Table 4.
Total phenols, proanthocyanins, and hydrolyzable tannins content, anion and radical inhibition capacity, and antioxidant capacity of the BAE (0.133 g/mL FW), expressed as mean value (±SEM).
| Chemical Analysis | Mean (±SEM) /L |
Mean (±SEM) /100 g |
|
|---|---|---|---|
| Compounds quantification | Total phenols (mg GAE, n = 7) | 937 (±15.79) | 702.39 (±11.85) |
| Proanthocyanins (mg PAE2, n = 7) | 448.43 (±14.46) | 336.33 (±10.85) | |
| Hydrolysable tannins (mg TAE, n = 6) | 316.84 (±6.28) | 237.63 (±4.71) | |
| Scavenging capacity |
IC50 O2•− anion (mg GAE, n = 7) | 77.14 (±3.43) | 57.86 (±2.57) |
| IC50 NO• radical (mg GAE, n = 5) | 39.33 (±6.89) | 29.48 (±5.17) | |
| Antioxidant activity | FRAP (mg TE, n = 7) | 1719.40 (±45.92) | 1289.58 (±34.44) |
| ABTS (mg TE, n = 5) | 1339.19 (±55.53) | 1004.42 (±41.65) | |
| DPPH radical (mg TE, n = 5) | 1692.92 (±172.31) | 1269.72 (±129.23) |
Abbreviations: FRAP (Ferric Reducing Antioxidant Power); ABTS (2,2′-azino-bis (3-ethylbenzo thiazoline-6-sulfonic acid); DPPH (2,2-diphenyl-1-picrylhydrazyl); GAE (Gallic acid equivalents); PAE2 (Procyanidin A2 equivalents); TAE (Tannic acid equivalents); TE (Trolox equivalents). IC50: Concentration to give 50% scavenging or inhibition.