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Applicability of a Voltammetric Assay Based on the Electroreduction of Oxygen to

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Figure 1. Cyclic voltammograms of pequi pulp extract and antioxidant standards L-ascorbic acid, BHA and trolox in 0.1 mol L -1  Britton-Robinson buffer,  pH 2.20, 7.15 and 10.05
Figure 2 shows the voltammograms of oxygen  electroreduction in 0.1 mol L -1  Britton-Robinson buffer,  pH 7.15, with the addition of the pequi pulp extract
Table 1 shows that the mean values of K ranged between
Figure 4 shows the distribution of the antioxidants in  relation to the principal components (a) and a projection  of the groups in relation to pH (b)
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