Table 1.
Antioxidant performance and total phenolic contents of the extracts/fractions from A.biennis.
| Sample | Extraction/ fractionation yield (g) |
EC
50
(µg/ mL)
|
TPC
(mg GAE /g) |
||
|---|---|---|---|---|---|
| DPPH assay | FIC assay | BCB assay | |||
| PE | 42.20 | 1314.86 ±37.01 | 258.17 ± 27.71 | 283.37 ± 4.31 | 0.19 ± 0.33 |
| DCM | 57.80 | 452 ± 0.02 | 343.27 ± 10.13 | 313.18 ±6.25 | 8.65 ± 2.10 |
| EA | 3.70 | 74.20 ± 1.17 | 578.71 ± 37.17 | 212.20 ± 6.71 | 66.95 ± 0.56 |
| EtOH | 11.40 | 67.39 ± 2.72 | 269.85 ± 10.69 | 189.63 ± 7.10 | 107.02 ± 4.23 |
| EtOH/Wt | 79.50 | 44.05 ± 0.42 | 132.47 ± 5.33 | 132.63 ± 4.43 | 122.21 ± 1.85 |
| Fr. A | 19.35 | 214.41 ± 2.74 | 22.79 ± 1.34 | 58.44 ± 0.72 | 12.33 ± 0.48 |
| Fr. B | 6.89 | 51.50 ± 0.19 | 30.95 ± 1.55 | 71.86 ± 2.97 | 69.15 ± 2.25 |
| Fr.C | 2.15 | 22.01 ± 0.18 | 54.55 ± 4.97 | 53.27 ± 16.79 | 289.13 ± 4.20 |
| Fr. D | 4.16 | 14.98 ± 0.14 | 66.07 ± 3.09 | 17.55 ± 3.01 | 338.61 ± 6.67 |
| Fr. E | 3.46 | 23.64 ± 0.69 | 115.66 ± 2.09 | 18.56 ±5.30 | 318.16 ± 3.59 |
| Fr. F | 1.88 | 27.69 ± 0.45 | 242.42 ± 7.83 | 158.07± 1.96 | 62.67 ± 1.92 |
| Fr. G | 1.35 | 194.74 ± 9.16 | 180.47± 2.69 | 245.02 ± 13.46 | 17.48 ± 10.83 |
| BHT | --- | 4.88±0.57 | --- | 0.458±0.07 | --- |
| Vit C | --- | 3.66±0.28 | --- | --- | --- |
| EDTA | --- | --- | 18.00 ± 3.02 | --- | --- |
| Quercetin | --- | --- | 87.24 ± 3.94 | --- | --- |