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DPPH free radical scavenging activity of water extracts from P. densiflora
| Sample | DPPH free radical scavenging activity (IC50: μg/mL) |
|---|---|
| WPD | 21.35±0.71c |
| BHA | 8.52±0.69a |
| α-tocopherol | 9.56±0.56b |
BHA and α-tocopherol were used as positive control. Each value is expressed as the mean±SD (n=3). Different letters of upper index in the same column are significantly different by Duncan’s multiple range test (p<0.05).
