Table 1.
Antioxidant capacity, percent DPPH inhibition and IC50 of leaf extracts of seven plant species. Data are mean ± SE. In each column values with different letters are significant at P<0.05.
| Plant material | Trolox equivalents mol g-1 DW)µ) | % Inhibition of DPPH | IC50 ( mg ml-1 ) |
|---|---|---|---|
| Rosmarinus sp. | 116.00±0.001a | 93.40±0.17%a | 1.07±0.01a |
| Zataria multiflora | 108.00±0.008b | 86.65±0.85%b | 1.22±0.04a |
| Pelargonium graveolens | 36.00±0.007c | 27.88±2.18%c | 3.56±0.08b |
| Chamaemelum nobil | 7.60±0.006d | 20.65±0.31%c | 4.74±0.04c |
| Frenqueri aundulate | 4.20±0.001e | 17.56±0.11%d | 6.86±0.11d |
| Achillea wilhemsii | 3.00±0.009f | 11.49±0.46%e | 7.61±0.16e |
| Carthamus tinctorius L. | 1.80±0.005g | 3.03±0.45%f | 25.20±0.24f |