Table 5.
2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging activity of Zanthoxylum schinifolium extracts.
| Sample | DPPH Radical Scavenging Activity | ABTS Radical Scavenging Activity |
|---|---|---|
| IC50 (µg·mL−1) 1 | IC50 (µg·mL−1) | |
| l-Ascorbic acid | 4.1 ± 1.7 a | 22.9 ± 4.3 a |
| ZSF | 281.1 ± 16.8 c | 101.7 ± 11.5 c |
| ZSP | 75.6 ± 6.1 b | 57.4 ± 6.4 b |
Data are expressed as the mean ± SD of triplicate experiments. ZSF: Z. schinifolium fruit extract, ZSP: Z. schinifolium pericarp extract. 1 IC50 value is the concentration of sample required to inhibit 50% of DPPH and ABTS radicals. a–c Within the column, means with different letters are significantly different (Duncan’s multiple range test, p < 0.05).