Table 4 ABTS radical scavenging activity of solvent fractions from Ledum palustre L. (%)

Samples Concentration (μg/mL) RC50
10 100 1,000
Hexane fraction 10.2±0.91)a2) 47.9±4.1c 97.5±5.1e 178.2±4.2
Ethyl acetate fraction 26.1±1.1b 64.9±3.2d 99.6±4.7e 25.0±2.2
Butanol fraction 16.8±2.0b 50.3±1.9c 98.3±2.5e 168.5±2.9
Water fraction 7.8±0.8a 64.7±1.2d 80.7±2.4d 367.0±1.5
Ascorbic acid 18.2±0.9b 49.7±2.2c 99.3±1.7e 156.5±1.5
All values are mean±SD (n=3).
a-eMeans with different superscript mall letters within sample groups are significantly different by Duncan’s multiple range test (p<0.05).