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Microalgae photosynthetic treatment hydrogel mask and preparation method thereof

Resumen de: CN120478195A

The invention discloses a microalgae photosynthetic treatment hydrogel mask and a preparation method thereof, a suspension bath 3D printing technology and a face scanning technology are utilized, and microalgae bio-ink is used for customized production of a 3D attached mask, so that oxygen is generated and effective components are released by utilizing photosynthesis in the use process, and the mask is used for photosynthetic treatment. In the process of secondary cross-linking, micromolecular collagen and Se element are introduced to promote cell proliferation and migration, and triple anti-aging effects of supporting, repairing and protecting are achieved. The invention has the advantages of sustainability, environmental friendliness, simple formula, scientific design, direct utilization of microalgae, use of renewable and degradable materials as raw materials, no pollution emission in the preparation and use process, and recoverable raw materials, and compared with the traditional mask preparation mode, the invention has the advantages of low carbon and environmental protection.

Haematococcus pluvialis culture medium and haematococcus pluvialis culture method

Resumen de: CN120484964A

The invention relates to the technical field of biological culture for producing high-added-value products from microalgae, in particular to a haematococcus pluvialis culture medium and a haematococcus pluvialis culture method. The haematococcus pluvialis culture medium is mainly based on a BG11 culture medium, an organic carbon source acetic acid for value-added growth of haematococcus pluvialis is added on the basis of the BG11 culture medium, and meanwhile, the addition amount of a chelating agent, biotin and various trace elements in the culture medium are adjusted to inhibit the growth of bacteria and promote the growth of target organism haematococcus pluvialis cells. The biomass of the haematococcus pluvialis is obviously improved, and the production economic benefits can be efficiently improved in the large-scale production of the haematococcus pluvialis.

ORAL COMPOSITION

Resumen de: JP2025120454A

To provide an oral composition exhibiting an excellent diet effect.SOLUTION: The oral composition contains (A) 3-hydroxy-3-methylbutyric acid or a salt thereof, and (B) at least one ingredient selected from the group consisting of Sasa veitchii, moringa, Peucedanum japonicum, kale, mugwort, mulberry, microalgae, barley, Angelica keiskei, and sweet potato.SELECTED DRAWING: Figure 1

Culture medium for co-culture of microalgae and microorganisms and preparation method of culture medium

Resumen de: CN120484963A

The invention relates to a culture medium for co-culture of microalgae and microorganisms and a preparation method of the culture medium, and belongs to the technical field of microalgae culture media, the culture medium specifically comprises the following raw materials in parts by mass: 25-35 parts of a composite carbon source, 3-4 parts of a composite nitrogen source, 0.5-0.7 part of a phosphorus source, 0.003-0.005 part of trace elements, 5-10 parts of a stable additive and 1000 parts of sterile deionized water, the composite carbon source is obtained by mixing an enzymolysis-heat treatment product from agricultural wastes with glucose and carbonate; the stabilizing additive is obtained by mixing a phosphate buffer solution, zeolite powder and Tween. The corn straw is converted into oligosaccharide, biochar and other products through an enzymolysis-heat treatment process. The oligosaccharide can be endocytosed and absorbed by the microalgae, the porous structure of the biochar adsorbs CO2 and slowly releases the CO2, gradient supply of a carbon source is maintained, instantaneous consumption of microorganisms is reduced, and triple regulation and control of pH buffering, ion exchange and interface stability are realized through the stabilizing aid.

Feed additive for reducing heavy metal deposition in pig body and preparation method thereof

Resumen de: CN120477285A

The present invention discloses a feed additive for reducing heavy metal deposition in pig bodies and a preparation method thereof, and relates to the technical field of feeds, the feed additive is prepared from the following components: 10-20 parts of corn gluten meal, 10-20 parts of highland barley powder, 5-15 parts of compound microorganisms, 4-12 parts of whey powder, 4-8 parts of microalgae powder, 2-6 parts of fish meal, 4-12 parts of active additives, and 0.5-5 parts of vitamin C; the active additive is prepared by mixing a Chinese herbal medicine extract and modified activated carbon; through the synergistic effect of multiple functions, the feed additive disclosed by the invention can significantly reduce heavy metal enrichment of target organs in pig bodies, avoid loss of feed nutrient elements, synchronously improve the stress resistance and growth efficiency of pigs, reduce the safety risk of meat products from the source, and provide key technical support for green and healthy transformation of animal husbandry.

LIQUID COMPOSITION

Resumen de: WO2025166399A1

The present disclosure generally relates to liquid compositions that can be used to treat a water body, for example a dam, river or waste water. In particular, the present disclosure relates to compositions that can be used to control cyanobacteria in a water body. The liquid compositions comprise worm castings, a sugar source and optional other additives/excipients. The present disclosure also relates to methods of treating a water body using the liquid compositions. The present disclosure also relates to processes for preparing the liquid compositions, and also to uses and kits comprising the liquid compositions.

MICROALGAE-ENRICHED FOODS

Resumen de: US2025255337A1

In alternative embodiments, provided are compositions, including products of manufacture, foods and drinks and kits, comprising one or mixtures of two or more or a plurality of microalgae, wherein the microalgae, optionally blue-green algae or cyanobacteria, or extracts of the microalgae, or dried extracts of the microalgae, are formulated into a food, candy, nutritional supplement, or an ingestible liquid. In alternative embodiments, the one or two or more or a plurality of microalgae comprise a microalgae from the genus: Spirulina sp., Arthrospira sp., Limnospira sp, Dunaliella salina, and/or Nannochloropsis salina. In alternative embodiments, the one or two or more or a plurality of microalgae are formulated into a food such as a guacamole (to generate for example, to generate a Microalgae-Enriched Guacamole (MEG).

USE OF CYANOBACTERIAL BIOREACTOR FOR CARBON SEQUESTRATION

Resumen de: US2025257372A1

The subject invention provides compositions and methods for reducing deleterious atmospheric gases using microorganisms. In preferred embodiments, a composition comprising one or more beneficial microorganisms convert carbon dioxide to calcium carbonate, magnesium carbonate, a bicarbonate, or a combination thereof. The source of the carbon dioxide can be industrial emissions. In some embodiments, the composition sequesters carbon with the use of a trough growth system and the culture and/or growth by-product can be sequestered in underground geological formations.

Chemical sterilization or disinfection method of microalgae culture medium using calcium hypochlorite

Resumen de: KR20250122828A

본 발명은 차아염소산칼슘(calcium hypochlorite, Ca(ClO)2)을 이용한 미세조류 배양 배지의 화학적 멸균방법에 관한 것으로, 차아염소산칼슘(calcium hypochlorite, Ca(ClO)2)을 미세조류 배양 배지에 넣어 멸균한 후 MnCl2-Na2EDTA 복합체 및 glucose의 촉매 반응을 통해 차아염소산칼슘을 중화시켜 멸균된 미세조류 배양 배지에 의해 미세조류의 성장을 증대시키는 것이 특징이다. 상기 본 발명에 따른 미세조류 성장의 증대는 영양 보충제, 식품 착색제, 사료 첨가제 및 성장 촉진제, 폐수 처리제, 바이오 연료 등 다양한 산업 분야에 활용될 수 있다.

CULTURE METHOD AND CULTURE DEVICE

Resumen de: US2025257313A1

A culture device comprises: a gas supply unit; and a plurality of containers. The gas supply unit is connected with the plurality of containers through a plurality of gas supply lines, respectively. The plurality of gas supply lines are provided with a plurality of valves, respectively. While microalgae are cultured in the plurality of containers, the opening degrees of the plurality of valves are adjusted. By such adjustment of the opening degrees, a greater amount of gas is supplied to one of the plurality of containers than those of the other containers.

ANALGESIC COMPOSITION

Resumen de: JP2025118119A

To provide an analgesic composition that can substitute for NSAIDs.SOLUTION: An analgesic composition contains microalgae as an active ingredient.SELECTED DRAWING: Figure 3B

Selenium-rich DHA-rich feed additive as well as preparation method and application thereof

Resumen de: CN120458196A

The invention provides a selenium-rich DHA-rich feed additive as well as a preparation method and application thereof, and belongs to the technical field of feed additives. The preparation method comprises the following steps: preparing a core material: dissolving sodium alginate in water, adding schizochytrium limacinum powder and water-soluble selenoprotein, heating and mixing to obtain a mixed solution 1; adding the mixed solution 1 into the rapeseed oil, adding polysorbate, and mixing to obtain a mixed solution 2; adding a calcium chloride solution into the mixed solution 2, centrifuging, collecting precipitate, and drying to obtain a core material; preparing a wall material: thermally melting corn viscose, then adding maltodextrin and polycaprolactone, and mixing to obtain the wall material; and coating: mixing the core material and the wall material for coating. The method is simple and easy to operate, the rancidity rate of DHA in the core material can be inhibited, the stability of DHA microalgae powder in stomachs and intestines of livestock and poultry is improved, and the conversion rate is increased. And meanwhile, the water-soluble selenoprotein in the core material and the microalgae powder rich in DHA have a synergistic effect, so that the contents of selenium and DHA in livestock and poultry products can be effectively increased.

Composite microbial agent for treating cyanobacterial bloom

Resumen de: CN120464546A

The invention relates to the technical field of microbial engineering, and particularly discloses a compound microbial agent for treating cyanobacterial bloom, bacillus velezensis provided by the invention destroys algae cells and inhibits the activity of related biological enzymes by secreting heterocyclic algal killing active substances, and simultaneously causes the leakage of cellular contents (such as algal toxins, polysaccharides and lipids); an extracellular enzyme system (such as alkaline phosphatase and beta-glucosidase) of the sphingomonas decomposes free algal toxins into low-toxicity linear peptide fragments and hydrolyzes beta-1, 4-glucosidic bonds in EPS at the same time, so that algae-derived organic fragments are converted into small-molecular soluble substances, and a substrate is provided for follow-up metabolism of rhodococcus; lipase and esterase secreted by rhodococcus can hydrolyze triglyceride and waxy components, fatty acid is converted into energy and a biosurfactant through a beta-oxidation pathway, and hydrophilicity of frond fragments is enhanced to promote overall degradation efficiency.

Microalgae particle incubator and system for carbon capture

Resumen de: CN120464467A

The invention provides a microalgae particle culture device and system for carbon capture, the microalgae particle culture device for carbon capture comprises a tank body, a first guide cylinder and a second guide cylinder, the tank body is provided with a bottom water inlet pipe and an upper overflow port, the first guide cylinder is coaxially arranged in the middle of the tank body, and the second guide cylinder is coaxially arranged in the middle of the tank body; the bottom of the water inlet pipe is opposite to the water inlet pipe and forms an overflow gap with the bottom of the tank body, and a flow guide component positioned below the overflow port is arranged above the top and forms an overflow gap with the top; the top of the second guide cylinder is fixed with the top wall of the tank body, the bottom of the second guide cylinder sleeves the periphery of the first guide cylinder, and overflowing gaps are formed among the second guide cylinder, the inner wall of the tank body and the first guide cylinder; and a lighting assembly is arranged in at least one of the tank body, the first guide cylinder or the second guide cylinder. According to the application, efficient particle culture, convenient harvesting and carbon sequestration are realized by constructing a stable backflow channel, inducing particle deposition, promoting microalgae suspension flow and particle aggregation, providing directional light supplement by the lighting assembly, improving the photosynthe

Method for enhancing microalgae carbon sequestration through cooperation of seaweed-based carbon quantum dots and plant hormones

Resumen de: CN120459796A

The invention relates to a method for enhancing microalgae carbon sequestration through cooperation of seaweed-based carbon quantum dots and plant hormones, and belongs to the technical field of biological carbon sequestration. According to the method, chlorella is used as a carbon sequestration carrier and is cultured in a vertical tubular photobioreactor, indole-3-acetic acid (IAA) and seaweed-based carbon quantum dots (U-CQDs) are added in an initial stage, and culture conditions (25-30 DEG C, 3000 Lux illumination and 15% CO2 supply) are optimized. The seaweed-based carbon quantum dots (U-CQDs) are prepared by taking enteromorpha prolifera as a raw material through a hydrothermal method, and have excellent light conversion characteristics. Through the synergistic effect of the U-CQDs and the IAA, the light energy utilization efficiency, the CO2 fixation rate and the biomass accumulation of the microalgae are remarkably improved, and meanwhile, the culture energy consumption is reduced. The method is easy and convenient to operate, low in cost and suitable for efficient capture and resource utilization of industrial flue gas CO2.

Microalgae membrane photobioreactor for treating artemia culture tail water

Resumen de: CN120463348A

The present invention relates to the technical field of wastewater treatment, and provides a microalgae membrane photobioreactor for artemia culture tail water treatment, the microalgae membrane photobioreactor comprises a transparent reactor shell, and the inner wall, close to the bottom, of the transparent reactor shell is fixedly connected with a flat sheet membrane. According to the invention, the motor is controlled by the controller to start, so that the threaded strip can move towards one side along the outer surface of the reciprocating screw rod, teeth of two racks on one side can be continuously meshed with teeth of corresponding gears, two gears can rotate, the sealing state of the sealing cylinder to the transparent reactor shell is gradually released, the sealing cylinder stops rotating, and the transparent reactor shell is sealed. Through reciprocating movement of a scraping strip, algal mud on the polyester non-woven fabric can be pushed into two sealing cylinders, so that the algal mud attached to the polyester non-woven fabric can be scraped and discharged from the interior of the transparent reactor shell, manual treatment is not needed in the process, time and labor are saved, and the efficiency is improved. Therefore, the artemia culture tail water treatment efficiency is improved.

Spirulina with anti-pollution capacity and application thereof

Resumen de: CN120442472A

The invention relates to spirulina with anti-pollution capacity, which is preserved in China General Microbiological Culture Collection Center on December 25, 2024, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.46270. The spirulina strain provided by the invention has remarkable anti-pollution capacity, and can effectively resist various external pollution in an open culture environment, such as interference of harmful microorganisms, germs and other harmful substances. The algal strain also has strong environmental adaptability, can stably grow in different water quality conditions and temperature ranges, and ensures the sustainability of production and culture. The algal strain can produce various bioactive substances at high yield, and can be widely applied to industrial production in the fields of microalgae-based feed additives, health-care products, food, cosmetics and the like. In general, the spirulina strain disclosed by the invention, as a high-quality algae species, has a remarkable stress resistance advantage, so that not only is the production efficiency improved, but also the technical progress and healthy development of related industries are promoted.

Full-circulation fishery breeding water treatment device and method based on photocatalytic microalgae coupling

Resumen de: CN120441090A

The invention provides a full-circulation fishery breeding water treatment device and method based on photocatalytic microalgae coupling, and the device mainly comprises a photocatalytic treatment pond, an adult breeding pond, a seedling breeding pond and a microalgae bait breeding pond, an anode, a cathode, a photocatalytic film, deposited bottom mud, an ultraviolet lamp, a CO2 aeration disc, a gate valve, a water pump, an LED light source and a water quality sensor are also arranged in different tanks. An anode, a cathode, a water body and an external circuit in the full-circulation fishery breeding water treatment device jointly form a bacteria-algae biological fuel cell which supplies power to equipment such as an ultraviolet lamp of a photocatalysis treatment pond, an LED light source of each breeding pond, a water pump and the like; a water quality sensor network is formed in the full-circulation water treatment device, and the processes of water supplementing, bait supplementing and the like are efficiently controlled in time. According to the invention, the photocatalytic oxidation and the biological fuel cell cooperate to purify culture sewage, the microalgae is used as bait to reduce cost and improve immunity, and the microbial fuel cell generates power to supply oxygen to the microalgae light source, so that zero emission, full circulation and water saving are realized.

High-yield glucose-secreting cyanobacteria and application thereof

Resumen de: CN120442677A

The invention relates to application of a cyanobacteria glucokinase inactivating agent in preparation of cyanobacteria with a glucose secretion function or high glucose yield. The invention further relates to cyanobacteria with a high glucose secretion function or high glucose yield and application of the cyanobacteria. Glucokinase in the cyanobacteria loses functions. According to the invention, glucokinase of cyanobacteria is knocked out, the mutant strain accidentally obtains the capacity of mass production of glucose and secretion of glucose to the outside of cells, the yield of glucose is increased by hundreds of times, the mutant strain provides possibility for subsequent industrial production of glucose by using cyanobacteria, and the mutant strain can be used for constructing a biological photovoltaic device, and has a wide application prospect. And glucose is continuously provided for the cathode cell and is used for being matched with a glucose oxidation electron transfer chain displayed extracellularly to generate reducing power and electrons, so that the light energy conversion efficiency is improved, and efficient transmembrane transfer of energy substances is realized.

Integrated extraction device for microalgae polysaccharide

Resumen de: CN120442390A

The invention relates to an integrated extraction device for microalgae polysaccharide. The integrated extraction device comprises an algae adding system, a centrifugal system, an enzymolysis system, a flash extraction system, a separation and purification system and a drying system, the centrifugal system comprises a centrifugal device, a filtering device, a slag scraping device, a feeding hole and a discharging hole; the enzymolysis system comprises an enzyme adding tank, an enzymolysis tank, a reflux system, a filtering system, a water adding system and a monitoring and safety system; the flash extraction system comprises a flash extraction device, a lifting device, a fixing device, a feed port and a discharge port; the separation and purification system comprises a solid-liquid separation unit, a deproteinization unit, a decolorization unit, an alcohol precipitation unit and a purification unit; the drying system comprises an atomization device and a hot air device and can dry microalgae polysaccharide. The extraction device can realize automatic and efficient extraction of microalgae polysaccharide, is automatic, efficient and suitable for various microalgae, and the microalgae polysaccharide prepared by adopting the system has relatively good stability, biological activity, extraction rate and purity.

Method for promoting microalgae growth by using pharmaceutical product

Resumen de: CN120442514A

The invention belongs to the technical field of microalgae biology and culture, and particularly relates to a method for promoting microalgae growth by using a pharmaceutical product, which comprises the following steps: activating microalgae on a solid flat plate, inoculating the activated microalgae into a liquid culture medium, adding the pharmaceutical product at the initial stage of microalgae growth, placing in a constant-temperature shaking table, and carrying out illumination culture. According to the method, different types of pharmaceutical products with different concentrations are added into the microalgae, the influence of the addition of the different types of pharmaceutical products with different concentrations on the growth promotion of the microalgae is analyzed, the biomass of the chlorella can be rapidly increased, and the method has important significance on the large-scale production of the microalgae.

Method for generating and extracting microalgae metabolite

Resumen de: CN120442720A

The invention discloses a microalgae metabolite generation and extraction method. The microalgae culture is subjected to stress treatment to stimulate the microalgae to increase the secretion of metabolites. In addition, cell walls of the microalgae are decomposed by hydrolyzing enzymes or fungal cultures, so that metabolites of the microalgae are released more effectively. And finally, separating and purifying the metabolite released by the microalgae by adopting methods such as filtration, centrifugation, ultrafiltration and the like. According to the method, the yield of microalgae metabolites can be increased, and the method has important value for application of microalgae in the fields of biotechnology, food, medicine industry and the like.

Seawater chlorella with high ammonia nitrogen removal rate and high starch accumulation capacity as well as culture method and application thereof

Resumen de: CN120442407A

The invention discloses seawater chlorella with high ammonia nitrogen removal rate and high starch accumulation capacity as well as a culture method and application of the seawater chlorella. The problems that the growth rate is reduced and the ammonia nitrogen treatment efficiency is reduced due to the salt stress effect when a traditional bioremediation technology is applied to a tidal basin are solved. According to the method, the seawater chlorella with high adaptability is utilized, the ammonia nitrogen absorption capacity and the starch accumulation amount of the seawater chlorella are remarkably improved through the salt synergistic effect in combination with the immobilization technology, and therefore effective treatment on the ammonia nitrogen pollution of the tidal basin is achieved. Under the conditions that the salinity is 0.5% and the ammonia nitrogen concentration is 3 mg/L, the ammonia nitrogen removal rate of the seawater chlorella reaches 93.60%, the starch accumulation amount reaches 10.06 mu g/10 < 6 > cells, and the ammonia nitrogen removal rate and the starch accumulation amount are increased by 23.2% and 58.4% respectively. The method has the advantages of simple and convenient process, high efficiency, strong environmental adaptability and the like, and is suitable for ammonia nitrogen pollution treatment and microalgae resource utilization in tidal basins.

Microalgae culture, harvesting and energy utilization process and system

Resumen de: CN120442405A

The invention relates to the field of microalgae culture and energy utilization. More specifically, the invention relates to a microalgae culture, harvesting and energy utilization process and system, cultured microalgae are harvested in a flocculation mode, ferric nitrate is used as a flocculant, ammonia water is added to adjust pH, generated ammonium nitrate can be recycled as a nitrogen source, and iron ions are changed into ferric hydroxide precipitates to be removed; the harvested microalgae is subjected to pyrolysis to prepare high-calorific-value bio-oil and biogas, iron-containing pyrolysis residues are further treated to obtain Fe3O4-BC serving as a magnetic flocculant, allelochemicals in an algae solution can be adsorbed and removed while microalgae flocculation is enhanced, and the inhibition effect of the culture solution on the microalgae during cyclic utilization is reduced. According to the invention, the culture, harvesting and energy utilization of microalgae can be synchronously realized, the problems of large water consumption in microalgae culture, difficult harvesting, incapability of effectively recycling a culture solution and the like are effectively solved, and a technical basis is provided for industrial application of energy microalgae.

Method for screening spirulina with anti-pollution capacity

Nº publicación: CN120442748A 08/08/2025

Solicitante:

QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECH CHINESE ACADEMY OF SCIENCES
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Resumen de: CN120442748A

The invention relates to a method for screening spirulina with anti-pollution capacity, which comprises the following steps: S1, inoculating starting spirulina into a liquid culture medium, and adding a pollution system to obtain a bacterium-algae evolution screening system; s2, culturing the bacteria-algae evolution screening system under illumination until algae cells are basically split; s3, resuscitating the bacteria-algae evolution screening system to obtain a resuscitated spirulina culture; and S4, purifying the spirulina with anti-pollution capacity from the spirulina resuscitation culture. On the basis of biological stress of polluting bacteria in a microalgae culture system, adaptive evolution of the spirulina on different culture scales is promoted by utilizing the algae lysing effect of the mixed bacterial liquid on the spirulina and evolution rescue of the spirulina, and finally, the spirulina strain with higher stress resistance and pollution resistance is obtained by utilizing the existing spirulina strain. And a rapid and effective way is provided for spirulina breeding.