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.