Table 2 DPPH radical scavenging activity of solvent fractions from Ledum palustre L. (%)

Samples	Concentration (μg/mL)			RC50
	10	100	1,000
	Hexane fraction	22.7±1.71)a2)	37.6±2.1b		83.2±1.3e	364.2±1.3
Ethyl acetate fraction	48.0±0.9c	62.7±1.1d	91.8±1.5e	43.5±0.9
Butanol fraction	36.2±1.0b	52.8±1.7c	80.6±1.6e	92.7±0.9
Water fraction	20.2±1.6a	28.3±2.3a	68.7±2.2d	542.7±1.4
Ascorbic acid	24.5±0.5a	47.5±0.9c	90.2±0.8e	135.3±1.1

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).