A process for purifying procyanidins from extract of Lindera obtusiloba Blume

摘要

One aspect of the present invention is Extracting ginger wood with a C ₁ -C ₃ alcohol aqueous solution to obtain a ginger extract; A liquid-liquid extraction step of adding ethyl acetate to the ginger extract to obtain an ethyl acetate layer; And A step of obtaining crystals formed by adding an organic solvent selected from the group consisting of chloroform, hexane, and methylene chloride to an ethyl acetate layer concentrate obtained by concentrating the ethyl acetate layer to obtain a crystalline product; and a method for purifying procyanidins from a ginger extract; The purified procyanidin; And a pharmaceutical composition comprising the purified procyanidin, a composition for health functional foods, and a cosmetic composition.