae liquid to induce astaxanthin accumulation, and algae mud is collected through a secondary harvesting system. Therefore, the problems of high production cost, low culture efficiency and the like in the prior art are solved.

FOOD COMPOSITION

Resumen de: WO2026082581A1

The present invention relates to a food composition comprising (a) microalgal biomass material, said biomass material comprising at least 5 wt% of microalgal protein by weight of dry matter of the microalgal biomass, wherein the microalgal biomass material is in the form of non-lysed single cells and/or clusters of non-lysed single cells, with a particle size (D4,3) of 2 µm to 100µm, as measured upon redispersion in an aqueous medium at a concentration of 3 wt-% of microalgal biomass material by total weight of the aqueous medium and the microalgal biomass; and (b) a creamer system, comprising a lipid, a carbohydrate carrier; and optionally an emulsifier.

A METHOD FOR PREPARING AND SELECTING A POLYMERIC FLOCCULANT FOR USE IN HARVESTING MICROALGAE

Resumen de: US20260109936A1

The present invention relates to a method for harvesting microalgae, the method comprising (i) mixing one or more monomers, a photoinitiator, water and a deoxygenation system to form a mixture; (ii) exposing the mixture to UV light so as to form an aqueous solution of one or more polymers; (iii) introducing the aqueous solution of one or more polymers to a suspension comprising microalgae in an amount sufficient to produce flocculated microalgae; and (iv) harvesting the flocculated microalgae. The present invention also relates to a method for preparing and selecting a polymeric flocculant for use in harvesting microalgae and a related apparatus.

Microalgae-mediated power generation energy storage and sewage purification coupling device

Resumen de: CN224147858U

The utility model relates to the technical field of environmental protection and new energy, and particularly discloses a microalgae-mediated power generation energy storage and sewage purification coupling device which comprises a microalgae sewage treatment mechanism and a microalgae biological fuel cell coupling mechanism assembled on one side of the microalgae sewage treatment mechanism, the microalgae sewage treatment mechanism comprises a supporting frame and a supporting seat, an S-shaped glass tube is fixedly mounted on the inner wall of the supporting frame, reflecting covers corresponding to the S-shaped glass tube are fixedly mounted at the front end and the rear end of the supporting frame, and a reactor is fixedly mounted at the top of the supporting seat; pollutants in sewage can be absorbed in the snakelike glass pipeline through microalgae to purify the sewage, meanwhile, the treated microalgae biomass is conveyed into the microalgae biofuel cell coupling mechanism, chemical energy is converted into electric energy, power can be generated in the sewage treatment process, and the sewage treatment efficiency is improved. Economical and efficient sewage purification and energy production are effectively realized.

Medium additive for culturing aquatic cell comprising edible microalgae extract

Resumen de: KR20260053790A

본 발명은 식용 미세조류 추출물을 포함하는 수산물 세포 배양용 배지 첨가제에 관한 것으로, 보다 상세하게는 수산물 세포 배양 및 증식에 필요한 동물 혈청을 대체할 수 있는 식용 미세조류 추출물을 포함하는 수산물 세포 배양용 배지 첨가제, 이를 포함하는 수산물 세포 배양용 배지 조성물 및 이를 이용한 수산물 세포 배양 방법에 관한 것이다. 본 발명의 수산물 세포 배양용 배지 첨가제 및 이를 포함하는 조성물을 이용하면, 동물 혈청의 첨가량을 현저하게 감소시키면서도 동물 혈청을 포함한 배지와 동등하거나 더 높은 수준으로 수산물 세포의 성장을 유도하고 증식을 촉진하는 효과가 있다.

Microalgae culture system

Resumen de: TWM682357U

0001 本創作提供一種微藻養殖系統，包括：一微藻供應槽，用以儲放一混合液；一氣體供應槽，用以儲放二氧化碳；一氣液混合槽，連接該微藻供應槽及該氣體供應槽；一磁力驅動器，設置於該氣液混合槽的下方；一光反應槽，連接該氣液混合槽；以及一控制模組，用以控制該微藻供應槽及該氣體供應槽連通或不連通該氣液混合槽，以及控制該磁力驅動器及該光反應槽運作或停止，使該混合液在該氣液混合槽與該光反應槽之間進行循環。藉此，本創作的微藻養殖系統係可以達到提供低剪切力、雙向流動的用途。

Marine single-cell microalgae breeding and culturing device

Resumen de: CN121896077A

The invention belongs to the technical field of microalgae cultivation, and particularly relates to an ocean single-cell microalgae breeding and culturing device which comprises a culturing tank, an upper sealing plate is fixedly mounted on the inner wall of the culturing tank, a plurality of gas guide pipes are uniformly and fixedly mounted on the inner wall of the upper sealing plate, one end of each gas guide pipe is fixedly provided with a one-way exhaust valve, and the other end of each gas guide pipe is fixedly provided with an air outlet valve. The one-way exhaust valves are arranged above the upper sealing plate, a carbon dioxide supply pipe is fixedly mounted on the inner wall of the culture tank, the height of the carbon dioxide supply pipe is lower than that of the upper sealing plate, and a sealing assembly is arranged below the upper sealing plate. Carbon dioxide is sprayed out from all the one-way exhaust valves at the same time, the carbon dioxide is prevented from being intensively released from one or a few fixed points through the design, the carbon dioxide can be more evenly dispersed to all areas of the culture tank, and the problem that the local carbon dioxide concentration is too high or too low possibly caused by a traditional air supply mode is effectively solved.

Carbon sequestration and microalgae product co-production system based on double-zone glass tube reactor

Resumen de: CN121873954A

The invention discloses a carbon sequestration and microalgae product co-production system based on a double-zone glass tube reactor, which comprises a CO2 absorption glass tube used for enabling an absorption liquid to be in countercurrent contact with CO2-containing gas; the CO2 absorption glass tube is a glass tube which is vertically arranged; an aeration disc for introducing CO2-containing gas is arranged at the bottom of the CO2 absorption glass tube; the microalgae culture glass tube is used for culturing microalgae by adopting absorption liquid; the bottom of the microalgae culture glass tube is connected with the bottom of the CO2 absorption glass tube; a microalgae separation device is arranged at the top of the microalgae culture glass tube, and microalgae products are obtained through separation of the microalgae separation device. According to the system, through the collaborative design of a vertical absorption area and an inclined culture area, and in combination with countercurrent absorption, enzyme catalysis enhancement, gradient aeration and photo-thermal regulation and control technologies, the CO2 absorption efficiency is improved, and the content of microalgae high-value products is increased. The method is suitable for recycling food-grade CO2 and industrial production of phycocyanin, beta-carotene and other products.

Microalgae suspension culture system and method based on turbid circulating water carbon source

Resumen de: CN121873927A

The invention discloses a microalgae suspension culture system and method based on a turbid circulating water carbon source, and the system comprises a material supplementing unit which is used for pretreating turbid circulating water and mixing the pretreated turbid circulating water with a culture medium to obtain a carbon source adaptive culture medium in which the HCO3 <->/CO2 carbon source accounts for more than or equal to 60%; the intelligent vortex reactor is used for providing culture conditions for the carbon source adaptive culture medium and carrying out mixotrophic culture; the AI optimization reflux system is used for monitoring the microalgae density in the intelligent vortex reactor in real time and maintaining the biomass concentration in the microalgae suspension culture system by dynamically adjusting the reflux ratio based on the microalgae density monitored in real time; and the multi-mode cooperative control system is used for controlling the AI optimization backflow system to dynamically adjust the backflow proportion. By utilizing the suspension culture system, various problems of the existing suspension culture system can be solved.

Intelligent light control and nutrition circulation microalgae high-density culture equipment

Resumen de: CN121873928A

The invention relates to the technical field of microalgae culture, in particular to intelligent light control and nutrition circulation microalgae high-density culture equipment which comprises a culture tank and a tank cover detachably connected to the opening end of the culture tank, and further comprises an LED lamp panel provided with a plurality of lamp beads and arranged on one side of the culture tank; the reflecting plate is arranged on the other side of the culture tank; the light changing coating is pre-arranged on the light reflecting plate; the rotating sleeve is rotationally connected to the outer wall of the culture tank, and the LED lamp panel and the reflector are both fixedly connected to the rotating sleeve; by means of blue light emission, red light conversion and cyclic reflection, multi-layer efficient utilization of light energy is achieved, the light energy utilization rate is improved, energy consumption is reduced, meanwhile, the rotating sleeve drives the LED lamp panel and the reflector to rotate around the tank, illumination distribution in the tank is more uniform, growth difference of microalgae due to uneven illumination is effectively avoided, and the microalgae culture density and quality are improved.

Microalgae cookies and preparation method thereof

Resumen de: CN121867254A

The invention discloses a microalgae cookie which comprises the following components in parts by weight: 40-50 parts of a structural fat composition, 20-30 parts of microalgae powder and 110-120 parts of weak strength flour, the structural fat composition is obtained by mixing premixed gel and emulsion gel, the premixed gel is obtained by carrying out a cross-linking reaction on microalgae powder and vital gluten, and the emulsion gel is obtained by mixing a mixed aqueous solution of gelatin and grape seed polyphenol with an oil phase composed of vegetable oil and glycerin monostearate. The microalgae cookies disclosed by the invention can still keep good plasticity, excellent sense, oxidation stability and high nutritional characteristics under the condition of high algae powder content, and particularly, the spreading degree of the cookies is low, the whole finished product is crisper, the taste and the mouth feel are closer to those of pure butter cookies, and the microalgae cookies are free of algae fishy smell. The cookies also have excellent oxidation stability, can effectively prolong the storage life of a normal-temperature shelf, and do not need additional antioxidants. The microalgae cookies are high in unsaturated fatty acid content, protein content and dietary fiber content, low in saturated fat content and excellent in comprehensive nutritional quality.

Phycomycete symbiotic treatment method for purifying antibiotic resistance genes in swine wastewater

Resumen de: CN121873974A

The invention discloses a phycomycete symbiotic treatment method for purifying antibiotic resistance genes in swine wastewater, and relates to the technical field of pollution ecology, and the phycomycete symbiotic treatment method comprises the following steps: S1, expanding culture of microalgae and expanding culture domestication of fungi to obtain a microalgae expanding culture substance and a fungi expanding culture substance in a logarithmic phase; s2, establishment of a microalgae-fungus symbiont: respectively washing, precipitating and resuspending the microalgae expanding culture substance and the fungus expanding culture substance in the logarithmic phase to obtain a microalgae suspension and a fungus suspension, mixing the microalgae suspension and the fungus suspension, and performing shake cultivation for 7 days to obtain the microalgae-fungus symbiont; the temperature of the shake cultivation is 25 +/-2 DEG C, and the rotating speed is 150rpm; and S3, adding the microalgae-fungus symbiont into the swine wastewater, and alternately culturing for 10 days under light and dark conditions. According to the method, a mutualistic symbiotic relationship between microalgae-fungus communities is fully established through proper environmental parameter setting and nutrition supply, and the constructed phycomycete communities have a relatively strong synergistic effect, have a very strong capability of reducing ARGs, and are suitable for popularization.

METHOD FOR PRODUCING BIOMASS FROM A CYANOBACTERIA (Machine-translation by Google Translate, not legally binding)

Resumen de: ES3063464A2

The invention relates to a method for producing microalgal biomass, wherein the method comprises cultivating the microalga in a diluted seawater effluent, the microalga being selected from the group consisting of one strain of Nodularia, two strains of Nodularia, one strain of Nodularia with one strain of Chrysoreinhardia, two strains of Nodularia with one strain of Chrysoreinhardia, one strain of Nodularia with one strain of Halochlorella, two strains of Nodularia with one strain of Halochlorella, one strain of Nodularia with one strain of Halochlorella and one strain of Chrysoreinhardia, and two strains of Nodularia with one strain of Halochlorella and one strain of Chrysoreinhardia. The invention also relates to a method for remediating an effluent, wherein the method comprises cultivating a microalga of the invention in the diluted seawater effluent. (Machine-translation by Google Translate, not legally binding)

SYSTEM FOR EXTRACTION OF CARBON DIOXIDE FROM THE ATMOSPHERE AND ITS SUBSEQUENT UTILIZATION IN A MICROALGAE BIOREACTOR

Nº publicación: BG5342U1 15/04/2026

Solicitante:

IKIS SL OOD [BG]
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Resumen de: BG5342U1

This utility model relates to a system for extracting carbon dioxide from the atmosphere and its subsequent utilization in a bioreactor with microalgae, intended for application in the field of environmental technologies and nature conservation. The created system includes a fan housing with an integrated fan (1), in which a filter cartridge with a carbon dioxide absorbent (2) is mounted. The filter cartridge with carbon dioxide absorbent (2) is connected to a compressor station (3), which is connected to a pressure vessel (4). The pressure vessel (4) is connected to a carbon dioxide mixing tank with nutrient solution (5), which is connected to the microalgae bioreactor (6). The microalgae bioreactor (6) is constructed from multiple transparent tubes to which LED lighting fixtures (7) are mounted. The microalgae bioreactor (6) is connected to a separator (8), which is connected to a biomass tank (9) and to the carbon dioxide mixing tank with nutrient solution (5).