Table 4 Reducing power assay of plant extracts
S.No. | Conc (μg/ml) | P. roxburghii absorbance (700 nm) | P. wallichiana absorbance (700 nm) | P. gerardiana absorbance (700 nm) | Ascorbic acid absorbance (700 nm) |
|---|---|---|---|---|---|
1. | 10 | 0.304 ± 0.23 | 0.237 ± 0.64 | 0.325 ± 0.12 | 0.377 ± 0.19 |
2. | 20 | 0.454 ± 0.34 | 0.423 ± 0.98 | 0.463 ± 0.54 | 0.491 ± 0.78 |
3. | 40 | 0.569 ± 0.67 | 0.489 ± 1.17 | 0.511 ± 0.67 | 0.545 ± 0.45 |
4. | 80 | 0.642 ± 0.78 | 0.507 ± 0.78 | 0.626 ± 0.23 | 0.679 ± 0.34 |
5. | 120 | 0.762 ± 0.32 | 0.593 ± 0.54 | 0.652 ± 0.56 | 0.753 ± 0.41 |
7. | 180 | 0.824 ± 1.12 | 0.693 ± 0.32 | 0.792 ± 0.32 | 0.782 ± 0.63 |
8. | 200 | 0.842 ± 0.78 | 0.753 ± 0.11 | 0.812 ± 0.21 | 0.854 ± 0.43 |