Table 1.
Analysis of major bioactive compounds in Taiwan teas. GA: gallic acid, EGC: epigallocatechins, C: catechin, EGCG: epigallocatechin gallate, EC: epicatechin, GCG: gallocatechin gallate, and ECG: epicatechin gallate.
| Sample | Bioactive Compound Content (mg/g) | ||||||
|---|---|---|---|---|---|---|---|
| GA | EGC | C | EGCG | EC | GCG | ECG | |
| Pu-erh Tea | 21.98 ± 1.03 | 0.02 ± 0.01 | 0.50 ± 0.09 | 0 | 1.45 ± 0.33 | 0.49 ± 0.12 | 0.22 ± 0.02 |
| Black Tea | 6.09 ± 0.06 | 0.07 ± 0.01 | 0.55 ± 0.03 | 0 | 0.95 ± 0.35 | 1.00 ± 0.05 | 0.45 ± 0.10 |
| Oolong Tea | 1.92 ± 0.56 | 2.33 ± 0.50 | 1.09 ± 0.47 | 13.34 ± 3.87 | 4.54 ± 0.14 | 1.04 ± 0.34 | 2.42 ± 0.71 |
| Green Tea | 1.67 ± 0.06 | 3.46 ± 0.06 | 2.30 ± 0.08 | 14.03 ± 0.89 | 8.86 ± 0.09 | 1.21 ± 0.04 | 1.89 ± 0.07 |