Table 1.
TPC, TFC, and phenolic compositions of EAF
| Retention time (min) | mg/100 g EAF | |
|---|---|---|
| Gallic acid | 5.1 | 31.6±0.1 |
| Protocatechuic acid | 9.5 | 128.3±0.1 |
| Hydroxybenzoic acid | 16.2 | 139.1±0.1 |
| Catechin | 18.1 | 10,853.8±5.8 |
| Vanillic acid | 25.8 | 27.3±0.3 |
| Caffeic acid | 27.0 | 5.3±0.1 |
| Chlorogenic acid | 29.5 | 631.9±2.3 |
| Syringic acid | 35.0 | 512.3±2.5 |
| p-Coumaric acid | 37.9 | 71.2±2.1 |
| Ferulic acid | 41.1 | 21.0±0.6 |
| Sinapic acid | 42.5 | 1,961.3±5.6 |
| Rutin | 47.7 | 13,311.3±4.5 |
| Cinnamic acid | 54.5 | 30.2±0.5 |
| Quercetin | 56.5 | 415.0±2.1 |
| TPC (mg GAE/g EAF) | 346.26±15.22 | |
| TFC (mg QUE/g EAF) | 115.86±1.12 | |
| Yield (%) | 1.25 |