Table 1.
Total phenol content (TPC), total flavonoid content (TFC) and antioxidant activity of the DCM, n-Hexane and MeOH extract and respective fractions of S. umbrosa
| Extracts and Fractions | Total Phenol Content (TPC) (mg/100 mg) | Total Flavonoid Content (TFC) (mg/100 mg) | Free radical scavenging Activity (RC 50 ) (mg/L) |
|---|---|---|---|
| n-Hexane | 4.35 ± 0.000 | 3.62 ± 0.257 | 1.44 ± 0.224 |
| DCM | 8.06 ± 2.871 | 2.21 ± 0.008 | 0.35 ± 0.008 |
| MeOH | 14.57 ± 2.574 | 5.02 ± 0.577 | 0.06 ± 0.001 |
| 10% MeOH-water | 6.10 ± 0.792 | 0.74 ± 0.016 | 1.90 ± 0.035 |
| 20% MeOH-water | 22.20 ± 1.980 | 10.33 ± 0.062 | 0.02 ± 0.0004 |
| 40% MeOH-water | 29.27 ± 3.663 | 8.39 ± 1.052 | 0.02 ± 0.019 |
| 60% MeOH-water | 7.50 ± 3.069 | 1.46 ± 0.016 | 0.25 ± 0.012 |
| 80% MeOH-water | 5.61 ± 0.099 | 4.21 ± 0.210 | 0.27 ± 0.012 |
| 100% MeOH-water | 4.84 ± 0.396 | 2.40 ± 0.047 | 0.36 ± 0.228 |
| Quercetine | ----- | ----- | 0.005 ± 0.0009 |
| Rutin | ----- | ----- | 0.00975 ± 7.07E-05 |