Identification of Biologically Effect and Chemical Structure of Polyphenol Compounds from the Leaves of Korea Persimmon (Diospyrus kaki L. Folium)

The lyophilization of the solution extracted from 60 percent of acetone applied to persimmon leaves, the compounding process in accordance with the solution's concentration, and the gel filteration through Sephadex G-50 of biologically activated substances obstructing enzyme activity, such as tyrosinase, xanthine oxidase, and angiotesin converting enzyme (ACE) led to the assumption that polyphenol was the compound serving as biologically...