1043 results about "Quercetin" patented technology

The invention discloses a preparing method of sweet chrysanthemum glycosides and chromocor extract from sweet leaf chrysanthemum, which is characterized by the following: comprising sweet chrysanthemum glycosides, labroid glycosides A, cyanidenon, meletin, cyanidenon-7-0-beta-D glycosides, celery element-7-0-beta-D-glycosides, quercetin, meletin-3-0-beta-D-arabinoside, meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside], derivant and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; producing extract; counting 5-100%(w / w) of each sweet chrysanthemum glycosides element and chromocor element content in sweet chrysanthemum glycosides and chromocor extract; setting the chromocor element sum in sweet chrysanthemum glycosides, labroid glycosides A, cyanidenon-7-0-beta-D glycosides, quercetin, meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside] at 5-100%(w / w).

A synergistic flame retardant composition comprising a phenolic compound comprising condensed tannin, hydrolysable tannin, lignin, cardanol, quercetin, catechin, epicatechin, anthocyanidin, catechol, dopamine, hydroxytyrosol, adrenaline, 4-hydroxyphenylacetic acid, gallic acid, digallic acid, methyl gallate, ellagic acid, phloroglucinol, hexahydroxydiphenic acid, luteic acid, casuarictin, or a combination thereof; and a phosphorus-containing compound comprising a C5-7 carbocyclic polyol substituted with at least one phosphate group.

The invention relates to the application of flavonoid quercetin dimmer as the medicament for treating viral hepatitis B, in particular to the application of flavonoid quercetin dimmer or pharmaceutically acceptable salt thereof to the preparation of the medicament for eliminating HBsAg and HBeAg and inhibiting HBV DNA replication. The flavonoid quercetin dimmer or pharmaceutically acceptable salt thereof has obvious HBsAg and HBeAg inhibiting activity, and at the concentration of 100mcg / ml, the flavonoid quercetin dimmer pharmaceutically acceptable salt thereof has the HBsAg eliminating strength of 65.7% and the HBeAg eliminating strength of 44.8% which are respectively 4.1 times and 2.7 times higher than the positive control medicament of Alpha-interferon and has the HBV DNA inhibiting ratio of 44.8% which is 117% of the HBV DNA inhibiting ratio of the Alpha-interferon at the highest test concentration. Therefore, the flavonoid quercetin dimmer or pharmaceutically acceptable salt thereof can be expectedly used for preparing the non-nucleoside medicament for eliminating HBsAg and HBeAg, inhibiting HBV DNA replication and treating viral hepatitis B.

The invention discloses a quercetin nano-micelle preparation which is made from the following components in parts by weight: 20-40 parts of quercetin as a bulk drug and 220-330 parts of a pluronic surfactant as a drug carrier. A preparation method comprises the following steps: mixing the quercetin with the pluronic surfactant and dissolving in an organic solvent until being fully dissolved, and carrying out rotary evaporation at 15-60 DEG C for removing the organic solvent to obtain a drug-containing film; and drying the film in vacuum, adding a water phase for hydrating at 15-60 DEG C to obtain micelle solution, and filtering with a millipore filter to obtain the quercetin nano-micelle preparation. The obtained nano-micelle preparation has small nano-grade particle size of 20-60nm, a hydrophobic core and a hydrophilic shell, thus ensuring that the preparation has small possibility of being swallowed by a reticuloendothelial system in body, achieving effects such as targeting, long circulating and the like, and being beneficial to clinical application.

The present invention relates to a composition for treating acne comprising an antimicrobial / anti-inflammatory polyphenolic molecule(s) including quercetin and rosmarinic acid in combination with salicyclic acid and / or salicylate salts in a topical and / or cosmetic delivery vehicle. The invention further relates to a method for treating acne by topically administering one of the compositions in an amount therapeutically effective to reduce the redness and blemishes associated with acne.

The present invention relates to American goldenrod herb total flavone extract and its preparation process and use. The American goldenrod herb total flavone extract contains quercetin, quercetin-3-O-beta-D-heteroside, kaempferol-3-O-alpha-L-rhamnoside, chlorogenic acid, etc. capable of preventing and treating senile dementia, various inflammatory respiratory diseases, esophagus cancer, etc. The preparation process is simple, high extracting rate, and the extract has high pharmacological effect, stable property, low toxicity and controllable quality.

The present invention relates generally to methods and related compositions using flavonoids and / or indanes extracted from the stems and leaves of C. quadrangularis to reduce weight and inhibit lipase, α-amylase and α-glucosidase activity in mammals. By example and not by way of limitation, embodiments of the present disclosure, a composition and related methods for reducing body weight and / or inhibiting any combination of lipase, α-amylase and α-glucosidase is provided. The composition contains an effective amount of one or more flavonoids or indanes selected from 3-O-rhamnopyranosylkaempferol, 3-(4-hydroxybenzylidene)-2-(2,5-dihydroxyphenyl)-1-(4-hydroxyphenyl)indane-4,6-diol, quercitrin, rhamnitrin, rhamnocitrin, quercitrin-3-O″-acetate and parthenocissin A.

A process for preparing a rutin-enriched composition from plant biomass comprises extraction with an aqueous solution, and precipitation. An enzyme preparation, such as naringinase, is used for the transformation of rutin to higher value compositions containing increased proportions of isoquercitrin and quercetin.

Compositions with synergistic anti-inflammatory effect in inflammatory diseases resulting from activation and consequent degranulation of mast cell and followed by secretion of inflammatory biomolecules from the activated mast cells, composed of a heavily sulfated, non-bovine proteoglycan such as chondroitin sulfate C and one or more of a hexosamine sulfate such as D-glucosamine sulfate, a flavone such as quercetin, a special organic extra virgin kernel seed olive oil, S-adenosylmethionine and diphenhydramine.

The invention relates to a soft capsule oral care agent and a preparation method thereof. The soft capsule oral care agent comprises one or several of the following natural product extracts with anti-inflammation and bactericidal activity: thymol, menthol crystal, tea polyphenol, clove oil, wintergreen oil, eucalyptus oil, blumea oil, cinnamon oil, tea tree essential oil, lavender oil, lemon oil, litsea cubeba oil, citronella oil, patchouli oil, perilla oil, zanthoxylum oil, geranium essential oil, juniper berry essential oil, evening primrose essential oil, grape seed oil, origanum oil, rose essential oil, aloe powder, rutin, hydroxyrutin, dihydroquercetin, curcumin, bisdethoxy curcumin, aloesin, barbaloin, ferulic acid, citric acid, tea purine, bitter betaine and the like, wherein the natural product extracts account for 5-75 weight percent of the soft capsule oral care agent. Moreover, the invention discloses a preparation method for the soft capsule oral care agent. The soft capsule oral care agent has the characteristics of broad antibacterial spectrum, efficient and quick effect, high safety and no toxin. The advantages of oral care products, such as chewing gum, mouth wash and the like, are integrated, and the defects of a traditional oral care agent are discarded by the soft capsule oral care agent. The soft capsule oral care agent is good in effect, convenient in carrying and simple in application.