Antioxidant Activities. Different methods were used to
evaluate the antioxidant activity of the purple tomato V118, as
no single chemical assay can accurately quantify the contribution
of the lipophilic and hydrophilic components to the total antioxidant
action of the plant food.43 The antioxidant activities of the
lipophilic extract (containing mainly carotenoids) were determined
by the PCL and ORAC-L assays, and were found to be
30.11 μmol TE/g DW and 11.97 μmol TE/g DW, respectively.
The hydrophilic extract (containing mainly phenolics) was subjected
to the ORAC-H and FRAP assays, which gave 323.23 μmol
TE/g DW and 54.95 μmol AAE/g DW, respectively (Table 4).