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1256 results about "Vitamin C" patented technology

Vitamin C, also known as ascorbic acid and l-ascorbic acid, is a vitamin found in various foods and sold as a dietary supplement. It is used to prevent and treat scurvy. Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant.

Application of molybdenum disulfide nanoparticles in preparation of tomato leaf fertilizer

The invention provides application of molybdenum disulfide nanoparticles in preparation of a tomato leaf fertilizer, and particularly relates to the technical field of tomato fertilizers. The molybdenum disulfide nano-particles act on tomato plants in a foliage spraying manner, so that the growth of the tomato plants is promoted and / or the fruit quality is improved. The molybdenum disulfide nanoparticles are used as the foliar fertilizer to significantly increase the plant height and stem diameter of tomatoes, increase the chlorophyll content and trace element content of plants, increase the vitamin C content, soluble sugar content and soluble solid content of tomato fruits, and significantly increase the accumulation of Mo and S of plants through the sulfur-molybdenum synergistic effect, so that the yield of the tomatoes is increased. A scientific basis is provided for reasonable application of the nano molybdenum fertilizer, and a way is opened up for high-yield and high-quality cultivation of tomatoes.
Owner:SICHUAN AGRI UNIV

Medicinal and edible anti-alcoholism composition and preparation method thereof

The invention discloses a medicinal and edible anti-alcoholism composition and a preparation method thereof, and relates to the crossing field of biotechnology and food and medicine, the composition comprises the following components: dried orange peel powder, vitamin C, glutathione, phellinus igniarius extract, polygonatum sibiricum extract, oriental wormwood extract, isatis root extract, schisandra chinensis extract, ginseng powder, lucid ganoderma extract and licorice extract. Silymarin, puerarin, white tomato powder, watermelon powder, fucoidin, tomato powder, mung bean powder, celery powder, turmeric powder, hawthorn fruit powder, honey powder, corn peptide, soybean peptide powder, xanthan gum and stevioside are added. The composition provided by the invention has the effect of increasing the content of ethanol dehydrogenase and acetaldehyde dehydrogenase in blood after drinking, and has the capability of promoting alcohol metabolism.
Owner:GINO BIOMEDICAL TECHNOLOGY (ANHUI) CO LTD

Bumetanib oral solid preparation with improved stability and preparation method of bumetanib oral solid preparation

The present invention provides a pharmaceutical composition, the composition comprises a therapeutically effective amount of bumetanib, one or more specific antioxidants and other necessary one or more pharmaceutically acceptable pharmaceutic adjuvants, and the specific antioxidants are selected from one or more of fat-soluble vitamin C derivatives or phenolic antioxidants. In addition, the invention also discloses a method for improving the stability of the bumetanib pharmaceutical composition. According to the technical scheme, the problems of generation and growth of N-nitroso bumetanib and other related substances in the production and storage process of the bumetanib solid preparation are effectively solved, and the drug stability and the medication safety are remarkably improved.
Owner:GRAND PHARMA (CHINA) CO LTD +1

Fertilizer based on oil-tea camellia cattail, preparation method and application thereof

The present invention belongs to the technical field of biomass resource utilization and microbial fertilizers, and specifically relates to a fertilizer based on oil-tea camellia cattail, a preparation method and its application. The fertilizer described in the present invention is prepared by a collaborative fermentation process of Aspergillus niger, Phanerochaete chrysosporium and Bacillus subtilis. The obtained fermentation product is separated into solid and liquid to obtain a solid, the solid being a solid fertilizer, and the liquid being a foliar fertilizer after post-treatment. Both can be used for the cultivation of crops such as tangerines and oil-tea camellias. Based on the microbial collaborative fermentation process, the content of anti-nutritional factors tannin and tea saponin in the obtained solid fertilizer is significantly reduced, which is less than 1.8 g / kg and 0.1% respectively on a dry basis, while maintaining a seed germination index higher than 95%. According to a planting comparative test, the average yield per mu of oil-tea camellias using the solid fertilizer and liquid fertilizer obtained in this application increased by 12%. The average yield per mu of tangerines increased by about 11%, and the sugar, vitamin C, and trace element contents in tangerines were higher than those using traditional fertilizers.
Owner:HUANGSHAN BAWEI ECOLOGICAL AGRI TECH CO LTD

Mesenchymal stem cell hair growth liquid and preparation method thereof

The invention relates to the technical field of biological products, and discloses a mesenchymal stem cell hair growth liquid and a preparation method thereof, and the mesenchymal stem cell hair growth liquid comprises the following components: hair follicle mesenchymal stem cells; a hair follicle mesenchymal stem cell exosome; growth factors: a vascular endothelial growth factor (VEGF), a fibroblast growth factor (FGFs), a keratinocyte growth factor (KGF-7) and interleukin-10 (IL-10); vitamins: vitamin E, vitamin B5, vitamin B2, vitamin B6, vitamin C and biotin; the plant extracts comprise a cacumen biotae extract, a polygonum multiflorum extract, a ginseng extract, a peppermint extract, a purslane extract and a rhodiola rosea extract; other active ingredients: tripeptide and digoxin; the auxiliary material is a hyaluronic acid-collagen peptide graft copolymer; and the balance of a phosphate buffer solution.
Owner:SHANDONG TAIHONG BIOTECHNOLOGY DEV CO LTD

Lactobacillus rhamnosus BN02 for improving joint inflammation and promoting bone health, metagen and application of lactobacillus rhamnosus BN02 and metagen

The invention discloses a lactobacillus rhamnosus capable of improving joint inflammation and promoting bone health, a metagen and application of the lactobacillus rhamnosus, the lactobacillus rhamnosus is lactobacillus rhamnosus BN02, the lactobacillus rhamnosus is preserved in China General Microbiological Culture Collection Center on November 27, 2023, and the preservation number is CGMCC No.29133. The lactobacillus rhamnosus can be used for improving joint inflammation and promoting bone health. The lactobacillus rhamnosus BN02 can reduce the number of gram-negative bacteria in intestinal tracts of arthritis patients, increase the synthesis amount of bone collagen, and is beneficial to promoting absorption of vitamin C by the intestinal tracts, improving joint inflammation and promoting bone health.
Owner:湖南益百益优生物科技有限公司

Short peptide from undaria pinnatifida and application thereof

The invention discloses an oligopeptide from undaria pinnatifida and application thereof. The amino acid sequence of the oligopeptide is YRKD, and the molecular weight is 580.63 g / mol. The polypeptide is identified from undaria pinnatifida through a high performance liquid chromatography technology for the first time, and an unreported oligopeptide capable of inhibiting tyrosinase and cooperating with vitamin C to synergistically inhibit tyrosinase is screened out. The oligopeptide derived from undaria pinnatifida is synthesized by a solid phase method, has the characteristics of safety, no toxicity, good water solubility and good stability, and is combined with vitamin C to generate a synergistic effect and synergistically increase the inhibition effect on tyrosinase, so that the oligopeptide can achieve a better tyrosinase inhibition effect at a lower and more stable concentration; the use concentration of the oligopeptide can be greatly reduced, the stability is enhanced, and the oligopeptide can be widely applied to preparation of cosmetics, medicines, health-care products or food additives, and has important economic value and social significance.
Owner:GUANGZHOU TAIWEI FEED CO LTD

Composition for assisting in reducing blood sugar and improving insulin resistance and preparation method thereof

The invention provides a composition for assisting in reducing blood sugar and improving insulin resistance and a preparation method of the composition, and relates to the technical field of functional fiber processing. The composition for assisting in reducing blood sugar and improving insulin resistance comprises the following raw materials in parts by weight: 10-15 parts of depolymerization type composite cereal fibers, 3-5 parts of konjac fibers, 3-5 parts of psyllium husk powder, 2-3 parts of sesame powder, 1-2 parts of xylitol and 0.1-0.5 part of vitamin C, the mass ratio of wheat fiber to corn fiber to sweet potato fiber to pea fiber in the depolymerization type composite grain fiber is (25-30): (35-40): (20-25): (10-15). The composition disclosed by the invention can assist in reducing blood sugar and has a good effect of improving insulin resistance.
Owner:GUILIN GUSHAN FOOD TECH CO LTD

Method for increasing rice yield

The invention belongs to the technical field of plant genetic engineering, discloses a method for increasing the yield of rice, and aims to solve the technical problem that the yield is reduced due to reduction of photosynthetic efficiency caused by light inhibition of rice under high-light-intensity illumination. According to the method, the expression quantity of the OsJAB1 gene in a target plant is increased, the content of vitamin C in the plant is increased, the photosynthetic electron transfer efficiency is improved, dry matter accumulation and grain development are promoted, and finally the rice yield is increased.
Owner:SANYA NATIONAL INSTITUTE OF SOUTHERN BREEDING CHINESE ACADEMY OF AGRICULTURAL SCIENCES +1

High-efficiency body function repairing active small molecule peptide preparation and preparation method thereof

The invention relates to the technical field of biological preparations, and discloses an efficient body function repairing active small molecule peptide preparation and a preparation method thereof.The efficient body function repairing active small molecule peptide preparation is prepared from 15-22 parts of collagen peptide, 5-9 parts of glutathione, 10-18 parts of whey protein peptide, 5-8 parts of vitamin C, 2-4 parts of vitamin E, 1-3 parts of zinc element, 5-15 parts of astragalus membranaceus extract, 3-8 parts of probiotics and 10-20 parts of a delivery carrier. The molecular weight range of the original protein peptide, the glutathione and the whey protein peptide is 500 to 2000Da. According to the invention, collagen peptide, glutathione, whey protein peptide, vitamins and other components are proportioned to realize an anti-oxidation-repair-anti-inflammatory synergistic effect, and vitamin C, vitamin E, zinc element and an astragalus extract are added to cover multi-dimensional repair of an immune system, so that comprehensive body function repair is realized.
Owner:JIUJIANG YUBIAN BIOTECHNOLOGY CO LTD

Test strip for detecting uric acid in saliva, preparation and detection method therefor and use thereof

A test strip for detecting uric acid in saliva that meets the requirement for room-temperature preservation, a preparation and detection method therefor and the use thereof. The test strip for detecting uric acid in saliva comprises a uricase, a peroxidase, a vitamin C oxidase, a bilirubin oxidase, a color developing agent, and a protective film coated on the test strip for detecting uric acid in saliva. To meet the needs of a target population for long-term monitoring and real-time tracking of changes in their uric acid levels, by means of agent addition, the test strip for detecting uric acid in saliva has prolonged preservation time at room temperature, enables non-invasive, efficient and convenient monitoring of a health status at any time, and timely detection and treatment, allows intuitive visual identification of uric acid levels in saliva by a subject, and meets the needs of a subject for long-term preservation at room temperature.
Owner:ZHONGKE KANGCI MEDICAL TECH SUZHOU CO LTD

High-water-solubility denitroflavin covalent complex as well as preparation method and application of high-water-solubility denitroflavin covalent complex

The invention relates to a high-water-solubility denitroflavin covalent complex as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis and medicinal chemistry. Comprising the following steps: (1) firstly, carrying out bromination reaction on 3-methyl-10-ethyl denitroflavin, so as to obtain 3-methyl-10-(1-bromoethyl) denitroflavin; and (2) coupling the 3-methyl-10-(1-bromoethyl) denitroflavin with vitamin C, so as to obtain the high-water-solubility denitroflavin covalent complex. According to the present invention, the prepared highly water-soluble denitrificin covalent complex has the two-phase solubility of the organic solvent and the water, such that the water solubility of the 3-methyl-10-ethyl-denitrificin is substantially enhanced, and the application range of the denitrificin is expanded. And meanwhile, the denitrified flavin covalent compound also has good antioxidant activity, and the antioxidant duration can be prolonged.
Owner:SHANDONG FENGJIN MEIYE TECH CO LTD

Composition for treating large yellow croaker pyramidoniasis as well as preparation method and application thereof

The invention relates to a composition for treating large yellow croaker pyramidoniasis as well as a preparation method and application thereof, and belongs to the technical field of aquaculture. The composition comprises the following components: curcumin, bile acid, beta glucan, bacillus subtilis freeze-dried powder, marine red yeast freeze-dried powder, vitamin C, vitamin E and ethylicin. When the feed additive is added into basal feed to feed large yellow croakers infected with the trypanosomiasis, the death rate of sick fishes can be effectively reduced, the polypide loading capacity is remarkably reduced, and pathological injuries of livers and spleens of the large yellow croakers are relieved. In addition, the composition can also improve the non-specific immunity of the fish body, improve the liver function, enhance the antioxidant capacity of the liver, and improve the lipase activity of the intestinal tract at the same time. Therefore, the composition can be used as a medicine or a feed additive for treating the large yellow croaker pyramidoniasis, has the advantages of small dosage and remarkable effect, and provides a new technical approach for solving the problem that the current large yellow croaker pyramidoniasis lacks an effective prevention and control means.
Owner:JIMEI UNIV

Sea cucumber and ganoderma lucidum immune homeostasis compound and compound enzymolysis targeted liposome co-delivery preparation process thereof

PendingCN120585937AAntipyreticAnalgesicsBiotechnologyPerillaldehyde
The invention belongs to the technical field of medicine, and discloses a sea cucumber and ganoderma lucidum immune steady-state compound and a composite enzymatic hydrolysis targeted liposome co-delivery preparation process thereof.The sea cucumber and ganoderma lucidum immune steady-state compound is composed of sea cucumber, ganoderma lucidum, American ginseng, dried oyster meat, fructus lycii and perilla leaves; the ganoderma triterpenes release free polysaccharides and are combined with a liposome intestinal targeted delivery system, so that the absorption rate of the polysaccharides is greatly improved to 18-22% from 5% in the traditional process, the ganoderma triterpenes are emulsified and entrapped through a liposome double-layer membrane, and meanwhile, the permeation promotion effect of perillaldehyde in the perilla leaf volatile oil is supplemented, so that the transmembrane transport efficiency is remarkably enhanced, the absorption rate is improved to 12-15% from 2%, and the bioavailability is improved. The zinc element decomposes oyster zinc protein into free zinc ions through a composite enzymolysis technology, and the free zinc ions and vitamin C form a stable chelate, so that the antagonism of intestinal tracts is reduced, the zinc absorption rate is increased from 20% to 45-50%, and a solid foundation is laid for fully playing a compound immune regulation effect.
Owner:ZHONGKUN (HAINAN) BIOTECHNOLOGY CO LTD

Cryoprotectant, preparation method and application of cryoprotectant in coprophilous fungus cryoprotection

The invention discloses a cryoprotectant which comprises glycerol, skimmed milk powder, mannitol, trehalose, vitamin C, fructo-oligosaccharide, inulin and sterile water. By optimizing the components of the cryoprotectant, the activity of the coprophilous fungi can be effectively protected, the survival rate of the intestinal coprophilous fungi in the freezing process is remarkably increased, all the used components are food-grade edible components and have a wide application range and economic effects, the invention further discloses a coprophilous fungi freezing preservation method adopting the cryoprotectant, and the cryoprotectant has good application prospects. The method is simple, easy to operate and suitable for large-scale production and application.
Owner:SHANG OUTDO BIOTECH CO LTD

Drug-loaded polygonatum kingianum extracellular vesicles, preparation method and application of drug-loaded polygonatum kingianum extracellular vesicles in preparation of anti-photoaging products

The invention discloses a drug-loaded polygonatum kingianum extracellular vesicle, a preparation method and an application of the drug-loaded polygonatum kingianum extracellular vesicle in preparation of an anti-photoaging product, and aims to provide a drug-loaded polygonatum kingianum extracellular vesicle which has relatively high encapsulation efficiency and drug loading rate and good stability and biocompatibility, can effectively treat skin UVB inflammation, solves the problem that a drug is insoluble in water, improves the curative effect, and can be used for preparing an anti-photoaging product and a preparation method of the drug-loaded polygonatum kingianum extracellular vesicle. According to the technical scheme, the drug-loaded polygonatum kingianum extracellular vesicles comprise the polygonatum kingianum extracellular vesicles and drug active components loaded in the polygonatum kingianum extracellular vesicles, and the drug-loaded polygonatum kingianum extracellular vesicles comprise the drug-loaded polygonatum kingianum extracellular vesicles and the drug active components loaded in the drug-loaded polygonatum kingianum extracellular vesicles. The pharmaceutical active component is at least one of resveratrol, glutathione, astaxanthin and vitamin C. The invention further discloses a preparation method of the pharmaceutical composition. The invention belongs to the technical field of biological medicine.
Owner:GUANGDONG UNIV OF TECH

Formulations for improving gut health

Various benefits to intestinal health are made by delivery of an active agent to the colon of an animal, including a human. Active ingredients include of riboflavin, vitamin A, vitamin C, vitamin D, vitamin E, vitamin K, folic acid, β-carotene, vitamin B1, niacin, vitamin B5, vitamin B6, biotin, vitamin B12, omega-3 fatty acids and combinations thereof. Benefits include increased concentration of at least one short-chain fatty acid its salt thereof in the intestine, increased microbiome diversity in the intestine, increased beneficial bacteria in the intestine, increased the butyrate synthesis pathway in the intestine, improved barrier function of the intestine, reduced redox potential of the gut, reduced amount of gas produced in the intestine; and stimulation of intestinal immune responses.
Owner:DSM IP ASSETS BV

Cranberry polyphenol and vitamin C corn germ compound beverage and preparation method thereof

The invention relates to the technical field of functional food, and discloses a cranberry polyphenol and vitamin C corn germ compound beverage and a preparation method thereof, the cranberry polyphenol and vitamin C corn germ compound beverage is prepared from corn germ concentrated powder, corn oligopeptide powder, cranberry fermentation extract, L-ascorbic acid and gamma-aminobutyric acid as main raw materials, and cranberry pulp is subjected to lactobacillus fermentation and concentration; performing low-temperature spray drying on L-ascorbic acid and part of the corn oligopeptide powder solution to prepare vitamin C microcapsule powder; premixing the micro-capsule powder with other powder raw materials, and carrying out wet granulation by using a cranberry fermentation concentrated solution as a bonding medium; and finally, carrying out vacuum freeze drying on the wet granules. Physical isolation of the L-ascorbic acid is formed through microencapsulation treatment, and the chemical stability of the L-ascorbic acid is improved; the adopted low-temperature process combination maintains the biological activity of zymoprotein in the corn germs; the wet granulation process ensures the uniform distribution of each component, and endows the finished product with excellent physical properties and reconstituability.
Owner:HEILONGJIANG GUOKANG JIAYUE HEALTH MANAGEMENT CO LTD

Kit and culture medium for osteogenic induced differentiation and preparation method of culture medium

The invention provides an osteogenic induced differentiation kit, a culture medium and a preparation method of the culture medium, and particularly relates to the technical field of stem cells. The kit comprises a DMEM (dulbecco's modified eagle medium) basal culture medium, fetal calf serum, dexamethasone, vitamin C, beta-glycerol phosphate, mesenchymal stem cell osteogenesis induced supernatant, alizarin red S staining solution and acetic acid. According to the kit provided by the invention, the problems of slow calcium nodule formation, small calcium nodule quantity and small calcium nodule in the osteogenic induced differentiation of the umbilical cord mesenchymal stem cells in the prior art are solved, so that the calcium nodule formation of the umbilical cord mesenchymal stem cells is effectively promoted, meanwhile, the calcium nodule quantity can be increased, and the osteogenic induced differentiation period is shortened.
Owner:SHAANXI JINSIMING BIOTECHNOLOGY CO LTD

Ascorbic acid-S-glutathione conjugate and derivative as well as preparation method and application of ascorbic acid-S-glutathione conjugate

The invention provides an ascorbic acid-S-glutathione conjugate, a derivative, a preparation method and application of the ascorbic acid-S-glutathione conjugate. The conjugate is obtained by activating ascorbic acid-6-hydroxyl by halogenation or sulfo group and then connecting the activated ascorbic acid-6-hydroxyl with sulfydryl of glutathione through thioether. The invention also discloses derivatives such as salts, esters, N-acylates, N-alkylates and the like of the compound. The stability of the series of compounds is greatly improved compared with that of vitamin C, and the whitening effect is obviously better than that of vitamin C and glutathione monomers. The invention also discloses a preparation method of the series of compounds and application of the series of compounds as antioxidants, whitening agents, nutritional supplements and the like in cosmetics, foods, feeds and medicines.
Owner:NANJING SHENG DE BAI TAI BIOLOGY SCI & TECH CO LTD

Novel split storage type oligopeptide freeze-dried powder and essence combined skin-brightening skin care product

The invention relates to the technical field of skin care products. The invention aims to provide a split storage type novel skin-brightening skin-care product combined by oligopeptide freeze-dried powder and essence. The split storage type novel skin-brightening skin-care product comprises multiple oligopeptide freeze-dried powder and solvent essence, the multi-oligopeptide freeze-dried powder is prepared from the following raw materials in parts by weight: 90 to 95 parts of water, 1 to 2 parts of glutathione, 1 to 2 parts of mannitol, 1 to 2 parts of carnosine, 0.5 to 1 part of ergothioneine, 0.5 to 1 part of vitamin C and 0.0005 to 0.001 part of a multi-peptide-zinc chelate. The multi-peptide-zinc chelate is prepared from the following raw materials in parts by weight: 1-2 parts of hexapeptide-2, 1-2 parts of nonapeptide-1, 1-2 parts of dipeptide-2, 1-2 parts of tripeptide-10 and 2-3 parts of zinc oxide. According to the invention, various peptides with small molecular weights are chelated with zinc, the characteristics of good permeability and strong skin affinity of the small molecular peptides are fully played, the effects of zinc and other components are effectively played, and the overall use effect is greatly improved. Through compounding of multiple components, the moisturizing and brightening mask has multiple effects of moisturizing, good permeability, whitening, brightening and the like.
Owner:SICHUAN PEPTIDEMEI BIOTECHNOLOGY CO LTD

Culture medium of lacrimal gland type organ and culture method of lacrimal gland type organ

The invention discloses a culture medium of a lacrimal gland organ and a culture method of the lacrimal gland organ, and the culture medium of the lacrimal gland organ is composed of a basic culture medium, R-spodin3, Noggin, B27, N-acetyl-L-cysteine, trehalose, vitamin C, glutathione, an adenylate cyclase activator, A8301, PGE2 and FGF10. The culture medium for lacrimal gland organ culture, provided by the invention, is prepared from various cell factor components according to an optimized proportion, and is simple and reasonable in components and rich in nutrition; when the culture medium is used for culturing the lacrimal gland organoid, the formation and growth of the organoid can be promoted, an in-vivo complex microenvironment is further simulated, the organoid is closer to an in-vivo physiological state, an organoid model is better constructed so as to evaluate the influence of drugs on lacrimal gland functions, and a new platform is provided for drug screening; and a new way is opened up for follow-up treatment of diseases such as xerophthalmia in the future.
Owner:SECOND AFFILIATED HOSPITAL OF COLLEGE OF MEDICINEOF XIAN JIAOTONG UNIV

Formulations for improving gut health

Various benefits to intestinal health are made by delivery of an active agent to the colon of an animal, including a human. Active ingredients include of riboflavin, vitamin A, vitamin C, vitamin D, vitamin E, vitamin K, folic acid, β-carotene, vitamin B1, niacin, vitamin B5, vitamin B6, biotin, vitamin B12, omega-3 fatty acids and combinations thereof. Benefits include increased concentration of at least one short-chain fatty acid its salt thereof in the intestine, increased microbiome diversity in the intestine, increased beneficial bacteria in the intestine, increased the butyrate synthesis pathway in the intestine, improved barrier function of the intestine, reduced redox potential of the gut, reduced amount of gas produced in the intestine; and stimulation of intestinal immune responses.
Owner:DSM IP ASSETS BV

Moisturizing, anti-inflammatory and anti-allergy sodium hyaluronate composition and application thereof

The invention relates to a moisturizing and anti-inflammatory composition, in particular to a moisturizing, anti-inflammatory and anti-allergy sodium hyaluronate composition. The sodium hyaluronate composition is prepared from the following components in percentage by mass: 1 to 15 percent of small molecular weight sodium hyaluronate, 3 to 8 percent of traditional Chinese medicine extract, 1 to 3 percent of polypeptide, 5 to 10 percent of ethanol, 0.5 to 2 percent of vitamin C, 0.1 to 0.5 percent of thickening agent and the balance of deionized water, the traditional Chinese medicine extract is prepared from petroselinum crispum, rosa roxburghii tratt and petasites tatewakianus; the molecular weight of the sodium hyaluronate with the small molecular weight is 2000 to 5000 Da. The moisturizing, anti-inflammatory and anti-allergy sodium hyaluronate composition disclosed by the invention adopts natural traditional Chinese medicine extracts and sodium hyaluronate with small classifications as main raw materials, has multiple effects of moisturizing, anti-inflammatory, anti-allergy and the like, is safe and does not have side effects.
Owner:HANGZHOU SANYAN BIOTECHNOLOGY CO LTD

Ginseng and lucid ganoderma compound polysaccharide liquid and preparation method thereof

The invention discloses ginseng and ganoderma lucidum compound polysaccharide liquid and a preparation method thereof in the technical field of functional food or biological medicine materials, and aims to improve the water solubility, bioavailability and functional activity of ginseng and ganoderma lucidum polysaccharide. Through a chemical-enzyme synergistic modification technology, two brand-new double-modified polysaccharides, namely carboxymethyl-sulfated double-modified ginseng polysaccharides and hydroxypropyl-phosphorylated ganoderma lucidum polysaccharides, are prepared. The two modified polysaccharides are mixed with deionized water, glycerin, sodium alginate and vitamin C according to a specific ratio, and a clarified and stable compound polysaccharide solution is prepared through the processes of ultrasonic dissolution, stirring, homogenization and the like. The polysaccharide solution breaks through the limitation of poor water solubility of natural polysaccharide, the water solubility is remarkably improved, the bioavailability is enhanced, the polysaccharide solution has the functions of immunoregulation, oxidation resistance and the like, the stability is good after the polysaccharide solution is placed at normal temperature after a stabilizer is added, and the polysaccharide solution is suitable for the field of functional food or biological medicine.
Owner:JIANGSU WEILAI CLOUD TECHNOLOGY CO LTD

Silk fibroin aggregate-based dispersed organic active substance as well as preparation method and application thereof

The invention belongs to the technical field of cosmetics, and particularly relates to a silk fibroin aggregate-based dispersed organic active substance as well as a preparation method and application thereof. The preparation method of the silk fibroin aggregate-based dispersed organic active substance comprises the following steps: (1) dissolving an organic active substance in a first solvent to obtain a first solution; dissolving the silk fibroin aggregate in a second solvent to obtain a second solution; (2) slowly adding the second solution into the first solution, mixing and homogenizing to obtain a silk fibroin aggregate-based dispersed organic active substance; wherein the silk fibroin aggregate is prepared by mixing a silk fibroin aqueous solution and alcohol. The silk fibroin aggregate-based dispersed organic active substance prepared by the preparation method can improve the bioavailability of the organic active substance (such as vitamin C, hyaluronic acid, coenzyme Q10, nicotinamide, arbutin, kojic acid, licorice extract, centella extract, chamomile extract or green tea extract) in cosmetics.
Owner:SUZHOU PINGLAN BIOTECHNOLOGY CO LTD

Whitening and anti-aging extracellular vesicle compound as well as preparation method and application thereof

The invention provides a whitening and anti-aging extracellular vesicle compound as well as a preparation method and application thereof. The extracellular vesicle compound comprises extracellular vesicles derived from mesenchymal stem cells and active ingredients loaded in the extracellular vesicles, the active component comprises any one or a combination of at least two of retinoic acid, arbutin, panthenol, nicotinamide, ectoine, vitamine, hyaluronic acid, vitamin C, resveratrol or retinol; the ratio of the extracellular vesicles to the active ingredients is (1-10) * 10 < 8 >: (0.01-1) mg. The skin-care active ingredients are entrapped in the extracellular vesicles derived from the mesenchymal stem cells, so that the delivery efficiency of the skin-care active ingredients can be remarkably improved, the direct irritation of free components to the skin can be reduced, the generation of matrix metalloproteinase-1 (MMP-1) and melanin can be effectively inhibited, the light aging process of the skin can be delayed, and the skin-care composition has excellent whitening and anti-aging effects.
Owner:BEIJING ZHONGKEYI MICROBIAL TECH CO LTD

Functional additive slurry, low-temperature curing copper slurry of N-type TOPCon solar cell, electrode and preparation method

The invention provides functional additive slurry, low-temperature curing copper slurry of an N-type TOPCon solar cell, an electrode and a preparation method, and belongs to the technical field of solar cells. The functional additive slurry comprises 50-90 parts by mass of an organic carrier; 0.1-30 parts by mass of a functional additive; the functional additive comprises at least one of magnesium powder, silicon powder, lead powder, graphite, carbon black, tin-bismuth alloy, gallium, iron powder, vitamin C and aluminum powder; 0.1-10 parts by mass of a dispersant; and 5-40 parts by mass of a solvent. When the functional additive slurry is used in the copper slurry, the copper powder can be uniformly dispersed, and the copper powder is not easy to oxidize in the printing and curing process, so that the resistance is reduced.
Owner:NANTONG T SUN NEW ENERGY CO LTD +1

Method for measuring radiochemical purity and iodine content of sodium iodide capsule for diagnosis by HPLC (high performance liquid chromatography)

The invention relates to the technical field of iodide content detection, in particular to a method for determining radiochemical purity and iodine content of sodium iodide capsules for diagnosis by HPLC (High Performance Liquid Chromatography), which comprises the following steps: setting chromatographic conditions, and connecting a radioactive flow detector and an ultraviolet detector in series; preparing a disodium hydrogen phosphate solution, a glucose solution, a vitamin C solution, a first control solution, a potassium iodate solution, a second control solution, a carrier solution, a first sample solution, a second sample solution, a negative control solution and a test solution; and determining the radiochemical purity and iodide content of the first sample solution and the second sample solution in three batches based on the chromatographic conditions and the determination standard. According to the method, test parameters such as capsule sample analysis time, a pretreatment mode and a sample size are optimized, the radiochemical purity of the capsule is accurately determined, and the iodide content is controlled, so that the problem that main components cannot be accurately quantified and potential radioactive impurities cannot be detected by a traditional diagnosis sodium iodide [131I] capsule determination method is solved.
Owner:XUZHOU ATOMIC HI TECH PHARM CO LTD