Green Tea Constituents Concentration
(mg/8 f
l oz)*
Epigallocatechin-3-Gallate (EGCG) 25–106
Epigallocatechin (EGC) 49–113
Epicatechin-3-Gallate (ECG) 4–36
Epicatechin (EC) 6–19
*fl oz = fluid ounce, mg = milligram, L = liter [2].
Table 1: Major catechin classes identified in green tea.