Table 1.
Area under curve of CVs of Syrah and Chardonnay pomace extracts, total polyphenol content measured by Folin–Ciocalteu, and AAox measured by DPPH and CUPRAC.
| ITALY | FRANCE | TUNISIA | ITALY | FRANCE | TUNISIA | |||
|---|---|---|---|---|---|---|---|---|
| Eapp | AUC (μC) | TPC (mg GAE/g dr) | ||||||
| Syrah | + 0.8 V | 5.93 b | 7.35 a | 5.05 c | Syrah | 232.2 b | 299.4 a | 217.3 b |
| Chardonnay | + 0.8 V | 5.43 b | 6.55 a | 6.47 a | Chardonnay | 321.8 a | 102.9 c | 155.9 b |
| Syrah | + 0.5 V | 2.30 b | 3.02 a | 1.80 c | DPPH (mmol TEAC/g dr) | |||
| Syrah | 1.44 b | 1.77 a | 1.39 b | |||||
| Chardonnay | 1.81 a | 0.62 c | 1.05 b | |||||
| Chardonnay | + 0.5 V | 1.89 b | 2.33 a | 2.27 a | CUPRAC (mmol Fe2+/g dr) | |||
| Syrah | 5.12 b | 8.93 a | 5.24 b | |||||
| Chardonnay | 9.78 a | 2.82 c | 3.52 b | |||||
Means in rows followed by unlike letters differ significantly by Fisher’s LSD procedure, p ≤ 0.05.