Table1.
TPC, TFC and antioxidant activities of n-Hexane, dichloromethane and methanol extracts and sep-pak methanolic fractions of S. frigida aerial parts
| Extracts or fractions | Total phenol content (as gallic acid equivalents) mg g-1 | Flavonoid content (mg g -1 ) | Antioxidant activity (RC50; mg mL -1 )(a) |
|---|---|---|---|
| MeOH | 25.67 ± 0.07 | 72.08 ± 1.63 | 0.134 ± 0.04 |
| DCM | 37.89 ±2.18 | 96.60 ± 17.29 | 0.374 ± 0.08 |
| n-hexane | 4.79 ± 0.05 | - | 2.098 ± 1.63 |
| 10% | 6.54 ± 0.10 | 9.05 ± 0.07 | 0.679 ± 0.10 |
| 20% | 53.86 ± 0.79 | 24.86 ± 0.77 | 0.141 ± 0.05 |
| 40% | 145.73 ± 1.81 | 101.28 ± 2.88 | 0.028 ± 0.00 |
| 60% | 136.76 ± 0.26 | 99.85 ± 3.81 | 0.035 ± 0.00 |
| 80% | 28.99 ± 0.47 | 73.68 ± 2.64 | 0.194 ± 0.02 |
| 100% | 3.89 ± 0.23 | 15.60 ± 0.62 | 0.287 ± 0.13 |
Experiment was performed in triplicate and expressed as Mean ± SD.
**
The RC50 value for quercetin as positive control was 0.003 ± 0.00 mg/mL.