Table no catechin gallic acid ester (English: Epigallocatechin GALLATE,EGCG), also called the table has no food catechin-butyl acid ester. Is the Gallic (Gallocatechol) and gallic acid formed esters, belong to Catechin. EGCG is the most abundant tea catechins (in all plants also with the highest EGCG content of tea). It may also be an antioxidant, and antioxidants may be able to treat many diseases, including cancer. There are EGCG in green tea, but not in black tea. Because the EGCG in black tea is transformed into the tea Jade Red Essence (Thearubigin).