14results about How to "Has antioxidant activity" patented technology

The invention discloses polypeptide hydrogel based on oxidized ganoderan and application. The polypeptide hydrogel is simple in preparation method, rapid in gelling, good in stability and capable of resisting oxidation activity and inhibiting tyrosinase activity. The polypeptide hydrogel provides a physical barrier for the bioactive peptide, so that the influence of the gastrointestinal tract environment is overcome, 71% of polypeptide is released in the intestinal tract, the bioavailability of the peptide is improved, and the problem that the use condition of the polypeptide is limited is effectively solved.

The invention relates to a natural plant extract food antioxidant additive and a preparation method thereof, the natural plant extract food antioxidant additive comprises a core material and a wall material, and the core material comprises the following components by mass: 10-20 parts of a polyphenol compound, 10-15 parts of a polysaccharide compound and 20-30 parts of a flavonoid compound. The preparation method comprises the following steps: mixing sodium alginate and a polysaccharide compound to prepare a polysaccharide microcapsule; mixing a polyphenol compound, a flavonoid compound and the polysaccharide micro-capsule, and dispersing with an emulsifier to obtain an emulsified dispersion liquid; and mixing a chitosan solution and a polylysine solution to obtain a mixed wall material solution, adding the mixed wall material solution into the emulsified dispersion liquid to prepare a microcapsule product, washing, and freeze-drying to obtain the food antioxidant additive of the natural plant extract. The additive has the effect of improving the anti-oxidation performance, can provide long-acting and lasting anti-oxidation protection, and has a certain health-care effect.

The invention relates to the field of composite plates, and discloses a production process for producing a waste spinning composite plate by using waste clothes, the waste spinning composite plate comprises waste clothes, waste polyvinyl chloride, high density polyethylene, modified lignin, modified composite particles, an antioxidant, a heat stabilizer and a lubricant; the modified lignin is prepared by reacting DOPO with 2-octenyl succinic anhydride and then grafting with lignin; the modified composite particles are prepared by depositing mesoporous silica on the surface of aluminum hydroxide coated ammonium polyphosphate by utilizing a pore forming agent and tetraethyl orthosilicate and modifying through a fluorine-containing copolymer. Fibers in waste clothes are molten into an organic material and extruded into a plate, and the mechanical strength of the plate is improved by utilizing the strength of the fibers; in addition, due to the addition of the modified lignin and the modified composite particles, the board is endowed with excellent flame retardance, water resistance, ultraviolet yellowing resistance and mechanical properties.

The invention discloses an application of vanillyl butyl ether in an external preparation for skin, a vanillyl butyl ether cyclodextrin inclusion compound and a preparation method of a fiber mask. The vanillyl butyl ether is used as an antioxidant active component and a heating component in the external preparation for skin, and the addition amount of the vanillyl butyl ether in the external preparation for skin is 0.01-10wt%; the invention also provides a preparation method of the vanillyl butyl ether cyclodextrin inclusion compound. The preparation method comprises the following steps: (1) dissolving vanillyl butyl ether in ethanol to prepare a vanillyl butyl ether alcohol solution; (2) dissolving the cyclodextrin in water, and stirring until the cyclodextrin is completely dissolved to prepare a cyclodextrin aqueous solution; and (3) dropwise adding the vanillyl butyl ether alcohol solution prepared in the step (1) into the cyclodextrin aqueous solution prepared in the step (2), stirring for clathration, removing the solvent, and drying. The vanillyl butyl ether is coated, the solubility of the vanillyl butyl ether in water is improved, and the nanofiber thermal inductance mask is prepared by an electrostatic spinning method and has ideal effects of oxidation resistance, heating and the like.

The invention discloses a preparation method and application of a polylactic acid / chitosan double-layer membrane with oxidation resistance. The preparation method is characterized in that a polylactic acid / chitosan double-layer film is prepared by a solution casting method, the inner layer is a chitosan film, and the outer layer is a polylactic acid film; glycerol is used as a plasticizer, and one of tea polyphenol, a bamboo leaf antioxidant, phytic acid, a rosemary extract and ascorbic acid is used as an antioxidant to be added into the chitosan solution to prepare a chitosan-based membrane solution; polylactic acid is dissolved in dichloromethane to prepare a polylactic acid membrane solution; and drying and molding the chitosan-based membrane liquid, pouring the chitosan-based membrane liquid into the polylactic acid membrane liquid, and removing the solvent to obtain the polylactic acid / chitosan double-layer membrane. The polylactic acid and the chitosan are used as base materials of the double-layer film, and the natural antioxidant is introduced, so that the mechanical property and the oxidation resistance of the double-layer film are effectively improved.

The application discloses a total phenolic acid conversion product of Salvia miltiorrhiza stems and leaves with myocardial protection function and a preparation method and application thereof, wherein the conversion product is obtained by adjusting the pH of the total phenolic acid of Salvia miltiorrhiza stems and leaves with hydrochloric acid and then adopting a high-temperature and high-pressure sterilization pot to react. In the conversion product, the content of salvianolic acid A is 7-9%, the content of danshensu is 15-17%, the content of protocatechuic aldehyde is 1-2%, the content of rosmarinic acid is 13-15%, the content of shikonin is 1-2%, and the content of salvianolic acid B is 3-4%. The total phenolic acid conversion product of Salvia miltiorrhiza stems and leaves provided by the application has the activities of antioxidation, myocardial protection and oxidation damage reduction, protection of vascular endothelial cells and myocardial cells, and the function of free radical elimination and oxidation damage reduction, has reliable curative effect, good safety, low adverse reaction, and can be used for preparing a cardiovascular protection medicine.

The invention belongs to the technical field of microorganisms, and discloses a Mattilomyces spinosus strain with antioxidant activity, a composition containing the strain and a culture medium for culturing the strain. The preservation number of the fumatinia spinosa strain is CGMCC (China General Microbiological Culture Collection Center) NO. 42557. The strain and the fermentation culture thereof can remove DPPH free radicals, ABTS free radicals and hydroxyl free radicals.

This invention discloses a red pigment-producing Streptomyces spectabilis ( Streptomyces spectabilis This invention discloses a method and application for pigment extraction from *Streptomyces spectinomyces* S-13. The method involves fermenting *Streptomyces spectinomyces* S-13 with the addition of a surfactant to extract the pigment. This method releases intracellular pigments into the fermentation broth, significantly increasing pigment yield and simplifying the extraction and purification process. The red pigment produced by *Streptomyces spectinomyces* S-13 exhibits excellent stability, antioxidant activity, and antibacterial effects, making it suitable for applications in the printing and dyeing industry. The pigment extraction method described in this invention offers advantages such as short production cycle, low cost, safety, and environmental friendliness, overcoming the limitations of traditional microbial pigment production processes, including high extraction difficulty, low yield, and limited applicability.

The invention discloses a small molecule peptide FDRIW with antioxidant activity and application thereof, and belongs to the technical field of enzymolysis processing products. The amino acid sequence of the small molecule peptide FDRIW is as shown in SEQ ID NO. 1. The small molecule peptide FDRIW is applied to preparation of a health care product with an antioxidant activity effect, and is applied to preparation of a medicine with an oxidative stress inhibition effect. The small molecule peptide with high scavenging activity on DPPH free radicals is obtained through screening, IC50 is equal to 3.63 mg / ml, and the small molecule peptide has the potential of being used as an antioxidant functional product.

The present application belongs to the field of microbial application and feed processing technology, and discloses a bacillus subtilis, named bacillus subtilis YT1, which is preserved in China Center for Type Culture Collection, located at Wuhan University, No. 299, Bayi Road, Wuchang District, Wuhan City, Hubei Province, with a preservation number of CCTCC NO: M 20242767 and a preservation date of December 10, 2024. The present application also discloses a microbial preparation and the application of the bacillus subtilis or the microbial preparation in the processing of silage. The present application first simultaneously possesses high efficient lignocellulose degradation ability, excellent fermentation promotion characteristics, significant antioxidant activity and good probiotic characteristics in a strain of bacillus subtilis. This characteristic enables a single bacterial agent to achieve multiple goals such as fiber degradation, fermentation promotion, oxidation protection, which traditionally requires multiple compounded bacterial agents, and fundamentally overcomes the problems of poor compatibility between strains, unstable synergistic effect and high application cost of existing compounded additives.

The invention provides asparagus composite fruit wine and a preparation method thereof, and belongs to the technical field of fruit wine brewing. The preparation method comprises the following steps: freezing and thawing rhizoma polygonati, lucid ganoderma, fructus lycii, fructus mume, radix astragali, semen cassiae and radix salviae miltiorrhizae, crushing to obtain traditional Chinese medicine powder, mixing the traditional Chinese medicine powder with water, decocting, and filtering to obtain filtrate A; performing freeze drying and superfine grinding on asparagus to obtain asparagus powder, mixing the asparagus powder with water, performing enzymolysis, and filtering to obtain filtrate B; mixing and pulping the filtrate A, the filtrate B, longan aril, red dates, lily and water, inoculating strains for primary fermentation, then adding cane sugar for secondary fermentation, finally adding honey for tertiary fermentation to obtain fermentation liquor, and clarifying and sterilizing the fermentation liquor to obtain the asparagus composite fruit wine. The asparagus is used as a main raw material, traditional Chinese medicinal materials are added on the basis for compounding, and the prepared asparagus composite fruit wine is fresh and cool in taste and has the functions of resisting oxidation, improving immunity and the like.

The invention relates to the technical field of medicines, and provides a triterpenoid compound in ganoderma leukemia as well as a preparation method and application of the triterpenoid compound. Adding pure methanol according to a solid-liquid ratio of 1: 10, extracting at 60 DEG C for 2h (hour, hour), filtering to obtain a methanol extracting solution, repeating for three times, and combining filtrates; concentrating the filtrate to 1 / 5 of the original volume at 50 DEG C, and adding distilled water with the volume fraction of 2 / 3 until the methanol concentration is 60% to obtain a preparation raw material; the preparation raw materials are subjected to coarse separation in a C18 column. The invention proves that the DM (12-O-Deacetuleuccontextin M) has antioxidant activity, can inhibit the activity of alpha-glucosidase, cholesterol esterase and pancreatic lipase, and shows a multi-target lipid-lowering potential. In a high glucose induced nematode model, the DM can be used for effectively reducing lipid accumulation and lowering the level of TG (triglyceride) and NEFA (non-esterified fatty acid), and the DM can be used for effectively reducing the level of TG (triglyceride) and NEFA (non-esterified fatty acid).

The application discloses application of an orange bony fish bone antioxidant peptide in preparation of antioxidant products and belongs to the technical field of antioxidant active peptides.The amino acid sequence of the orange bony fish bone antioxidant peptide is shown as SEQ ID NO.3-14, the 12 polypeptides are proposed to have antioxidant activity for the first time, the ABTS activity and ORAC activity of the polypeptides are 1.70-4.29 times and 2.79-5.90 times of Trolox respectively.The polypeptides are proposed to activate the enzyme and non-enzyme antioxidant system in zebra fish by regulating the Keap1-Nrf2 pathway, so that the resistance of the body to oxidative stress is enhanced.The potential application of the orange bony fish bone antioxidant peptide in functional products has important significance.

This application discloses a composition and its preparation and application of permeation-enhancing liposomes, belonging to the field of cosmetic production technology. The technical solution is as follows: a composition composed of Forsythia suspensa extract, Lysimachia christinae extract and Sophora flavescens root extract, wherein the mass ratio of Forsythia suspensa extract, Lysimachia christinae extract and Sophora flavescens root extract is 2-8:0.5-3:2-6. The composition provided by this application can scavenge free radicals and reduce oxidative damage. In the experiment, the above substances produced a good synergistic effect when used in combination.