METHOD FOR PREPARING POLYSACCHARIDE OF GREEN TEA

摘要

PURPOSE: A method for preparing green tea polysaccharide is provided to shorten manufacturing time and improve economic efficiency. CONSTITUTION: A method for preparing green tea polysaccharide comprises: a step of removing chlorophyll and polyphenol of low molecule using solvent; a step of extracting water-soluble active ingredient at 30-40°C from the green tea; and a step of isolating green tea polysaccharide through ultrafiltration and ethanol precipitation. The solvent is hexane, ethanol or methanol. The cosmetic composition is used for skin whitening, moisturization or anti-wrinkle.