Table 3. ABTS radical scavenging activities of P. chinense Purch seed extracts using different extraction solvent

Extraction solvent Scavenging activity (%) IC50 (μg/mL) BHT1) IC50 (μg/mL)
100 (μg/mL) 50 (μg/mL) 25 (μg/mL) 12.5 (μg/mL)
Water 65.18±0.65c2) 40.18±1.58b 20.91±1.03c 9.73±0.30c 72.13±1.53a
75% ethanol 72.32±0.57b 53.31±0.68a 28.66±0.42b 14.07±0.60b 58.31±0.33b 13.70±0.51
75% methanol 76.15±0.98a 56.57±2.63a 32.17±0.36a 16.61±0.11a 53.54±1.64c
2,6-Di-tert-butyl-4-methylphenol (BHT) was used as a positive control.
Mean±SE (n=3) within each column followed by different letters are significantly different (p<0.05).