... unique important bio-active component of tea,consisting of many sorts of ester-catechin.Several of the most active monomers are EGCG ... have a fine ability of supplying hydrogen,are new efficient natural antioxidants which can effectively remove the free anti-cancer, ... follows:(1)In medicine, applied to enhancing the human immubili and the treatments of leukemia, skin cancer, stomach cancer, esophageal ...