Table 4.
IC 50 values of Newbouldia laevis scavenging activity and reference compounds
| Activity | N. Laevis IC 50 | Reference | IC 50 |
|---|---|---|---|
| DPPH | 51.4# | Ascorbic acid | 55.4 ± 20.12** |
| Hydroxyl radical (OH.) | 497.21 ± 3.65# | Mannitol | 571.45 ± 20.12** |
| Nitric oxide radical (NO) | 92.42 ± 2.73# | Curcumin | 90.82 ± 4.75 (6)** |
| Superoxide anion (O2 .-) | 57.08 ± 1.22# | Quercetin | 42.06 ± 1.35** |
| Peroxynitrite (ONOO−) | 1210.83 ± 23.85# | Gallic acid | 876.24 ± 56.96 (6)** |
| Singlet oxygen (1O2) | 510.65 ± 9.54 | Lipoic acid | 46.15 ± 1.16 (6) * |
| Hypochlorous acid (HOCl) | 276.04 ± 12.01# | Ascorbic acid | 235.95 ± 5.75 (6)** |
| Iron Chelating | 1225.05 ± 298.1 | EDTA | 1.27 ± 0.05 (6)** |
Units of IC50 for all activities are μg/ml. Data are expressed as mean ± S.D.
EDTA = Ethylenediamine tetraacetic acid. #indicates no significant difference where *p < 0.01 and **p < 0.001.