Fig. 4From: Superoxide-producing lipoprotein fraction from Stevia leaves: definition of specific activityKinetic curves for KMnO4 (a-1) and PPB (b-1) discoloration, reduction of nitrotetrazolium blue, with the formation of formazan (c-1) under the influence of 0.2 mg/ml suprol associated fraction of Nox in the absence of (1 -●-) and the presence of 5 × 10(− 8) M Cu, Zn-SOD (2 -■-), at a temperature of + 25 °CBack to article page