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. 2019 Nov 30;8(12):609. doi: 10.3390/antiox8120609

Table 5.

Antioxidant activity of methanol/water/acetic acid extracts (49.5:49.5:1) of Salix atrocinerea Brot., Salix fragilis L., and Salix viminalis L. bark, through DPPH• and ABTS•+ scavenging effects.

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%.