Table 1 Antioxidant characteristics of purple grape juice
Total monomeric anthocyanins (mg/L) | ND |
|---|---|
Trans-Resveratrol (mg/L) | 0.5 |
Cis-Resveratrol (mg/L) | 0.3 |
Caffeic acid (mg/L) | 4.0 |
Caftaric acid (mg/L) | 67.1 |
Chlorogenic acid (mg/L) | 8.4 |
Proanthocyanidin B1 (mg/L) | 2.6 |
Proanthocyanidin B2 (mg/L) | 2,4 |
Epigallocatechin gallate (mg/L) | 1.8 |
Catechin (mg/L) | 1.3 |
Isoquercetin (mg/L) | 2.3 |