Table 3 ABTS radical scavenging activity of extracts from Ledum palustre L. (%)

Samples	Concentration (μg/mL)			RC50
	10	100	1,000
	Water extraction	12.4±1.61)b2)	40.6±4.1c		92.1±2.7d	251.5±0.8
Autoclave extraction	11.8±2.7a	39.2±3.6c	86.3±1.3d	273.9±2.5
Ultrasonic wave extraction	12.0±0.9a	45.7±1.9c	98.7±2.4e	158.5±2.4
70% Ethanol extraction	9.4±0.5a	50.5±2.5c	99.8±2.7	143.5±1.7
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).