Table 1.
Extract yield, total phenolic content (TPC), Trolox equivalent antioxidant capacity (TEAC) and ferric-reducing antioxidant power (FRAP) of olive leaf extracts of different genotypes.
| Genotype | Extract Yield (%) | TPC mg GAE/g) |
TEAC (mmol TE/g) |
FRAP (mmol Fe2+/g) |
|---|---|---|---|---|
| Ascolona | 29.58 | 236 ± 4.8 b | 0.83 ± 0.03 e | 1.79 ± 0.037 c |
| Ayvalik | 29.87 | 242 ± 3.2 b | 0.98 ± 0.08 b | 1.78 ± 0.027 c |
| Cekiste | 25.84 | 206 ± 0.4 d | 0.96 ± 0.06 c | 1.48 ± 0.048 e |
| Esek Zeytini | 29.79 | 268 ± 3.0 a | 1.01 ± 0.04 a | 2.12 ± 0.016 a |
| Gemlik | 27.39 | 199 ± 1.2 e | 0.93 ± 0.04 d | 1.42 ± 0.024 e |
| Kilis Yaglik | 28.52 | 225 ± 8.1 c | 1.01 ± 0.08 a | 1.99 ± 0.069 b |
| Memecik | 27.11 | 209 ± 3.4 d | 0.84 ± 0.10 d | 1.60 ± 0.074 d |
| Saurani | 24.63 | 197 ± 1.7 e | 0.75 ± 0.05 f | 1.23 ± 0.052 f |
| Uslu | 24.46 | 110 ± 4.3 f | 0.70 ± 0.14 g | 1.04 ± 0.019 g |
Data are expressed as the mean ± standard deviation (n = 3) for extract of each genotype. Values in the same column having different letters differ significantly (p < 0.05). GAE: Gallic acid equivalents. TE: Trolox equivalents.