Table 2.
Theaflavin and thearubigin content of tea leaf extract treated with tyrosinase.
| Treatment | Tyrosinase activity (U) | TF (%) | TR (%) | TF/TR |
|---|---|---|---|---|
| Control | 0a | 0a | 0 | |
| Tyrosinase | 111 | 3.07 ± 0.10c | 2.69 ± 0.18b | 1.15 |
| 446 | 3.54 ± 0.02d | 2.53 ± 0.91b | 1.55 | |
| 1785 | 5.97 ± 0.09e | 3.56 ± 0.32c | 1.69 | |
| Commercial black tea (BOP) | 1.3 ± 0.01b | 21.45 ± 0.31d | 0.06 | |
Values are expressed as mean ± standard deviation of three replication. Different letters a,b,c in the same column indicate significant differences (P < 0.05) between samples.