Table 2.
Evaluation of the antioxidant activities of Pistacia lentiscus essential oils using FRAP, ABTS, and DPPH tests.
| Antioxidant Assays | ||||
|---|---|---|---|---|
| Essential Oil Samples | FRAP (mg TE/g EO) | ABTS (mg TE/g EO) | DPPH (mgTE/g EO) | |
| Mountain | Winter | 11.3 ± 0.1 c | 0.28 ± 0.01 b | 0.12 ± 0.0 a |
| Spring | 9.6 ± 0.3 a | 0.32 ± 0.0 c | 0.44 ± 0.01 a | |
| Summer | 22.3 ± 0.2 c | 0.09 ± 0.01 e | 0.08 ± 0.01 b | |
| Autumn | 14.3 ± 0.1 a | 0.24 ± 0.01 a | 0.11 ± 0.0 a | |
| Littoral | Winter | 6.4 ± 0.9 c | 0.09 ± 0 c | 0.06 ± 0.0 c |
| Spring | 6.6 ± 1.1 b | 0.23 ± 0.01 e | 0.06 ± 0.0 d | |
| Summer | 15.7 ± 0.5 d | 0.30 ± 0.01 a | 0.08 ± 0.0 b | |
| Autumn | 14.8 ± 0.4 b | 0.13 ± 0.01 d | 0.06 ± 0.0 c | |
| Altitude * Season Interaction | *** | *** | *** | |
| Vitamin C (mg TE/g vit C) | 1080 ± 144 | 894 ± 88 | 1340 ± 192 | |
Means followed by different letters (in italic) within the same row were significantly different (p < 0.05). Significance effect of the interaction between the altitude and season as determined by ANOVA, p-values: *** p < 0.001.