In 2008,
vinegars were subjected to two different final treatments.
In assessing the antioxidant activity (Table 2), we observed
that the ORAC and DPPH values were slightly higher in pasteurised
vinegars than in centrifuged vinegars.
The centrifugation procedure removes suspension particles being able to produce losses of antioxidant compounds.
Moreover, this result could also be
explained by the formation of Maillard reaction products such as
melanoidins that are produced by the heat of pasteurisation.
Several authors who have studied vinegar melanoidins have
concluded that contribute to the total antioxidant capacity of it (Xu,
Tao, & Ao, 2007).