TABLE 4.
Antioxidant properties of Verbascum diversifolium aerial parts extracts.
| Extracts | DPPH (mg TE/g) | ABTS (mg TE/g) | CUPRAC (mg TE/g) | FRAP (mg TE/g) | PBD (mmol TE/g) | MCA (mg EDTAE/g) |
|---|---|---|---|---|---|---|
| n-Hexane | 0.54 ± 0.04e | 8.10 ± 0.93d | 38.82 ± 1.93f | 13.85 ± 0.56f | 0.97 ± 0.07e | 35.12 ± 2.55c |
| Dichloromethane | 1.67 ± 0.15d | 22.56 ± 1.95c | 89.85 ± 0.17d | 30.22 ± 0.97e | 2.08 ± 0.07c | 42.92 ± 1.34b |
| Ethyl acetate | 38.49 ± 0.67b | 53,.3 ± 1.89b | 128.66 ± 3.45b | 60.83 ± 0.78b | 2.58 ± 0.12a | 23.93 ± 0.55d |
| Ethanol | 46.86 ± 0.08a | 73.56 ± 0.49a | 174.84 ± 6.70a | 79.24 ± 0.62a | 2.37 ± 0.01b | 13.79 ± 2.35e |
| 70% Ethanol | 46.33 ± 0.18a | 73.42 ± 0.12a | 116.08 ± 0.28c | 57.47 ± 1.55c | 1.55 ± 0.05d | 35.67 ± 2.19c |
| Water | 37.25 ± 1.68c | 73.03 ± 0.01a | 77.52 ± 1.68e | 51.40 ± 0.13d | 1.47 ± 0.07d | 54.63 ± 0.44a |
*Values are reported as mean ± SD, of three parallel measurements. PBD, phosphomolybdenum; MCA, metal chelating activity; TE, trolox equivalent; EDTAE, EDTA, equivalent; na, not active.