30results about How to "Strong free radical scavenging activity" patented technology

The invention discloses a novel whitening toner, which mainly consists of such functional ingredients as cherry blossom, undaria pinnatifida, calluna vulgaris and the whitening toner. In accordance with important factors affecting skin color, such as tyrosinase activity, ultraviolet rays, radicals, skin moisten and the like, the whitening product which is pure natural, comprehensive in function, safe and efficient is developed. The whitening toner disclosed by the invention can overcome shortcomings in the prior art; the whitening toner is simple in preparation method, low in cost and applicable to popularization in a large scale; and the whitening toner, when used for a long time, has a whitening effect, and the whitening toner is suitable for various people.

The invention discloses a Chinese mahonia extracting solution as well as a preparation method and an application thereof. The Chinese mahonia extracting solution prepared by water extraction has good free radical scavenging activity and the effect of inhibiting peroxidation of lipoxygenase and lipid, and due to the characteristics, the Chinese mahonia extracting solution has the effects of scavenging excessive free radicals accumulated in bodies, preventing formation of lipofuscin, protecting cell membranes, maintaining the normal metabolism of cells and prolonging organism senescence; when being applied to cosmetics, the Chinese mahonia extracting solution has remarkable effects of improving facial laxity and reducing generation of wrinkles and black spots.

The invention relates to a new coumarin active content, i.e. pigeon pea lactone extracted and separated from cajan leaves, an extraction and separation method and an application thereof. The structure of the compound is shown as a figure 1. The invention adopts the technical scheme that agricultural waste of cajan leaves is used as raw material which is extracted by a solvent; the extracting solution is concentrated and dispersed in water; an ultrasonic oscillation flocculation technology, a bubble column extraction technology and a column chromatography separation technology in positive-phase silica gel are adopted and combined with a low-temperature crystallization and recrystallization technology to obtain the content with the purity higher than 95 percent; and the anti-oxidation activity and the action of the chemical content on cardiovascular diseases are detected by a DPPH model, a beta-renieratene-linoleic acid model, an in-texture SOD enzyme model, a platelet aggregation model induced by ADP in corpora and an aorta systole model induced by phenylephrine. Results show that the active content has favorable free radical scavenging activity, anti-oxidation activity in corpora and in vitro, platelet aggregation restraining action in corpora and a certain hemangiectasis action. Meanwhile, the preparation method of the pigeon pea lactone in the invention is easy and practical and can obtain a product with high purity high yield and high added value in a short period which is suitable for industrialized production and application, can be further developed and researched into a new antioxidant as an additive for medicines, foods and cosmetics.

The invention provides chicken-blood-cell antioxidant peptide and a fermentation preparing method thereof. The method includes the following steps of (1) culture activation; (2) blood cell medium preparing; (3) inoculation fermentation; (4) fermentation liquor separation and purification. The amino acid sequence of antioxidant peptide is shown as SEQ ID NO:1. The chicken-blood-cell antioxidant peptide has the high free radical scavenging activity, has the high scavenging effect on DPPH free radicals, hydroxy free radicals and the like, has the high reducing capacity, and has the important value in the antioxidant activity development and application aspects.

The invention provides a method for separating and purifying kinds of flavonoid constituents from meconopsis integrifolia flowers at the same time and a method for separating and purifying two kinds of known flavonoid constituents at the same time. Through an HSCCC method, four kinds of flavonoid constituents are successfully separated and purified from the meconopsis integrifolia flowers; the separation speed is high, and the method lays a foundation for material basis research of the meconopsis integrifolia flowers. The research finds that the separated known compounds or new compounds have good free radical scavenging activity and can be used as antioxidant medicine or a health-care product.

The invention discloses a Hainan green plum stem extractive with a function of scavenging free radicals and a preparation method thereof. The preparation method comprises the following steps: adding an organic solvent to Hainan green plum stem drying powder, and extracting; filtering an extracting solution, concentrating the filtered extracting solution under reduced pressure so as to obtain total extract, adding water, suspending, extracting sequentially by using petroleum ether and ethyl acetate, recovering under reduced pressure so as to respectively obtain a petroleum ether part and an ethyl acetate part, carrying out gradient elution on the obtained ethyl acetate part by using a chloroform and methyl alcohol mixed solvent system, wherein the chloroform and methyl alcohol component with the volume ratio of chloroform to methyl alcohol being 100: 30 has excellent free radical scavenging activity and comprises 16 resveratrol oligomers compounds. The Hainan green plum stem extractive prepared by the method is high in yield, simple in technological process, low in cost and suitable for large-scale preparation; and the obtained extractive has excellent free radical scavenging activity and can be applied to healthcare food, medicines and food with functions of resisting oxidation and scavenging free radicals.

The invention relates to a silage additive for corn silage and application of the silage additive. Lactobacillus plantarum is matched with tara tannic acid, gallic acid, neutral detergent fibers and acid detergent fibers, so that the obtained silage additive has the advantages of reducing protein degradation and enhancing oxidation resistance; the problems that protein in corn silage is fast in degradation and large in loss, and the feed is poor in oxidation resistance are solved. The silage additive is good in effect when applied to corn silage, low in preparation cost, capable of being industrially produced and wide in application prospect.

The invention belongs to the technical field of medicaments, and relates to novel azulene compounds and application thereof, in particular to novel azulene compounds which treat diseases of the immune system, have anti-aging effect and take I and II as chemical formulas. The azulene compounds have steadier structures and stronger fat solubility, and can be prepared into various pharmaceutically acceptable preparations when proper pharmaceutical excipients are matched. Immunological experimental results show that the compound I and the compound II have stronger effect on improving immune function; and antioxidation experiments show that the compound I and the compound II have stronger removal of the activity of free radicals. The azulene compounds and preparations thereof are mainly used for various diseases caused by low immunity, and can also be used for aging resistance.

The invention relates to microorganism derived antioxidant, in particular to a hydroxyl-anthraquinone derivative with antioxidant activity and application thereof. A structural formula of the hydroxyl-anthraquinone derivative is shown as a formula I, and the hydroxyl-anthraquinone derivative is prepared from talaromyces fungus Talaromyces islandicus by fermentation. According to experiments, the hydroxyl-anthraquinone derivative which is a compound has high activity in scavenging of radicals DPPH (1,1-diphenyl-2-trinitrophenylhydrazine) and ABTS (2,2'-azine-bis-(3-ethylbenzothiazoline-6-sulfonic acid)) and can be applied to preparation of antioxidation related drugs, food additives, cosmetic additives or the like.

The invention discloses physical ability recovery drink for teenagers. The physical ability recovery drink is prepared from the following raw materials in parts by weight: 5 to 18 parts of white mushroom solid polysaccharide, 2 to 10 parts of polysaccharide, 1 to 8 parts of lotus root polyphenol, 3 to 4 parts of saccharose, 0.15 to 0.2 part of citric acid, 0.15 to 0.3 part of aspartame, 0.03 to 0.05 part of L-carnitine, 0.07 to 0.15 part of taurine, 0.01 to 0.03 part of ascorbic acid, 0.01 to 0.05 part of gamma-aminobutyric acid, 0.1 to 0.2 part of xanthan gum, 0.1 to 0.2 part of CMC, 0.5 to 1part of beta-cyclodextrine, 0.5 to 1.5 parts of compound vitamin, 0.1 to 0.5 part of mineral substances, 0.02 to 0.05 part of essence, 0.001 to 0.003 part of pigment and the balance of water, whereinthe total weight is 100 parts. The drink can provide enough energy, vitamin, electrolyte, protein and the like for the teenagers to eliminate muscle fatigue, prevent injury to the teenagers, improvethe recovery ability of organisms of the teenagers and help the teenagers to quickly recover the physical ability.

The invention discloses modified milk powder. The modified milk powder is characterized by comprising the following components: 60-80 parts of milk powder, 3-7 parts of lutein ester, 15-25 parts of colostrum powder, 2-4 parts of whey protein powder, 0.3-0.8 of part glucan, 0.1-0.3 part of beta-carotene, and 2-6 parts of composite fruit and vegetable powder, wherein the milk powder is cow milk powder, goat milk powder or mixed powder of cow milk powder and goat milk powder, the milk powder contains 25% of whole milk powder and 75% of skimmed milk powder, the colostrum powder is bovine colostrumpowder, sheep colostrum powder or mixed powder of bovine colostrum powder and sheep colostrum powder, the composite fruit and vegetable powder is prepared from 1-3 parts of blueberry juice powder and1-3 parts of lycium ruthenicum. By adopting the technical scheme of the invention, the additive and the milk powder are physically mixed, so that the nutritional ingredients and activity of compositions are ensured as much as possible, existing equipment is used for production, and the increase of the production cost is avoided.

The invention discloses a simple synthetic method of a procyanidine-acetone condensation compound and provides a novel procyanidine biopolymer and acetone condensation compound. The structure of the novel compound is analyzed through nuclear magnetic resonance and mass spectrum and optical spectrum technologies. The procyanidine biopolymer and acetone condensation compound has high activity of scavenging free radicals and the obviously enhanced activity of inhibiting alpha-glucosaccharase compared with that of procyanidine. The condensation compound can serve as antioxidants of foods, cosmetics and other products and also can serve as medicine or health-care product additives for inhibiting obesity and II type diabetes with the activity of inhibiting alpha-glucosaccharase.

The invention belongs to the technical field of biological fermentation, and particularly relates to an antioxidant composition and preparation and application of the antioxidant composition in food additives, and the antioxidant composition at least comprises a fermentation component which is obtained by co-fermenting corn-derived prolamin through bacillus subtilis and aspergillus niger and has the molecular weight smaller than 500 Da. Aspergillus niger and bacillus subtilis are adopted to conduct co-fermentation on zein, fermentation components with the molecular weights smaller than 500 Da, 500-1000 Da, 1000-1500 Da and 1500-3000 Da are obtained through ultrafiltration separation, and it is found through comparison of the antioxidant activity of the fermentation components that the zein with the molecular weights smaller than 500 Da has the strongest hydroxyl free radical scavenging activity and DPPH free radical scavenging activity, and the zein with the molecular weights smaller than 500 Da has the strongest hydroxyl free radical scavenging activity and the strongest DPPH free radical scavenging activity; meanwhile, it is surprisingly found that after fermentation components with the molecular weight smaller than 500 Da and the molecular weight ranging from 1000 Da to 1500 Da are compounded, new performance is shown, the antioxidant activity is more stable, and the strongest free radical scavenging activity is achieved in a water system and a grease system.

The invention discloses a red ginseng homogeneous polysaccharide which is mainly composed of Rha, GalA, Glc and Gal, the molar ratio of Rha to GalA to Glc to Gal is (1-10): (1-10): (1-12): (0.5-3), and the weight-average molecular weight is 25 kDa to 45 kDa. The red ginseng homogeneous polysaccharide takes-> 1)-alpha-D-Rhap-(2->,-> 1)-alpha-D-GalpA-(4->) as a main chain, and takes-> 1)-alpha-D-Glcp-(4->, T-beta-D-Glcp and T-alpha-D-Galp as side chains. The red ginseng homogeneous polysaccharide has good free radical scavenging activity and antioxidant activity, and can play a role in protecting myocardial ischemia injury by reducing myocardial enzyme, increasing various indexes such as SOD (superoxide dismutase) and the like as well as oxidative stress injury of myocardial tissues. The invention further discloses application of the red ginseng homogeneous polysaccharide in preparation of myocardial ischemia resisting drugs or application of the red ginseng homogeneous polysaccharide in preparation of antioxidant drugs.