Table 1.
Total phenolics (TP), total flavonoids (TF) and antioxidant activity of dried extracts from the leaves of Encholirium spectabile.
| Sample | TP (mg GAE/g) | TF (mg CE/g) | DPPH (IC50, μg/ml) | β-Carotene (% AA) |
|---|---|---|---|---|
| Es-EtOH | 42.33 ± 6.88 | 53.53 ± 10.09 | 39.24 ± 2.83 | 42.25 ± 1.65 |
| Es-Hex | – | – | >243 | 63.54 ± 1.01 |
| Es-CHCl3 | 188.50 ± 27.50 | 129.70 ± 4.59 | 25.35 ± 4.35 | 71.83 ± 0.38 |
| Es-AcOEt | 93.92 ± 1.91 | 102.80 ± 1.32 | 57.64 ± 2.88 | 65.77 ± 5.18 |
| Ascorbic acid | – | – | 2.34 ± 0.02 | 1.89 ± 1.12 |
| BHA | – | – | 3.15 ± 0.24 | 75.03 ± 1.92 |
| BHT | – | – | 37.05 ± 3.19 | 79.04 ± 2.10 |
The IC50 values were obtained by interpolation from linear regression analysis with 95% of confidence level. IC50 is defined as the concentration sufficient to obtain 50% of a maximum effect estimate in 100%. Values are given as mean ± SD (n = 3).