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Table 3 DPPH radical scavenging activity of G. tinctoria extract

From: Improvement of endothelial function by Gunnera tinctoria extract with antioxidant properties

Sample

EC50 (mg/L)

TEC50 (min)

G. tinctoria extract

178 ± 12

28 ± 3

Gallic acid

50.06 ± 0.01

24 ± 2

  1. Data are shown as mean ± standard deviation (n = 3)
  2. EC50: The antioxidant concentration that decreased by 50% the DPPH radical, estimated at steady state
  3. TEC50: Time taking to reach steady state at EC50