Fig. 1. HPLC chromatograms of the mixed standards (A), the aqueous extract of Fuzhuan brick tea, named FTE (B). HPLC peaks: (1) gallic acid, (2) gallocatechin, (3) epigallocatechin, (4) catechin, (5) caffeic acid, (6) epigallocatechin gallate, (7) epicatechin, (8) gallocatechin gallate, (9) epicatechin gallate, (10) theaflavins.
