摘要:
Disclosed herein is a method for preparing ortho-dihydroxyisoflavones using a biotransformation system. More specifically, disclosed is a method for preparing ortho-dihydroxyisoflavones, which comprises biotransforming daidzein or genistein by actinomycete microorganisms, particularly Streptomyces avermitilis, Nocardia farcinica or Streptomyces lincolnesis, in order to efficiently prepare ortho-dihydroxyisoflavones having an excellent antioxidant function and a whitening effect.
摘要:
Disclosed is a method for the preparation of kaempferol-3-O-rutinoside and a composition of a skin external application comprising kaempferol-3-O-rutinoside as an active ingredient. The method for isolating kaempferol-3-O-rutinoside through hydrolysis uses an enzyme or microbe that removes the sugar selectively from kaempferol-3-O-rutinoside glycosides in a plant extract. Disclosed also is a composition of a skin external application comprising kaempferol-3-O-rutinoside that prevents skin wrinkle.
摘要:
The present invention relates to a cosmetic composition containing hydrolysates of icariin, and more particularly, a cosmetic composition containing hydrolysates of icariin including icaritin, icariside I and icariside II. The hydrolysates of icariin is prepared by a method comprising the steps of: (a) obtaining an extract from a plant containing icariin using water or an organic solvent; and (b) hydrolyzing the plant extract with an acid, a base, an enzyme or a microorganism producing the enzyme. The cosmetic composition according to the present invention is employed for anti-oxidant, anti-aging, whitening or anti-wrinkling effects.
摘要:
The present invention relates to a cosmetic composition containing hydrolysates of icariin, and more particularly, a cosmetic composition containing hydrolysates of icariin including icaritin, icariside I and icariside II. The hydrolysates of icariin is prepared by a method comprising the steps of: (a) obtaining an extract from a plant containing icariin using water or an organic solvent; and (b) hydrolyzing the plant extract with an acid, a base, an enzyme or a microorganism producing the enzyme. The cosmetic composition according to the present invention is employed for anti-oxidant, anti-aging, whitening or anti-wrinkling effects.
摘要:
Disclosed is a composition containing an active ingredient comprising one or more extracts selected from the group consisting of Rehmannia glutinosa, licorice, Coix lacryma-jobi seed, wheat germ, Chaenomeles sinensis fruit, Acanthopanacis cortex and Radix puerariae. The composition promotes adipocyte differentiation and fat globule production, and is effective in reducing skin wrinkles, increasing skin elasticity and preventing skin ageing.
摘要:
Disclosed is a composition comprising an extract of at least one selected from a group consisting of Rehmannia glutinosa, licorice, Coicis Semen, Hordei Fructus, Chaenomelis Fructus, Acanthopanacis Cortex and Puerariae Radix as an active ingredient. The composition promotes adipocyte differentiation and lipid droplet formation and is effective in improving skin wrinkles, enhancing skin elasticity and preventing skin aging.
摘要:
Disclosed are a method for preparing icariside II represented by Formula 1, which inhibits the glycosylation of glycoprotein enzyme tyrosinase by inhibiting the enzymatic activity of alpha-glucosidase, which is an enzyme in the glycosylation of tyrosinase, as well as a skin whitening composition.
摘要:
The present invention relates to a sesamol derivative or its salt, and a skin external composition containing the same. More particularly, the invention relates to a sesamol derivative or its salt, which consists of sesamol and 3-aminopropane phosphoric acid, linked with each other by a phosphoric acid diester bond, and can be degraded into sesamol and 3-aminopropane phosphoric acid by enzymes present on the skin so as to simultaneously show the physiological activities of sesamol and 3-aminopropane phosphoric acid, as well as a preparation method thereof and a skin external composition containing the same.
摘要:
Disclosed is a hydroxybenzamide derivative represented by the following Formula. A method for preparing the same and a cosmetic composition comprising the same are also disclosed. More particularly, the hydroxybenzamide derivative is obtained by reacting a hydroxybenzoic acid having a protecting group introduced thereto with a hydroxyphenyl amine to form a benzamide derivative and by hydrolyzing the benzamide derivative in an aqueous base solution to form a hydroxybenzamide derivative. The cosmetic composition comprising the hydroxybenzamide derivative as an active ingredient has excellent anti-oxidative, anti-aging and skin wrinkle-alleviating effects. wherein R1 represents a C1˜C10 alkyl group, and n is an integer ranging from 1 to 3.
摘要:
Disclosed is a whitening composition for external skin application. Containing one or more of Oldenlandia diffusa Willd extract, Rheum undulatum extract and Broussonetia kazinoki extract as an effective ingredient, the whitening composition for external skin application exhibits superior melanogenesis inhibition and skin whitening effect. Accordingly, it may be used in various skin whitening cosmetics.