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. 2016 Dec 22;25(2):333–339. doi: 10.1016/j.jfda.2016.09.008

Table 1.

IC50 values of DPPH scavenging by AME and the isolated flavonoids of Pulicaria undulata subsp. undulata.

IC50 values of DPPH scavenging
AME (μg/mL) Isolated compounds (μM) GA (μM)
1 2 4 6 7 8
27.5 3.9 252.3 7.5 11.4 78.1 12.2 6.9

1: 5,7,2′,3′,4′ penta hydroxyl isoflavone-4′-O-β-glucopyranoside, 2: kaempferol, 4: quercetin, 6: quercetin 3-O-β-galactoside, 7: quercetin 3,7-di OCH3, 8: caffeic acid.

AME = aqueous methanol extract; DPPH = 2,2-diphenyl-1-picrylhydrazyl; GA = gallic acid (positive control); IC50 = 50% inhibitory concentration.