Table 1. DPPH radical scavenging activity and total polyphenol contents of the methanol extract and its solvent-fractionated fractions of P. miliaceum

Sample	DPPH radical scavenging activity (μg/mL, EC50)	Total polyphenol1) contents (mg/g)
80% methanol extract	67.43±4.282)a3)	16.26±1.02a
Chloroform fraction	5.27±1.08b	9.07±0.38b
n-Butanol fraction	13.82±2.42c	4.42±0.38c
Aqueous fraction	53.92±5.76d	0.43±0.04d

Each μg gallic acid equivalents (GAE)/g sample.
Each value expressed as the mean±SD (n=4).
Means in the same column with the different are significantly different (p<0.05) by Duncan’s multiple range test.