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Antioxidant activity of compounds (1–3) isolated from A. ataxacantha
| Samples | IC50 (μg/ml) |
|---|---|
| Compounds | |
| 1 | 16.77 ± 0.18 |
| 2 | 25.15 ± 0.01 |
| 3 | 3.57 ± 0.02 |
| Reference | |
| Qercetin | 1.04 ± 0.01 |
The value of IC50 are expressed as means (n = 3) ± standard deviation (SD)
1: lupeol, 2: betulinic acid, 3: betulinic acid-3-trans-caffeate
