Table 5.
Salix spp. Bark Extract/Reference | DPPH• Scavenging Effect | ABTS•+ Scavenging Effect | ||
---|---|---|---|---|
IC50 (µg mL−1) | IC50 (mg AAE g−1 of Dry Bark) | AAI | IC50 (µg mL−1) | |
Salix atrocinerea Brot. | 10.98 ± 0.77 a,b | 54.41 ± 8.22 b | 5.64 | 5.58 ± 0.72 a,b |
Salix fragilis L. | 23.62 ± 4.82 c | 16.79 ± 3.54 a | 2.62 | 10.24 ± 1.54 c |
Salix viminalis L. | 14.06 ± 1.73 b | 28.63 ± 4.34 a | 4.40 | 7.82 ± 0.45 b,c |
Ascorbic acid | 3.92 ± 0.08 a | ˗ | - | 3.37 ± 0.06 a |
The results represent the mean ± standard deviation (n = 9). Means with different superscript minor case letters (a–c) within the same column are statistically different (one-way ANOVA, followed by Tukey’s HSD test, p < 0.05). AAE, ascorbic acid equivalents; AAI, antioxidant activity index; IC50, inhibitory concentration at 50%.