The free radical scavenging activity of the extracts was investigated using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radi-
cal scavenging method. The solution of DPPH was prepared at concentration of 152 μM in methanol, while stock solution of the sample (5 mg/mL) was diluted with methanol to make a dilution series of 500 to 1.96 μg/mL.