Table 4.
Peak No. | Retention time (min) | PDA | Ratio (100 %) | M/Z (M–H) | MS2 | Tentative identification |
---|---|---|---|---|---|---|
1 | 16.815 | 275 | 22.29 | 457, 305, 169 | 331, 305, 169 | EGCG |
2 | 23.967 | 275 | 11.11 | 441, 289 | 289 | ECG |
QEF8: the eighth subfraction of ethyl acetate fraction through Sephadex LH-20 column; EGCG, (-)-epigallocatechin gallate; ECG, (-)-epicatechin gallate