Table 2.
Antioxidant activities of the three extracts for Terminalia chebula and positive control.
| Extract and positive control | HRP-luminol-H2O2 assaya | Pyrogallol-luminol assaya | CuSO4-Phen-Vc-H2O2 assaya | Luminol-H2O2 assaya |
|---|---|---|---|---|
| Extract | ||||
| Methanol extract | 6.9 ± 1.9 | 184.8 ± 12.3 | 6.3 ± 0.2 | 1.7 ± 0.3 |
| Water extract | 42.4 ± 4.1 | 235.5 ± 22.6 | 4.5 ± 1.2 | 1.3 ± 0.2 |
| 95% ethanol extract | 17.7 ± 5.8 | 146.0 ± 5.9 | 6.7 ± 1.7 | 1.8 ± 0.2 |
| Positive control | ||||
| Vitamin C | 14.8 ± 6.2 | >1000 | 688.3 ± 29.7 | 32.8 ± 8.9 |
| Trolox | 3.2 ± 0.1 | 209.6 ± 17.0 | 5.8 ± 1.0 | 0.8 ± 0.1 |
The data are presented as mean ± SD for three replicates.
aIC50 values in μg/mL.