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167
results.
Updated on
07/07/2025 [14:50:00]
Results 125 to 150 of 167
Absstract of: CN119709412A
The invention discloses an EMS-ARTP compound mutation chlorella pyrenoidosa mutant strain and an application thereof. The preparation method comprises the following steps: mutagenizing a chlorella pyrenoidosa mutant strain CX41 by adopting an ethyl methanesulfonate (EMS) and normal-pressure and room-temperature plasma (ARTP) composite technology, screening and verifying to obtain a golden yellow chlorella pyrenoidosa mutant strain, naming the golden yellow chlorella pyrenoidosa mutant strain as chlorella pyrenoidosa Y11, and screening and verifying the golden yellow chlorella pyrenoidosa Y11 to obtain the chlorella pyrenoidosa Y11. The strain is preserved in Guangdong Microbial Culture Collection Center (GDMCC) on the fifth floor of the building 59, No. 100 courtyard, Xianlie Middle Road, Guangzhou on October 23, 2024, and the preservation number is GDMCC No: 65324. The chlorella pyrenoidosa mutant strain Y11 has the characteristics of high yield of protein and rich carotenoids, and can be used for fermentation production of microalgae protein and carotenoids.
Absstract of: CN119709413A
The invention discloses a culture medium for realizing large-scale and low-cost growth of microalgae. The culture medium comprises the following raw materials: 0.25-2.5 g/L of water-soluble fertilizer; 25 to 150 mg/L of magnesium sulfate; 10 to 100 mg/L of calcium chloride; 0-80 mg/L of sodium carbonate; and trace elements. According to the culture medium, the production cost of microalgae is reduced, the stability of a formula is improved, and large-scale production in the microalgae industry can be realized, so that the biomass of various microalgae and the accumulation of bioactive substances are improved. Compared with traditional formulas such as BG11, BBM and HUT, the culture cost of the culture medium for producing 1 ton of algae powder is reduced by 30%-60% through accounting. The culture medium provided by the invention has the advantages that the growth speed of the microalgae is increased, the capability of promoting bioactive substances (grease, protein, astaxanthin and polysaccharide) synthesized by the microalgae is improved, and the culture cycle of the microalgae is shortened by 10-35%.
Absstract of: CN119709415A
The invention provides a culture method of seawater microalgae. The culture method comprises the following steps: sequentially carrying out first-step culture, second-step culture, third-step culture and fourth-step culture on algae species of the seawater microalgae to obtain the seawater microalgae, 4, culturing in an outdoor pipeline-type photobioreactor, and carrying out shading treatment on the pipeline-type photobioreactor until the shading area is greater than or equal to 65%; wherein the light intensity of the shading part is 0-200 mu mol photon.m <-2 >. S <-1 >, and the light intensity of the non-shading part is 0-2000 photon.m <-2 >. S <-1 >. According to the method, the seawater microalgae can grow in a better state through a culture method of expanding a culture system step by step and finally utilizing a sealed pipeline type photobioreactor to perform fourth-step culture, and the illumination intensity at the culture stage is adjusted, so that the culture efficiency and the yield of the seawater microalgae are improved, and the yield of fucoxanthin is improved.
Absstract of: WO2025063640A1
The present invention relates to a method for culturing microalgae by using air. The method for culturing microalgae according to an embodiment of the present invention, in which microalgae is cultured inside a reactor, comprises: a step for adding a growth medium and limestone to the inside of the reactor; a step for supplying air to the inside of the reactor to which the growth medium and limestone were added, the air being supplied using an air pump; and a step for inoculating microalgae inside the reactor supplied with air, and growing the microalgae by performing a first photo-culture.
Absstract of: US2025098687A1
The present disclosure provides a plant disease resistance inducing agent that can effectively induce resistance to a plant disease. A plant disease resistance inducing agent according to the present disclosure contains a secretion product of a cyanobacterium.
Absstract of: WO2025058231A1
The present invention relates to a microalgae culturing apparatus comprising: a housing which has a predetermined installation space thereinside; a culture unit which is made of a transparent material and is provided in the form of a water tank having an algae culture space filled with microalgae and a culture medium therein so as to be capable of installation in or removal from the installation space in the housing; a culture unit connection part which is provided on one side of the installation space in the housing so as to, when the culture unit is placed and installed thereon, maintain a watertight state and have a connection structure in which the inside of the culture unit and the inside of the culture unit connection part communicate with each other; a lighting part which is installed on one side of the installation space in the housing and outputs and provides light toward the culture unit when the lighting unit is driven; an air supply unit which is connected to the lower portion of the culture unit connection part and provides an air supply path for supplying air introduced into the installation space from the outside of the housing to the algae culture space in the culture unit; and a culture medium circulation unit which is connected to the lower portion of the culture unit connection part so as to suck in the microalgae and the culture medium discharged to the lower portion of the algae culture space in the culture unit and circulate and discharge the microalgae
Absstract of: KR20250041590A
본 발명은 공기를 활용한 미세조류 배양방법에 관한 것으로, 본 발명의 실시예에 따른 미세조류 배양방법은 반응기의 내부에서 미세조류를 배양하는 미세조류 배양방법에 있어서, 반응기의 내부에 성장기 배지 및 라임스톤(limestone)을 첨가하는 단계, 공기펌프를 이용해 성장기 배지 및 라임스톤이 첨가된 반응기의 내부에 공기를 공급하는 단계, 및 공기가 공급된 반응기의 내부에 미세조류를 접종하고 제1 광배양하여 미세조류를 성장시키는 단계를 포함한다.
Absstract of: CN119685167A
The invention relates to the technical field of bioengineering, and discloses an algae-bacterium co-culture complex which is obtained by co-culturing microalgae and magnetotactic bacteria. The composition of the biological hydrocarbon on the surface of the microalgae can provide a relatively anaerobic growth environment for magnetotactic bacteria, and attachment and symbiosis of the microalgae and the magnetotactic bacteria are achieved. Meanwhile, magnetosome particles, glycopeptides and other substances synthesized by magnetotactic bacteria in cells can enter microalgae cells through endocytosis to promote hydrocarbon synthesis of the microalgae cells, so that hydrocarbon accumulation of the microalgae cells is increased; magnetotactic bacteria attached to the surface and magnetosomes in algae cells endow the microalgae with the characteristics of magnetic cells, the cells can be recovered through an external magnetic field, and the magnetic separation and recovery operation is simple, the separation speed is high, the energy consumption is low, and the recovery rate is high. The invention also discloses a culture method of the algae-bacterium co-culture complex, a method for producing biomass by using the algae-bacterium co-culture complex, the biomass and related products.
Absstract of: CN119683774A
The invention discloses an ecological treatment module of an ecological tail water treatment system, the ecological treatment module comprises a salt-tolerant surface flow wetland, a microalgae purification pond and a biological filter, supernatant water treated by a pre-treatment process is used for treating water-soluble organic matters in water through the salt-tolerant surface flow wetland, flows into the microalgae purification pond for absorbing salts in the water, and flows into the biological filter; an aeration device is arranged in the microalgae purification pond and comprises an aeration hole and an anti-blocking assembly moving relative to the surface of the aeration hole, and then the microalgae flows into the biological filter to be used for filtering and purifying the algae, so that nitrogen fixation and carbon fixation are realized. The invention provides the ecological module of the ecological tail water treatment system, which has the advantages of high efficiency, energy conservation, better treatment effect and difficulty in aeration pipe blockage.
Absstract of: CN119685196A
The invention relates to a nitrogen-fixing cyanobacteria heteromorphic cell and a rapid induction method and application thereof, and the rapid induction comprises the following steps: putting nitrogen-fixing cyanobacteria in a nitrogen-deficient culture solution under an illumination condition, inducing for 12 hours, then putting the taken nitrogen-fixing cyanobacteria in a nitrogen-deficient phosphorus-supplemented culture solution, and continuously inducing for 12 hours; meanwhile, a high-content cell imaging analysis system is used for quantifying the quantity, the cell size and the relative fluorescence intensity of the heteromorphic cells formed by differentiation; compared with induction in a culture solution which is deficient in nitrogen and not supplemented with phosphorus, the number of the heteromorphic cells of the three nitrogen-fixing blue-green algae is averagely increased by 43.3%, and the number of the heteromorphic cells of the anabaena is increased by 116%; the culture mode of nitrogen deficiency and phosphorus supply can accelerate the process of inducing heteromorphic cell differentiation, and finds that the number of the heteromorphic cells differentiated from the three strains has the best effect under the conditions of 24 hours of induction in two steps and three times of phosphorus supply.
Absstract of: CN119683792A
The invention discloses an ecological tail water treatment system, which comprises a culture area, a tail water storage adjusting tank, a purification area and an inlet water treatment system which are sequentially and circularly communicated, the purification area comprises a vortex separation tank, an inclined plate sedimentation tank, a brush treatment tank, a filler denitrification tank, an aeration filler tank, a secondary sedimentation tank, a salt-tolerant plant area, a microalgae purification tank and a shellfish biological filter, a filtering system convenient to replace and clean and an aeration system with a strong water stirring function are additionally arranged on a dam of the tail water storage adjusting pond, the water inlet treatment system is communicated with the breeding area, and the vortex separation pond, the inclined plate sedimentation pond, the brush treatment pond, the filler denitrification pond and the aeration filler pond are all communicated with the fermentation pond. The water inlet treatment system comprises a water inlet pipe group penetrating through the tail water storage regulating reservoir, and the water inlet pipe group exchanges heat with water in the tail water storage regulating reservoir, so that the water temperature is balanced. The ecological tail water treatment system provided by the invention can fully adjust the temperature of inlet water, and can more efficiently and fully purify the circulating water body.
Absstract of: CN119685168A
The invention discloses a chlorella pyrenoidosa white mutant strain FZU65-W1 and application of the chlorella pyrenoidosa white mutant The classification name of the chlorella pyrenoidosa white mutant strain FZU65-W1 is chlorella pyrenoidosa, the chlorella pyrenoidosa white mutant strain is preserved in the China General Microbiological Culture Collection Center on September 11, 2024, the preservation number is CGMCC N0.46151, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. Compared with an original strain FZU65, the chlorella pyrenoidosa white mutant strain FZU65-W1 has the advantages that the growth speed of algae cells under the heterotrophic condition is higher, and meanwhile, the cells are white due to the fact that chlorophyll and carotenoid are not synthesized in the cells. The chlorella pyrenoidosa white mutant strain FZU65-W1 can be used for producing high-quality protein through heterotrophic fermentation, so that not only can a later-stage protein extraction and preparation process be simplified, but also the sensory acceptance of algae powder can be improved, and a high-quality germplasm resource is provided for industrial production and application of microalgae protein.
Absstract of: CN119662412A
The invention provides a microalgae nutrient solution and application thereof, and belongs to the technical field of agriculture. The invention provides a microalgae nutrient solution. The microalgae nutrient solution comprises nitrogen-fixing blue-green algae and photosynthetic nutrient green algae, the content of algae single cells in the microalgae nutrient solution is greater than or equal to 1.0 * 10 < 6 >. The microalgae nutrient solution provided by the invention, as a microalgae fertilizer, can significantly improve the activities of urease, sucrase and catalase in soil and reduce the activity of polyphenol oxidase in the soil; the content of alkali-hydrolyzable nitrogen in soil is increased, and the nitrogen fertilizer absorption amount of beet is improved; the richness of soil microbial communities can be increased, and the number of actinomycetes and proteobacteria is increased; growth and development of the beet can be remarkably promoted, the plant height, fresh weight, leaf number, chlorophyll content and net photosynthetic rate of the beet can be improved, accumulation of dry matter of beet tuberous roots can be promoted, timely transfer of beet growth centers can be regulated, and then the yield and sugar yield of the beet can be increased.
Absstract of: CN119660931A
The invention discloses a preparation method and application of a chitosan and diatomite composite flocculant, and the preparation method comprises the following steps: preparing a chitosan-diatomite flocculant by using chitosan and diatomite as raw materials, and then adding gamma-aminopropyltriethoxysilane (APTES) to prepare the composite flocculant (APTES-CTS/DTE). Compared with chitosan serving as a flocculating agent, the composite flocculating agent has the advantages that the use amount of the chitosan is reduced; and compared with diatomite serving as a flocculating agent, the harvesting efficiency is remarkably improved. The composite flocculant provided by the invention overcomes the defects of environmental pollution risk and influence on downstream biomass product processing due to adoption of other inorganic/organic flocculants at the present stage, and large dosage and high cost when chitosan is adopted to harvest microalgae.
Absstract of: CN119662498A
The invention relates to a method for harvesting liquid culture of cyanobacteria. The method comprises the step of inducing cultured cyanobacteria cells to increase the length of the cyanobacteria cells before harvesting. According to the method, a light-sensitive gene regulation and control system and a gene which is regulated and controlled by the light-sensitive gene regulation and control system and affects the cellular morphology are transferred into target cyanobacteria cells, and expression of genes related to the cellular morphology is induced through irradiation of green light, so that the cell length is successfully increased; therefore, the cultured cyanobacteria can be harvested more efficiently by using a filter membrane filtration mode.
Absstract of: CN119660947A
The invention relates to a sewage treatment system and a sewage treatment method for pollution reduction and carbon reduction synergetic recycling. The sewage treatment system comprises a biochemical system and a light algae reaction device which are connected in sequence and run in a sequencing batch mode, the biochemical system is used for carrying out aeration biochemical reaction on the sewage to be treated so as to remove organic matters in the sewage and generate carbon dioxide; microalgae in the light-algae reaction device grow by taking nitrogen and phosphorus in the water treated by the biochemical system as nutrients so as to remove nitrogen and phosphorus in the water, and carbon dioxide generated by the microalgae is subjected to photosynthesis to generate oxygen, so that pollution reduction and carbon reduction are realized, and treated algae-water mixed liquid is obtained and is used for irrigating lean nutrient soil; therefore, water and fertilizer increase of the poor nutrient soil is realized. The invention further provides a sewage treatment method of the sewage treatment system for pollution reduction, carbon reduction and recycling. The treated algae-water mixed solution is used for recarburization nutrition cultivation of barren soil, and a new way is provided for soil improvement and sewage resource utilization.
Absstract of: CN119662372A
The invention discloses a spiral and contraction-expansion coupled micro-channel, which is formed by coupling a spiral micro-channel and a contraction-expansion channel according to three different forms of single-side coupling, double-side coupling or staggered coupling, and is provided with a sample inlet and two outlets, the initial radius of the spiral and contraction and expansion coupling micro-channel is 3-5 mm. The invention further discloses a flexible microalgae sorting method based on the spiral and contraction-expansion coupled microchannel. According to the spiral and contraction-expansion coupled micro-channel provided by the invention, the problems that a traditional microalgae cell sorting method is greatly influenced by environmental conditions and growth states, the sorting speed is low and professional experimental equipment is needed are solved.
Absstract of: CN119655208A
The invention particularly relates to a method for cultivating biological bait in an outdoor pond. According to the method, after an outdoor pond is disinfected and cleaned, a biological fertilizer source and various beneficial bacteria combination are used in a combined mode, cryptococcus ovale, composite diatom and chlorella are inoculated, a stable pond bacterium-algae system is constructed, and various cultivated microalgae are used for strengthening zooplanktons of rotifers, cladocerans and copepods in the bait pond. The breeding period of the biological bait is shortened, the survival rate of the biological bait is increased, the yield of the biological bait is increased, meanwhile, the nutritional value of the biological bait is enhanced, and opening breeding of the fry is facilitated. The breeding method is low in cost and suitable for various weathers, and sufficient bait guarantee is provided for large-scale breeding of fish fries.
Absstract of: CN222647926U
The utility model discloses a microalgae culture shelf which comprises four stand columns, three placing plates are welded among the four stand columns from top to bottom at equal intervals, and a lifting adjusting mechanism is installed in the middle of the upper end of each placing plate. The microalgae culture frame has the beneficial effects that the lifting adjusting mechanism is mounted on the placing plate, so that the bidirectional screw rod can be rotated by virtue of a hand wheel in the lifting adjusting mechanism when the microalgae culture frame is used, and the lifting plate can be lifted under the action of the bidirectional screw rod and a connecting rod; by means of the design, when the microalgae culture shelf is used, step-shaped height differences can be formed between the microalgae culture bottles on the inner sides of all the layers of containing plates and the microalgae culture bottles on the edges, it is guaranteed that illumination intensity borne by microalgae in all the rows of microalgae culture bottles is uniform, and meanwhile workers can conveniently observe the growth conditions of all the rows of microalgae conveniently.
Absstract of: KR20250038982A
미세조류 배양 및 수확장치가 개시된다. 본 발명에 따른 미세조류 배양 및 수확장치는, 내부공간을 형성하는 프레임과, 투명재질로 이루어져 상기 내부공간의 전방을 개폐하도록 상기 프레임에 마련되는 도어와, 투명재질로 이루어지고 상기 프레임의 좌,우측과 후방에 결합되어 상기 내부공간을 외부와 구분하는 각각의 수직판재와, 배양액이 유입되기 위한 배관 연결구를 구비하여 상기 프레임의 상부에 결합되는 빛이 투과되도록 투명재질로 된 상부판재를 포함하는 본체; 메쉬가 서로 다른 메쉬망을 각각 구비하여 상기 본체의 내부공간에 수직방향으로 간격을 유지하여 각각 설치되되, 상부에서 하부로 갈수록 메쉬가 점차 작은 메쉬망이 위치하도록 설치되고, 상기 도어를 통하여 인출 가능하게 설치되는 다수개의 수확용 트레이; 및 상기 배관 연결구를 통하여 공급되는 배양액이 각 상기 수확용 트레이의 각 메쉬망을 통과한 후 수집되도록 상기 본체의 하부에 마련되는 임시 저장탱크를 포함하고, 상기 배관 연결구를 통하여 공급되는 배양액이 각 상기 수확용 트레이의 각 상기 메쉬망을 차례로 통과하여 상기 임시 저장탱크로 수집되는 과정에서 각 상기 메쉬망에 걸러진 미세조류가 공급되는 배양액에 의해 배양되고,
Absstract of: WO2025058231A1
The present invention relates to a microalgae culturing apparatus comprising: a housing which has a predetermined installation space thereinside; a culture unit which is made of a transparent material and is provided in the form of a water tank having an algae culture space filled with microalgae and a culture medium therein so as to be capable of installation in or removal from the installation space in the housing; a culture unit connection part which is provided on one side of the installation space in the housing so as to, when the culture unit is placed and installed thereon, maintain a watertight state and have a connection structure in which the inside of the culture unit and the inside of the culture unit connection part communicate with each other; a lighting part which is installed on one side of the installation space in the housing and outputs and provides light toward the culture unit when the lighting unit is driven; an air supply unit which is connected to the lower portion of the culture unit connection part and provides an air supply path for supplying air introduced into the installation space from the outside of the housing to the algae culture space in the culture unit; and a culture medium circulation unit which is connected to the lower portion of the culture unit connection part so as to suck in the microalgae and the culture medium discharged to the lower portion of the algae culture space in the culture unit and circulate and discharge the microalgae
Absstract of: US2025090611A1
It is an object of the present invention to provide a means capable of appropriately regulating differentiation of T cells, in order to avoid overactivation of T cells after stimulation of the T cells with superantigens or the like and the subsequent decrease in the immune functions (exhaustion of the immune system). The present invention relates to a T cell differentiation-regulating agent, comprising, as an active ingredient, an algal body of microalgae belonging to the genus Coccomyxa, a dry powder thereof, or an extract thereof.
Absstract of: CN119638078A
The invention provides a device and a method for improving transparency of a natural water body by utilizing a microalgae biological membrane, and belongs to the field of water treatment, and the device comprises a water tank, rollers, a microalgae attachment matrix, a water distribution device and a lighting device. The transparency of the natural water body is effectively improved through the microalgae biological membrane. The microalgae biological membrane secretes macromolecular extracellular polymeric substances, can adsorb suspended particulate matters and soluble organic matters in water, and inhibits the reproduction of other planktons through nutrition competition, so that the turbidity is reduced. In addition, the device is designed as up-flow water inlet, so that the contact between the water body and the microalgae biological membrane is enhanced, and the treatment effect is improved. LED lamps and a heating device are adopted to keep a proper growth environment, and meanwhile, a photovoltaic power generation system is arranged, so that green and environment-friendly effects are achieved. The method is simple and easy to implement, low in cost and convenient to manage and maintain, and a novel and effective technical scheme is provided for improving the transparency of the natural water body.
Nº publicación: CN119639549A 18/03/2025
Applicant:
GUONENG BAORIXILE ENERGY LTD COMPANY
CHN ENERGY NEW ENERGY TECH RESEARCH INSTITUTE CO LTD
\u56FD\u80FD\u5B9D\u65E5\u5E0C\u52D2\u80FD\u6E90\u6709\u9650\u516C\u53F8,
\u56FD\u5BB6\u80FD\u6E90\u96C6\u56E2\u65B0\u80FD\u6E90\u6280\u672F\u7814\u7A76\u9662\u6709\u9650\u516C\u53F8
Absstract of: CN119639549A
The invention provides a photobioreactor. The photobioreactor comprises a light-permeable container; the first light supplementing assembly is installed in the light-transmitting container and located in the middle of the light-transmitting container; the reaction tubes are used for containing microalgae suspension liquid, and the multiple reaction tubes surround the first light supplementing assembly and are installed on the light-permeable container; the plurality of second light supplementing assemblies are mounted on one side, back on to the first light supplementing assembly, of the reaction tube; and a controller; wherein the controller can receive the illumination intensity information of the surface of the reaction tube and send instructions to the first light supplementing assembly and the second light supplementing assembly to adjust the light supplementing intensity, so that the stability of the illumination environment in the reactor is maintained. When the external illumination condition changes, the controller controls the light supplementing assembly to adjust the light supplementing intensity according to the monitored illumination intensity change so as to maintain the stability of the whole illumination environment in the reactor.
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