Table 2.
The antioxidant activity (IC50) and percentage of inhibition for R. chalepensis essential oils from three regions according to the Trolox a reference compound.
| Methanolic extract | Log IC50 (μg/ml) (Mean ± SD) | Inhibition (%) according to the Trolox |
|---|---|---|
| R. chalepensis essential oil from Jenin | 19.9 ± 0.68∗∗ | 24.12 |
| R. chalepensis essential oil from Hebron | 7.8 ± 1.05∗ | 61.53 |
| R. chalepensis essential oil from Jerusalem | 6.9 ± 0.94∗∗∗ | 69.56 |
| Trolox | 4.8 ± 0.51∗ | 100 |
∗ p value < 0.05, ∗∗p value ≤ 0.001, and ∗∗∗p value ≤ 0.0001.