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76 results about "Pyrenoid" patented technology

Pyrenoids are sub-cellular micro-compartments found in chloroplasts of many algae, and in a single group of land plants, the hornworts. Pyrenoids are associated with the operation of a carbon-concentrating mechanism (CCM). Their main function is to act as centres of carbon dioxide (CO₂) fixation, by generating and maintaining a CO₂ rich environment around the photosynthetic enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO). Pyrenoids therefore seem to have a role analogous to that of carboxysomes in cyanobacteria.

Acaiberry health care product for Yin-deficiency constitution

InactiveCN104783164ASignificant effectGet the most out of healthy relationshipsFood preparationOfficinalisFood material
The invention discloses an acaiberry health care product for Yin-deficiency constitution. The acaiberry health care product comprises the following raw materials in parts by mass: 1-6 parts of acaiberry, 1-8 parts of chlorella pyrenoidosa, 1-8 parts of loquat leaf, 1-9 parts of the fruit of Chinese wolfberry, 1-10 parts of lily, 1-10 parts of radix polygonati officinalis, 1-12 parts of rhizoma polygonati, 1-5 parts of fingered citron, 1-6 parts of lotus seed, 1-9 parts of spina date seed, 1-5 parts of raspberry, 1-5 parts of emblic leafflower fruit, 1-10 parts of mulberry, 1-6 parts of honey, 0.5-5 parts of cordyceps militaris, 1-5 parts of folium mori, 1-6 parts of fructus alpiniae oxyphyllae, 1-6 parts of the root of kudzu vine, 1-7 parts of horseradish tree leaves and 1-5 parts of Gynura procumbens, and also can comprise 1-9 parts of pawpaw. According to the holism concept of traditional Chinese medicine, yin and yang equilibrium theory and nine constitutions of the human body, the acaiberry serves as a main raw material, the pharmaceutical/food resource raw materials and new food raw materials such as chlorella pyrenoidosa, the fruit of Chinese wolfberry, loquat leaf, lily and radix polygonati officinalis are particularly and elaborately added, and the optimal compatible raw materials are elaborately and scientifically searched, so that the raw materials are complementary with one another, and healthy relation and unique advantages of dietary therapy, herbal nourishment, health maintenance and longevity are fully exerted.
Owner:GUIZHOU GUANGJITANG PHARMA

Preparation method of microalgae biodiesel with high caloric heat

The invention relates to the technical field of biological engineering and preparation of clean energy sources, in particular to a preparation method of microalgae biodiesel with high caloric heat. The preparation method comprises the following steps of using chlorella as a raw material to prepare chlorella grease; esterifying the chlorella grease, and centrifugally delaminating, so as to obtain alower biodiesel crude product; continuing to distill, so as to obtain the microalgae biodiesel with high caloric heat. The preparation method has the advantages that the microalgae is promoted to quickly grow under the conditions of relatively moderate light radiation and light quality, highly-concentrated soil extracting solution as culture liquid, proper temperature and the like, so that the diesel production efficiency is improved; the chlorella is single cell pyrenoid chlorella, the pyrenoid chlorella has stable suitability to the environment, the rich nitrogen and phosphor elements and the inorganic elements in biogas slurry can be absorbed, the function of promoting accumulation of chlorella cell grease is realized, the production efficiency of the biodiesel is improved, the maximumcontent of grease is obtained, the content of carbon in the grease is increased, and the purpose of improving the caloric heat of the biodiesel is realized.
Owner:雷春生

Chlorella pyrenoidosa, biological environment restoration liquid prepared therefrom and application of chlorella pyrenoidos

The invention discloses chlorella pyrenoidosa, biological environment restoration liquid prepared therefrom and application of the chlorella pyrenoidosa, relates to a green alga active cell biologicalrestoration liquid, and aims to provide chlorella for environment restoration and application of the chlorella. The chlorella is the Chlorella pyrenoidosa ZXL X, and the depositary authority is ChinaCenter for Type Culture Collection, the depositary address is Wuhan University, Wuhan, Hubei Province, the depositary date is November 18, 2020, and the depositary number is CCTCC NO: M 2020760. Thechlorella pyrenoidosa is used for improving the soil environment, promoting crop yield increase and improving crop quality. The restoration liquid is prepared by the following steps: culturing chlorella pyrenoidosa with a nutrient solution to an exponential growth phase and mixing the cultured chlorella pyrenoidosa with an alginate solution; extruding the mixed solution to a calcium chloride solution to obtain globules; and mixing with the globules with a working solution to obtain the biological environment restoration liquid. The environment restoration liquid provided by the invention is high in content value, does not produce drug residues, and can realize agricultural sustainable development.
Owner:范秀娟

Low-cost, high-biomass and high-protein-content chlorella pyrenoidosa culture method

ActiveCN111349565AOvercoming technical bias against Chlorella growthIncrease biomassBacteriaUnicellular algaeBiotechnologyCellulose
The invention provides a low-cost, high-biomass and high-protein-content chlorella pyrenoidosa culture method. The method specifically comprises the steps of carrying out straw saccharification on recombinant strains, and carrying out mixotrophic culture on chlorella by taking straw saccharification liquid as a cheap raw material. The method comprises the following steps of: (1) activating recombinant strains of clostridium thermocellum; (2) carrying out straw saccharification: transferring pretreated straws into an anaerobic fermentation system, adding a culture medium and the recombinant strains, and carrying out straw saccharification; (3) preparing a chlorella pyrenoidosa culture solution; and (4) carrying out mixotrophic culture on chlorella pyrenoidosa: inoculating a proper amount ofchlorella species into the culture solution, and carrying out mixotrophic culture under proper light intensity. According to the method, the ability of degrading lignocellulose to produce glucose byclostridium thermocellum fiber bodies is further improved through the recombinant strains of clostridium thermocellum; and the chlorella pyrenoidosa obtained through mixotrophic culture is high in biomass and high in protein content, so that the production cost of chlorella is reduced, and the market competitiveness of chlorella pyrenoidosa and derivative products thereof is improved.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Production technology for high-density culture of chlorella by utilizing fermentation method

The invention discloses a production technology for high-density culture of chlorella by utilizing a fermentation method. The production technology is characterized in that firstly, chlorella seed culture is carried out through heterotrophic cultivation, in the fourth stage of the heterotrophic cultivation process, a basal culture medium and a fed-batch culture medium are selected and used for co-culture, and the two media are utilized in combination with fermentation tanks to perform high-density heterotrophic cultivation on chlorella pyrenoidosa; besides, by adopting a semi-continuous fed-batch cultivation method and measuring the growth rate, dry weight, protein content and the like of chlorella, the optimum culture condition for maintaining of the stable growth of chlorella strains is determined; the experimental result shows that the pH is 5.5-7.5, DO is larger than or equal to 20%, the best ratio of carbon to nitrogen C/N for feed-batch culture equals to 100, the suitable carbon concentration for feed-batch culture is 40-60 g/L, the reclaiming rate is 1/5, chlorella can realize high-density stable growth, and after 4-5 days' fermentation, the dry weight can reach 100 g/L or above, and the protein content can reach 58 g/L or above. The production technology not only realizes pure culture, but also improves the algae quality to a greater extent; besides, chlorella prepared by adopting the production technology contains other multivitamins at the same time, and further meets the nutritional requirements of human bodies.
Owner:QINGDAO KEHAI BIOLOGICAL

High throughput screening system, screening method and preparation method for chlorella functional component CPE

The invention relates to a high throughput screening system, screening method and preparation method for a chlorella functional component CPE. The screening method comprises 1) an antioxidant test, 2) a cell immunoregulation test, 3) a redox metal ion chelation test, and 4) an advanced glycation end product AGEs inhibition test. The preparation method comprises adding chlorella pyrenoidosa powder into distilled water, heating the mixture at 110-130 DEG C for 30-60min under high pressure, carrying out extraction, taking out a sample, cooling the sample at the room temperature, carrying out centrifugation at a rotation rate of 10000r for 30min, carrying out vacuum suction filtration on the supernatant, storing the filtrate at 4 DEG C for nest use, adding the same amount of distilled water into the chlorella mud obtained by centrifugation, carrying out resuspension, repeating the above processes, merging the filtrates obtained by the two processes, and carrying out freeze drying to obtain chlorella CPE extract powder. The preparation method has a high yield of the chlorella functional component CPE, and the extract is rich in nucleic acid and proteins. The preparation method is suitable for industrial production, reduces a development cost of microalgae energy and improves the comprehensive utilization degree of microalgae energy.
Owner:EAST CHINA UNIV OF SCI & TECH

Method for realizing efficient hydrogen production based on chlorella cell biomineralization

ActiveCN111471722AChange basic propertiesAchieve spontaneous transformationOrganic-compounds/hydrides/coordination-complexes catalystsUnicellular algaeCatalytic effectPyrenoid
The invention discloses a method for realizing efficient hydrogen production based on chlorella cell biomineralization. The invention belongs to the technical field of biological energy, and particularly relates to a method for achieving efficient hydrogen production based on chlorella cell biomineralization. The invention aims to solve the problems that existing biological hydrogen production processes are complicated and high in cost, and cannot realize large-scale hydrogen production. According to the method, chlorella pyrenoidosa is taken as a basic living cell, layer-by-layer self-assembly is carried out on the surface of the chlorella pyrenoidosa based on electrostatic interaction, and finally a functional MOF material which takes GMP as a ligand and Cu<2+> as a metal center and hasnano-enzyme activity is formed. By adding an oxygen consumption substrate, the oxygen concentration of a system is quickly reduced under the catalytic action of MOF, so that efficient and quick hydrogen production is realized. The whole system is easy to construct, mild in process and environmentally friendly, meanwhile, the functionalized MOF shell layer not only serves as a catalytic effect, butalso can maintain the basic activity of cells, and the life cycle of the cells in an unfavorable environment is prolonged. The method is used for biological hydrogen production.
Owner:HARBIN INST OF TECH

Method for accumulating grease mutant chlorella quickly by mutating pyrenoid freshwater chlorella by laser

The invention provides a method for accumulating grease mutant chlorella quickly by mutating pyrenoid freshwater chlorella by laser, comprising the following steps: (1) culturing the pyrenoid freshwater chlorella cell to the logarithmic growth phase by using the fluorescent lamp as the light source; (2) taking and pouring 20ml of chlorella solution in the logarithmic growth phase into a small wide-mouth bottle, irradiating by using the semiconductor laser for 0.9-1.1 minutes, and stirring under magnetic force during irradiating to obtain a mutant chlorella; and (3) pouring the irradiated and mutated chlorella solution into a 50ml triangular flask filled with the BG11 nutrition salt with the final concentration of 1 / 4 times, culturing for 20 days at the temperature of 20-25 DEG C and the light intensity of 1,800-2,000lx, transferring the chlorella solution into a 300ml triangular flask, continuing to culture for 20 days, transferring the chlorella solution into a 1,000ml triangular flask, and continuing to culture for 26 days, wherein the BG11 nutrition salt with final concentration of 1 / 4 times is added every eight days, and the chlorella solution is shaken for 3 times every day in the culturing stage. The method is easy and practical, low in cost and high in efficiency.
Owner:SHANDONG UNIV OF TECH

Microalgae nutrition repair liquid for relieving grassland desertification

The invention discloses a microalgae nutrition repair liquid for relieving grassland desertification, which comprises a microalgae mixed liquid, the microalgae mixed liquid comprises seven active microalgae, and the added microalgae comprises the following components in parts by weight: 5-40 parts of hylothrix tadeeri, 5-40 parts of hylothrix wonderi, 10-50 parts of microcoleus vaginalis, 5-40 parts of pseudocladoidea, 10-50 parts of monofidus microfidus and 30-80 parts of chlorella pyrenoidosa, and the microalgae mixed liquid comprises the following components in parts by weight: 5-40 parts of hylothrix tadeeri, 5-40 parts of hylothrix wonderi, 10-50 parts of microcoleus vaginalis and 30-80 parts of chlorella pyrenoidosa. In addition, 10-50 parts of nitrogen-fixing anabaena or 20 parts of cotton algae are selected to be added. Aiming at the grassland desertification region, the nutrient restoration liquid can restore soil, supplement natural nitrogen, activate soil trace elements, improve plant stress resistance and prevent plant diseases and insect pests, the seven microalgae have good compatibility, the number of microalgae active cells in each 1mL of the nutrient restoration liquid can reach more than 106, and the nutrient restoration liquid has good application prospects. The storage life of the nutrient repair liquid reaches 18 months, the culture process is obtained through a large number of experiments, and the culture efficiency is high.
Owner:内蒙古阿尔格生命科学有限公司

Method for fluorescence detection of biotoxicity of atrazine by using chlorella pyrenoidosa

ActiveCN114441491AThe effect of toxicity determination is intuitive and fastIntuitive and fast determination of resultsFluorescence/phosphorescenceVegetable oilAtrazine
The invention relates to the technical field of chlorella pyrenoidosa, and provides a method for fluorescence detection of biotoxicity of atrazine by using chlorella pyrenoidosa, the biotoxicity of atrazine is detected by using chlorella pyrenoidosa under the condition of vegetable oil, the vegetable oil is methylated and ethylated vegetable oil, and the content of the methylated and ethylated vegetable oil is less than 1%. Comprising the following steps: taking atrazine standard solutions with a series of concentrations, adding a vegetable oil solution, then adding into a chlorella pyrenoidosa solution, uniformly mixing, controlling the volume ratio of the chlorella pyrenoidosa solution to the vegetable oil solution to the atrazine standard solution to be 1: (1-2): (1-2), darkly placing for 10 minutes, measuring each chlorophyll fluorescence kinetic parameter of the chlorella pyrenoidosa, and calculating the chlorophyll fluorescence kinetic parameter of the chlorella pyrenoidosa according to the chlorophyll fluorescence kinetic parameter of the chlorella pyrenoidosa. And determining the biotoxicity of atrazine. According to the technical scheme, the problem that a method for detecting the biotoxicity of atrazine in the prior art is long in determination period is solved.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for determining influence of pollutants on content of active oxygen in green alga cells

PendingCN112033878AAccurate judgment of active oxygen contentJudgment of active oxygen contentMicrobiological testing/measurementMicroorganism based processesPyrenoidCell
The invention discloses a method for determining the influence of pollutants on the content of active oxygen in green alga cells. Chlorella pyrenoidosa is used for evaluating the influence of a typical pollutant azole bactericide (clotrimazole) on the content of active oxygen in green alga cells; and evaluating the influence of pollutants on active oxygen in the green alga cells according to the DCF fluorescence intensity of the single green alga cells under the action of the azole bactericide pesticide. According to the method, the detection result of the change of the content of the active oxygen in the green alga cells is more accurate, and the problem that the fluorescence intensity measurement is inaccurate due to the change of the number of the cells caused by exposure of pollutantsat different concentrations is solved. The fluorescence intensity of DCF is in direct proportion to the content of active oxygen in cells, so that the influence of pollutants on the content of activeoxygen in cells under a certain concentration can be reflected more intuitively. The method is simple, convenient and rapid in test, low in detection system background, high in sensitivity and good inrepeatability.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Preparation method and application of three-dimensional porous algae-based/chitosan aerogel used for uranium-bearing wastewater treatment

The invention relates to a preparation method of a three-dimensional porous algae-based/chitosan aerogel and application of the three-dimensional porous algae-based/chitosan aerogel in treatment of uranium-bearing wastewater. The preparation method of the three-dimensional porous algae-based/chitosan aerogel used for uranium-bearing wastewater treatment comprises the following steps: taking chitosan and chlorella pyrenoidosa as base materials, utilizing ammonium bicarbonate and sodium bicarbonate to foam inside the aerogel and form holes, and then carrying out low temperature refrigeration andsolvent replacement to prepare the three-dimensional porous algae-based/chitosan aerogel. The three-dimensional porous algae-based/chitosan aerogel prepared in the invention is large in specific surface area and controllable in volume, can be separated from a solution easily, and has high mechanical strength. The adsorption and saturation capacity of three-dimensional porous algae-based/chitosanaerogel for uranium reaches 575 mg/g, the removal rate for uranium below 100 mg/L reaches up to 95% or more, and the three-dimensional porous algae-based/chitosan aerogel can be applied to enrichmentand removal of uranium in the water solution.
Owner:NANHUA UNIV

Tianshan cold water algae functional toothpaste and preparation method thereof

The invention relates to the technical field of toothpaste and a preparation method thereof, in particular to tianshan cold water algae functional toothpaste and a preparation method thereof. The toothpaste comprises the following raw materials of chlorella pyrenoidosa nano superfine powder, calcium carbonate, xylitol, hydrated silica, glycerinum, methylparaben, sodium lauryl sulfate, tetrasodiumpyrophosphate, cellulose gum xanthan gum, sodium benzoate, edible essence and reverse osmosis secondary purified water, xylitol and glycerinum are added into the reverse osmosis secondary purified water to obtain first slurry, the first slurry is mixed with chlorella pyrenoidosa nano superfine powder, calcium carbonate, tetrasodium pyrophosphate, cellulose gum xanthan gum, methylparaben, sodium lauryl sulfate, hydrated silica and sodium benzoate to obtain second slurry, and the second slurry is emulsified with the essence dissolving solution to obtain the tianshan cold water algae functional toothpaste. The preparation method is simple and convenient; and the obtained tianshan cold water algae functional toothpaste can maintain gingiva, relieve gingival bleeding, remove bad breath, and prevent periodontitis, and then the comprehensive health of the oral cavity is realized.
Owner:新疆新光生物科技有限公司

Heterotrophism-dilution-light induction culture method for desert chlorella pyrenoidosa

The invention relates to a heterotrophism-dilution-light induction culture method for desert chlorella pyrenoidosa. According to the method, a heterotrophic mode and an autotrophic mode are combined, so that the biomass and the protein content of the desert chlorella pyrenoidosa are greatly improved, the purpose of efficiently producing a large amount of desert chlorella pyrenoidosa with high protein content is achieved, the chlorella pyrenoidosa cell biomass with relatively high concentration can be obtained in a short time, the accumulation of substances such as protein and chlorophyll in the chlorella pyrenoidosa can be induced, the quality of the chlorella pyrenoidosa is improved, and the comprehensive utilization value of the chlorella pyrenoidosa is increased. Besides, the method has the characteristics of simplicity and convenience in operation, high practicability, easiness in realization of continuous production and the like, and is very beneficial to large-scale popularization and application, so that a large amount of desert chlorella pyrenoidosa powder with high protein content can be quickly and efficiently obtained, the technical support is provided for production of the high-quality desert chlorella pyrenoidosa powder, and the requirements of industrial production are met.
Owner:新疆金正生物科技有限公司

Chlorella pyrenoidosa antioxidant peptide and preparation method thereof

The invention discloses a chlorella pyrenoidosa antioxidant peptide and a preparation method thereof, chlorella pyrenoidosa is used as a raw material, and the chlorella pyrenoidosa antioxidant peptide is obtained through wall breaking treatment of chlorella pyrenoidosa powder, extraction of chlorella protein, preparation of chlorella polypeptide, separation and purification of chlorella polypeptide, and freeze drying. The amino acid sequence of the antioxidant peptide is :VPADDL. The chlorella protein is extracted through adoption of ultrasonic assistance of an enzymolysis method, the salt content is low, and the protein extraction rate is high. Various enzymes are used for preparing the chlorella antioxidative peptide, and the removal rate of hydroxyl radicals is used as a discrimination index, so that the chlorella antioxidative peptide can be more accurately prepared. The algal polypeptide is prepared by adopting the ultrafiltration membrane with the molecular weight cutoff of 3000Da, so that convenient conditions are provided for obtaining purer algal antioxidant peptide through chromatographic separation in the next step. A gel chromatography separation mode is adopted according to different molecular weights of the algae polypeptides, and the purity of the obtained algae polypeptides is higher.
Owner:DONGGUAN UNIV OF TECH
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