公开(公告)号：US09682030B2

公开(公告)日：2017-06-20

申请号：US14450349

申请日：2014-08-04

Applicant: AMOREPACIFIC CORPORATION

Inventor： Sun Sang Kwon ,  Myeong Hun Yeom ,  Duck Hee Kim ,  Han Kon Kim ,  Nok Hyun Park ,  Soo Mi Ahn

IPC: A61K8/73 ,  A61K8/97 ,  A61Q19/00 ,  A61Q19/02 ,  A61Q19/08

CPC classification number: A61K8/73 ,  A61K8/97 ,  A61K2800/74 ,  A61K2800/782 ,  A61Q19/007 ,  A61Q19/02 ,  A61Q19/08

Abstract: Disclosed is a method for preparing polysaccharides of green tea, and more particularly to a method for preparing polysaccharides of green tea comprising the steps of: a) removing chlorophyll and a low molecular weight polyphenol from green tea powder using a solvent; b) hot-water extracting a water-soluble active ingredient from the green tea residue of step a); and c) separating the polysaccharides of green tea from the hot-water extract of step b) by ultrafiltration and ethanol precipitation. Also, the present invention relates to a cosmetic composition for skin whitening, moisturization and anti-wrinkle effects comprising the polysaccharides of green tea as an effective ingredient.