TABLE I.
Compositions of Typical 1.5% Black Tea and 1.5% Green Tea Infusions
| 1.5% green tea infusion (ppm) |
1.5% black tea infusion (ppm) |
|
|---|---|---|
| Total catechins | 1,516.4 | 110.2 |
| Epicatechin | 148.7 | 8.02 |
| Epicatechin gallate | 198.5 | 35.9 |
| Epigallocatechin | 353.0 | 11.9 |
| Epigallocatechin gallate | 816.2 | 54.4 |
| Total theaflavins | 1.8 | 29.9 |
| Theaflavin | 0.6 | 3.9 |
| Theaflavin 3-gallate | 0.4 | 9.6 |
| Theaflavin 3′-gallate | 0.2 | 7.3 |
| Theaflavin 3,3′-digallate | 0.6 | 9.1 |
| Total flavonols | 67.7 | 42.6 |
| Kaempferol | 17.2 | 24.8 |
| Quercetin | 31.5 | 15.9 |
| Myricetin | 19.0 | 1.9 |
| Gallic acid | 53.6 | 89.7 |
| Caffeine | 507.4 | 583.7 |