Table 3.
Correlations between the IC50 values of antioxidant activities, phenolics and flavonoids content of S.asper
| Assays (IC50 μg/ml) | Correlations R2 | |
|---|---|---|
| Phenolics | Flavonoids | |
| DPPH | 0.9762b | 0.8843b |
| Iron chelating assay | 0.8101b | 0.7657a |
| Super oxide radical scavenging | 0.6987a | 0.6765b |
| Hydrogen peroxide scavenging assay | 0.1223 | 0.1056 |
| Hydroxyl radical scavenging activity | 0.2003 | 0.2060 |
| ABTS+ radical scavenging assay | 0.8821b | 0.7797a |
S.asper methanolic extract and its soluble fractions were used in the correlation. a, b indicate significance at P < 0.05 and P < 0.01 respectively