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147
resultados
Última actualización
26/11/2025 [07:35:00]
Resultados 25 a 50 de 147
Resumen de: WO2025206966A1
The present invention refers to a biotechnological process for obtaining suspensions of biogenic nanoparticles of zerovalent selenium, which have a high stability, and which have agronomic functions specific to plant biostimulants, that are amplified as a result of the formation of a biocorona which includes bioactive molecules from the biotechnological system wherein these selenium nanoparticles were formed. The biotechnological process involves the biosynthesis of selenium nanoparticles by the consortium of microalgae, Nannochloris sp. 424-1, deposited under CCAP number 251/10 in the Culture Collection of Algae and Protozoa (CCAP), and yeasts, Rhodotorula mucilaginosa TazRr, deposited under DSM number 34804, at the Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, to promote the formation of suspensions of stable selenium nanoparticles. The process also includes separation and concentration steps by micro- and ultrafiltration on ceramic membranes.
Resumen de: WO2024105258A1
The invention relates to a method for the preparation of microalgal for use as a food-grade ingredient without the need of any further purification or separation step and resulting products therefrom.
Resumen de: EP4620529A2
A composition comprising a eukaryotic microalgae or an extract thereof may be for use in the treatment of a viral disease, e.g. coronavirus, and for use as an inhibitor of the binding of Spike protein receptor binding domain (RBD) to Angiotensin-Converting Enzyme 2 (ACE2). A compound derivable from eukaryotic microalgae may also be for use in the treatment of a viral disease. In turn, a eukaryotic microalgae may be used as an antiviral agent.
Resumen de: CN223357628U
The utility model relates to the technical field of cultivation devices, in particular to a selenium-containing protein carotenoid microalgae cultivation device. Aiming at the problem that the growth of microalgae is limited due to the change of external illumination and temperature and the inappropriate change of the concentration of carbon dioxide, so that the content of selenoprotein carotenoid is reduced, the following technical scheme is provided: the device comprises a box body, the top of the box body is rotatably connected with a box cover, and a cultivation groove is formed in the box body; a cultivation tank is placed in the cultivation groove, and microalgae are contained in the cultivation tank; the constant-temperature heating unit is mounted in the box body, and the top of the constant-temperature heating unit is in contact with a cultivation tank; the lamp strip is mounted on the inner wall of the cultivation tank and surrounds the outer ring of the cultivation tank. The device can automatically adjust the illumination, the temperature and the carbon dioxide content of microalgae breeding, improves the growth efficiency of microalgae, and ensures the growth of microalgae, the accumulation of nutritional ingredients and the final harvesting efficiency.
Resumen de: CN120660801A
The invention belongs to the crossing field of cultivation and bioengineering, and particularly relates to a multi-strain insect protein and microalgae compounded bullfrog feed and a preparation method thereof, the multi-strain insect protein and microalgae compounded bullfrog feed comprises the following components: 25-45% of fermented insect protein, 15-30% of DHA microalgae powder, 10-20% of an auxiliary protein source, 0.5-2% of compound vitamin selected from fermented soybean meal or enzymolysis cottonseed protein, 0.5-2% of vitamin B, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5 1%-3% of composite mineral substances, 2%-5% of an adhesive and the balance of carbohydrate; the total DHA content of the bullfrog feed is larger than or equal to 1.5% by dry weight, the ratio of omega-3 fatty acid to omega-6 fatty acid is maintained to be 1: 1-1: 3, and the bullfrog feed has the advantages that saccharomyces cerevisiae is replaced with candida utilis, so that the capability of decomposing insect chitin is enhanced; chlorella is used for supplementing chlorophyll and algal polysaccharides to form a cell protection synergistic effect with schizochytrium limacinum, and DHA is supplemented at the same time; under the action of alkaline protease secreted by bacillus subtilis, the proportion of a beta-folding structure is reduced from 32% to 18%, and the digestibility is remarkably improved.
Resumen de: CN120665720A
The invention discloses a method for producing high-quality protein raw material microalgae. By combining a reduction product formic acid driven by carbon dioxide clean energy with edible microalgae culture, microalgae growth and protein synthesis are enhanced. The method specifically comprises the following steps: carrying out adaptive evolution of microalgae by using 20-50mM of low-concentration formate, culturing under an illumination condition by using 50-300mM of formate as an auxiliary carbon source, and finally harvesting the microalgae biomass of which the protein content exceeds 30% and the amino acid composition meets the high-quality protein requirements of international grain and agricultural tissues, high-quality protein raw materials of food and feed can be used. The method has a remarkable application prospect in the field of green non-grain high-quality protein raw material production.
Resumen de: CN120665770A
The invention relates to a lutein-producing flavobacterium strain and belongs to the technical field of biology, the lutein-producing flavobacterium strain can produce lutein, the yield is 71.08 +/-1.33 mu g/g FW, in addition, the invention discloses a lutein microbial fermentation production method, and the method comprises the steps of bacterial liquid preparation, lutein production and product extraction and chemical detection. Compared with extraction of xanthophyll from marigold and microalgae, the flavobacterium strain has the advantages that the growth cycle is 40-48 hours, the production cycle of the flavobacterium strain is short, cultivated land can be saved, the content of pigment impurities is low, the cost can be reduced, and the flavobacterium strain has the potential of industrial application.
Resumen de: WO2025191569A1
Provided by the present disclosure is an aquatic cultivation system (mic-RAS), method of cultivation and microalgae obtainable thereby. The system comprises an aquatic cultivating tank comprising treated media inlet and effluent outlet; a photo-membrane bioreactor (PMBR) comprising a membrane having selective permeability, a PMBR inlet and a PMBR outlet; and fluid communication lines for continuous circulating effluent from the effluent outlet into the PMBR and treated media from the PMBR outlet into the aquatic cultivating tank. The method comprises cultivating aquatic organisms in an aquatic cultivating media within a cultivating tank; cultivating microalgae in an effluent media within a PMBR, the PMBR comprising membrane having selective permeability, submerged within the effluent media, the cultivating of the microalgae comprises: illuminating the microalgae; and circulating effluent from the cultivating tank into the PMBR and treated media from the PMBR into the cultivating tank. Further there is provided a microalgae, preferably obtained or obtainable by the system and/or method.
Resumen de: CN120647032A
The invention discloses a percolate treatment method based on a microalgae coupling nitration process, and belongs to the field of wastewater biological treatment and intelligent control, and the method comprises the following steps: constructing initial reaction conditions suitable for microalgae proliferation and nitration reaction; operating parameters such as ammonia nitrogen concentration, nitrite concentration, dissolved oxygen, temperature and microalgae concentration are collected to form real-time operating data; based on the weighted multi-parameter fitting relationship, calculating an optimal combination of the illumination intensity, the carbon source feeding rate, the cycle ratio and the reaction duration; when the ammonia nitrogen removal rate is continuously lower than a threshold value, calling historical data to carry out trend analysis, and dynamically correcting a fitting weight; applying the correction result to control the illumination condition and the water inlet and outlet proportion; after the operation cycle is finished, updating the fitting model by adopting an incremental learning mode to realize continuous optimization of the control strategy; according to the invention, the nitrogen element removal efficiency of the percolation liquid and the system stability are improved, and the self-adaptive adjustment capability is relatively strong.
Resumen de: CN120647067A
The invention belongs to the field of aquaculture tail water treatment, and provides an aquaculture tail water treatment method which comprises the following steps: S1, settling and intercepting tail water through the front end of an ecological ditch; s2, performing multi-stage purification treatment on the passing tail water through a sedimentation tank, a filter dam I, an aeration tank, a filter dam II, a microalgae membrane tank and an ecological purification tank. Membrane pool medium filtration is adopted, the manufacturing cost is low, popularization is easy, the ecological property is good, and treatment is more efficient; the tail water treatment method has the advantages of saving land occupation, guaranteeing up-to-standard discharge, and aiming at the defects of low nitrogen and phosphorus pollutant treatment efficiency and slow nitrogen and phosphorus purification speed in the prior art, the tail water treatment method can improve the treatment efficiency and guarantee up-to-standard discharge of the culture tail water.
Resumen de: CN120647049A
The invention relates to the technical field of environmental engineering, and discloses a wool washing wastewater recovery treatment process which comprises the following steps: S1, carrying out demulsification pretreatment on wastewater through bionic nano-enzyme and recovering wool fat, S2, carrying out supercritical water gasification reaction on the pretreated wastewater, synchronously decomposing organic matters and generating hydrogen, the method comprises the following steps: S1, gasifying effluent, S2, carrying out gasification on the effluent, S3, carrying out filtration and biodegradation on the gasified effluent by adopting a self-energy-supply dynamic membrane bioreactor, S4, carrying out deep purification on membrane effluent through a photocatalysis-microalgae coupling system, and S5, coordinating operation of the whole system through an intelligent control algorithm based on real-time monitoring data. According to the method disclosed by the invention, the technical effects of efficiently recovering the wool fat and improving the oil-water separation selectivity are achieved by adopting a technical scheme of synergistically enriching and demulsifying the magnetic response bionic nano-enzyme and the high-gradient magnetic field; the problems of high reaction residue, serious secondary pollution and easy enzyme inactivation are solved.
Resumen de: CN120648560A
The invention belongs to the technical field of bioengineering, and particularly relates to a microalgae alkali precipitation harvesting and re-culture utilization process which comprises the following steps: (1) adding an HEPES buffer solution into a microalgae culture solution to adjust the pH value of the microalgae culture solution to 7.5-8.0 to obtain a microalgae culture solution A; (2) adding a mixed solution of triethanolamine and sodium citrate into the microalgae culture solution A in the step (1) to adjust the pH value of the microalgae culture solution A to 8.0-9.0 to obtain a microalgae culture solution B; (3) adding an alkaline solution into the microalgae culture solution B in the step (2) to adjust the pH value of the microalgae culture solution B to 10.2-13.0 to obtain a microalgae culture solution C; and (4) standing and layering the microalgae culture solution C, discarding the supernatant, collecting the lower concentrated algae solution, transferring into the culture medium, and re-culturing. According to the microalgae alkali precipitation harvesting and re-culture utilization process, the microalgae culture process can be efficiently carried out, and the microalgae alkali precipitation harvesting and re-culture utilization process is suitable for various culture modes of autotrophy, heterotrophy and heterotrophy-autotrophy.
Resumen de: CN120642695A
The invention discloses application of scenedesmus obliquus to improvement of saline-alkaline tolerance of suaeda glauca, and belongs to the technical field of saline-alkaline tolerance of suaeda glauca. The purpose of the invention is to improve the saline-alkali resistance of suaeda salsa and improve saline-alkali soil. The invention provides a method for improving saline-alkaline tolerance of suaeda glauca, which comprises the following steps: inoculating scenedesmus obliquus into a BG11 culture medium, culturing under the conditions of 30 DEG C and 200rpm oscillation, introducing 2.5% CO2 and giving 2000lux continuous illumination, after an algae solution reaches a logarithmic phase, centrifugally collecting algae under the condition of 5000rpm, washing the algae with distilled water for three times, and adding the algae into salt-containing wastewater until the final concentration is 0.05 g/L. The invention further provides a method for improving the saline-alkaline tolerance of suaeda glauca. The research reveals composition and functional differences of suaeda glauca rhizosphere bacterial communities under different irrigation treatments, and lays a foundation for promoting plant growth and improving saline-alkali soil by using microalgae.
Resumen de: CN120624177A
The invention relates to the technical field of microalgae continuous culture, and particularly discloses an isochrysis galbana continuous culture system and a continuous culture method.The culture system comprises an upper computer and a lower computer; the upper computer is a remote monitoring and control platform based on a mobile terminal, is connected with the lower computer and is used for real-time monitoring, parameter setting and remote regulation and control; the lower computer comprises a pipeline type photo-biological reaction circulating unit, a control unit, a supplementary material adding unit and a discharged liquid collecting unit; based on the culture system, efficient, stable and low-cost continuous culture of isochrysis galbana can be realized.
Resumen de: CN120616038A
The invention provides a vegetable protein composition and a production method thereof, and belongs to the technical field of protein. Comprising the following steps: S1, removing bean substance resistance factors; s2, carrying out mixed fermentation on the microalgae, bean substances and protein mulberry, and separating to obtain protein peptide; s3, chelating metal ions of the protein peptide; s4, condensing the protein peptide chelated with the metal ions; s5, preparation of carboxylated pullulan polysaccharide; s6, preparation of hydrophobic modified carboxylated pullulan polysaccharide; and S7, preparing the plant protein composition. The prepared plant protein composition has good physiological activity, through the embedding technology, the storage stability, heat resistance, acid resistance and moisture resistance of protein peptide are improved, growth and development of livestock are promoted, the meat quality is improved, and the plant protein composition has wide application prospects.
Resumen de: CN120617329A
The invention discloses nano-engineered microalgae for photoimmunotherapy of melanoma and a preparation method of the nano-engineered microalgae. The preparation method comprises the following steps: S1, respectively putting tannic acid, potassium carbonate, sodium citrate and HAuCl4. 3H2O into water to prepare a tannic acid solution with the concentration of 4.3 mg/mL, a potassium carbonate solution with the concentration of 20.7 mg/mL, a sodium citrate reduction solution with the concentration of 0.7 mg/mL and a HAuCl4 solution with the concentration of 10.0 mg/mL; s2, dissolving a tannic acid solution and a potassium carbonate solution in the sodium citrate reduction solution to obtain a mixed solution; s3, the mixed solution is heated under stirring, a HAuCl4 solution is dropwise added, stirring continues, and AuNP is obtained; and S4, mixing the AuNP obtained in the step S3 with the microalgae PCC 7942, standing, incubating, and centrifugally washing, so as to obtain the nano-engineered microalgae PCC-coated AuNP. The functionalized microalgae drug delivery system (PCC-coated AuNP) prepared by the invention has the performance of respectively generating O2 and H2 through photosynthesis and photocatalytic reaction under the irradiation of 635 nm red light.
Resumen de: CN120624563A
The invention relates to the field of hydrogen production through semi-artificial photosynthesis, and discloses a microalgae semi-artificial photosynthesis hydrogen production system as well as a preparation method and application thereof. The microalgae semi-artificial photosynthesis hydrogen production system comprises a microalgae-cadmium-based chalcogenide semiconductor heterogeneous aggregate; the microalgae-cadmium-based chalcogenide semiconductor heterogeneous aggregate is composed of a three-dimensional multicellular structure and a cadmium-based chalcogenide semiconductor layered structure, wherein the three-dimensional multicellular structure is formed by mutual adhesion and agglomeration of internal microalgae cells, the cadmium-based chalcogenide semiconductor layered structure is formed on the outer surface of microalgae in situ, and a cadmium-based chalcogenide semiconductor is obtained by in-situ generation of cadmium ions and chalcogenide anions on the surface of the microalgae. According to the microalgae-cadmium-based chalcogenide semiconductor heterogeneous aggregate semi-artificial photosynthesis hydrogen production system provided by the invention, the problem that the hydrogen production time and the hydrogen production rate of a conventional microalgae aggregate photosynthesis hydrogen production system are difficult to consider at the same time is solved through endogenous oxygen inhibition and exogenous photo-induced electron synergy; and the developm
Resumen de: CN120623519A
The invention belongs to the field of microbial fermentation and biopolymer modification, and particularly relates to a preparation method of cross-linked polyglutamic acid and application of the cross-linked polyglutamic acid in microalgae harvesting. The preparation method comprises the following steps: by taking polyglutamic acid fermentation liquor subjected to sterilization, salting-out and redissolving treatment or a solution prepared from polyglutamic acid powder as a raw material, adjusting the pH value to be within a proper range, adding ethanol into the polyglutamic acid fermentation liquor or the solution prepared from the polyglutamic acid powder in proportion, uniformly stirring, collecting pasty precipitate, and weighing; and adding a cross-linking agent into the paste precipitate according to a proper mass ratio of the cross-linking agent to the polyglutamic acid, uniformly mixing, spreading in a drying tray, drying in vacuum drying equipment at a certain temperature to constant weight, crushing by using a crusher, and sieving by using a 40-mesh sieve to obtain a cross-linked polyglutamic acid product. The invention provides another preparation method of the cross-linked polyglutamic acid, the cross-linking reaction and the drying process are fused, the ethanol is used as an accelerant of the reaction, the dosage of the cross-linking agent is small, the product yield is high, the preparation cost is low, and the preparation method is suitable for large-scale pr
Resumen de: CN120617146A
The invention belongs to the technical field of drug delivery systems, and discloses multifunctional microalgae hydrogel as well as a preparation method and application thereof. According to the multifunctional microalgae hydrogel, natural components are taken as carriers, efficient release of drugs at the far end of the intestinal tract is achieved through pH and an intestinal flora enzyme response mechanism, the retention time of the far end of the intestinal tract is remarkably prolonged in combination with the adhesion characteristic, and the time-space distribution of the drugs is monitored in real time by supporting a fluorescent tracing technology. Meanwhile, by precisely regulating and controlling the homeostasis of intestinal flora, the intestinal barrier and the blood brain barrier are repaired, neuroinflammation, neuronal apoptosis and A beta deposition are remarkably improved, and cognitive impairment is reversed. The technical bottlenecks of poor targeting property and low bioavailability of a traditional oral preparation are broken through, a safe and efficient novel drug delivery strategy is provided for intervening neurodegenerative diseases based on the intestine-brain axis, and the preparation has remarkable clinical transformation potential and application value.
Resumen de: CN120624206A
The invention provides a microalgae culture medium and a microalgae culture method, and belongs to the technical field of algae culture, the microalgae culture medium provided by the invention comprises a nitrogen source and a salt agent, the mass ratio of the nitrogen source to the salt agent is 1: (0.7-1.3), and the nitrogen source comprises a phytic acid compound, amino acid and putrescine. When the microalgae culture medium provided by the invention is used for culturing microalgae, the growth rate, the total lipid accumulation rate and the unsaturated fatty acid content of the microalgae can be effectively improved, and the microalgae culture medium provided by the invention is not easy to cause eutrophication of a water body and is suitable for large-scale culture of the microalgae.
Resumen de: CN223316661U
The utility model provides a large-scale blue-green algae culture system. The system comprises a culture pond unit, a supernatant storage unit and a blue-green algae liquid storage unit, the culture pond unit is provided with a plurality of blue-green algae culture ponds, each blue-green algae culture pond is provided with a double-drainage mechanism, and the blue-green algae culture ponds are communicated with the supernatant storage unit and the blue-green algae liquid storage unit through the double-drainage mechanisms; the double-drainage mechanism comprises a first pipeline and a second pipeline, a first liquid outlet is formed in the bottom of the blue-green algae culture pond, a second liquid outlet is formed in the position, away from the ground by a selected height, of the pond body, the first pipeline is communicated with the first liquid outlet, and the second pipeline is communicated with the second liquid outlet; the supernate storage unit is provided with a third pipeline and a first liquid conveying mechanism, the third pipeline is communicated with the blue-green algae culture pond, and the liquid conveying mechanism is used for conveying supernate in the supernate storage unit into the blue-green algae culture pond through the third pipeline. The system can realize separation of cyanobacteria liquid and supernate in the culture pond and cyclic utilization of the supernate.
Resumen de: CN120607967A
The invention relates to a microalgae culture method which comprises the following steps: microalgae species are cultured in the presence of a culture solution, a light source for culture is a flash light source, the light emitting duration of the flash light source each time is 0.1-2.0 ms, and the non-light emitting duration of the flash light source is 0.2-4.5 ms. The flash light source is adopted as a culture light source of microalgae, the illumination power consumption for producing unit microalgae biomass can be effectively reduced, the light energy utilization rate and the microalgae biomass production efficiency are improved, and good economic benefits are achieved.
Resumen de: CN120607984A
The invention relates to the field of microorganisms, and discloses a method for improving the stress tolerance of microalgae endocrine disruptors by utilizing phycobacterium, which comprises the following steps: co-culturing phycobacterium and microalgae; the endocrine disrupter is nonyl phenol; the phycobacterium is rosette-shaped rhizobium and/or brevundimonas vesicula. According to the invention, the effect of improving the stress tolerance of the endocrine disrupter (nonyl phenol) of the microalgae by part of interalgal bacteria of the microalgae is found for the first time. By co-culturing the algae and the microalgae, the survival and growth capabilities of the microalgae under the stress of nonyl phenol can be effectively improved, so that the tolerance and removal capability of the microalgae to high-concentration endocrine disrupter polluted wastewater are expected to be improved in an algae-bacteria co-culture manner.
Resumen de: CN223316676U
The utility model relates to the technical field of biological carbon sequestration, in particular to a biological carbon sequestration reaction system, which comprises a micro-nano bubble aeration device used for generating a micro-nano bubble solution and conveying the micro-nano bubble solution into a mixing tank; the mixing tank is used for mixing the micro-nano bubble solution and the microalgae solution entering the mixing tank and then conveying the mixed solution into the buffer column; and the buffer column comprises circulating equipment which is used for circularly conveying the mixed liquid at the bottom of the buffer column into the buffer column through a reactor pipeline. By applying the biological carbon sequestration reaction system, a micro-nano bubble solution can be generated through the micro-nano bubble aeration device, a microalgae solution of the micro-nano bubble solution entering the mixing tank can be mixed through the mixing tank, and the mixed solution is conveyed into the buffer column; the mixed liquid at the bottom of the buffer column can be circularly conveyed through a reactor pipeline by virtue of circulating equipment, so that in practical application, the photosynthesis and respiration of microalgae can be effectively promoted, and the activity and growth speed of the microalgae are enhanced.
Nº publicación: PL447926A1 08/09/2025
Solicitante:
INST KATALIZY I FIZYKOCHEMII POWIERZCHNI IM JERZEGO HABERA POLSKIEJ AKADEMII NAUK [PL]
POLITECHNIKA KRAKOWSKA IM TADEUSZA KOSCIUSZKI [PL]
INSTYTUT KATALIZY I FIZYKOCHEMII POWIERZCHNI IM. JERZEGO HABERA POLSKIEJ AKADEMII NAUK,
POLITECHNIKA KRAKOWSKA IM. TADEUSZA KO\u015ACIUSZKI
Resumen de: PL447926A1
Przedmiotem zgłoszenia jest sposób wytwarzania pożywki do hodowli sinic z biomasy bakteryjnej po produkcji polihydroksyalkanianów. Wynalazek znajduje zastosowanie w hodowli zwłaszcza Arthrospira platensis.
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