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International Journal of Phytomedicine and Phytotherapy

Table 3 DPPH radical scavenging activities of methanol extract of Zingiber officinale

From: In-vitro antioxidants, antimicrobial and toxicological evaluation of Nigerian Zingiber officinale

Conc. (μg/mL) M-ZO Ascorbic Acid
2.5 2.34 ± 0.93 1.98 ± 0.04
5 16.85 ± 1.24 18.56 ± 1.64
10 34.65 ± 2.34 42.73 ± 3.45
20 49.39 ± 2.35 55.89 ± 3.21
40 57.54 ± 3.56 69.34 ± 4.34
80 68.46 ± 5.56 77.94 ± 2.34
100 76.39 ± 3.45 85.34 ± 4.32
IC50 47.05 ± 2.03 36.44 ± 1.78
  1. Values are mean ± SEM of 3 determinations