... a unique important bio-active component of tea,consisting of many sorts of ester-catechin.Several of the most active monomers are EGCG ( ... as follows:(1)In medicine, applied to enhancing the human immubili and the treatments of leukemia, skin cancer, stomach cancer, esophageal ... as growth hormone and unique pesticides. Due to the high cost of EGCG, EGCG is currently mainly used in medicine, ...