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Table 5 DPPH scavenging activity of a methanolic extract of Gurigumu-7 and MF

From: Hepato-protective effects and chemical constituents of a bioactive fraction of the traditional compound medicine-Gurigumu-7

Substance percentage of DPPH scavenged at different concentration EC50 (μg/mL)
3.125 μg/mL 6.25 μg/mL 12.5 μg/mL 25 μg/mL 50 μg/mL
methanolic extract of Gurigumu-7 4.2 10.1 20.6 31.6 55.4 43.7
MF 8.0 9.4 17.9 38.8 59.3 39.8
protocatechuic acid (positive control) 30.4 44.4 58.7 72.2 81.7 7.8
  1. MF is the methanol eluted fraction from a DIAION column of Gurigumu-7 extract
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