Sample | gallic acid | caffeine | EGC | EC | EGCG | GCG | ECG |
Pu-erh tea | 0.671 | 2.823 | 0.11 | 0.08 | - | - | - |
Raw material | - | 2.654 | 2.03 | 2.10 | 7.15 | 1.190 | 14.66 |