Antioxidant activity of grains, dry beans, fresh vegetables and
fruits were analyzed using the DPPH method(See table 2). As
a comparative basis, results for some standard, more commonly
recognized, antioxidant compounds are presented in Table 1.
DPPH results for standard phenolic compounds follow similar
trends as observed by other methods. Antioxidant content of
vegetables and fruits was previously reported using ORAC and
other methods (8,9). Similar trends in antioxidant activity
were observed for grains, vegetables and fruits comparing
those results with those obtained using DPPH.