3.2. OLE and OFE antioxidant activity
The antioxidant capacity of food was determined by a mixture
of different antioxidants with different action mechanisms, including
synergistic interactions; thus, more than one method
must be combined to determine the antioxidant capacity of
foodstuffs in vitro (Pérez-Jiménez et al., 2008). In the current
study, reducing power and DPPH·, ABTS·+, ·OH, and O2·− scavenging
capacity assays assessed the antioxidant performance
of OLE and OFE. Vc and BHT, which are typical antioxidant
agents used to protect food from spoilage, were used as positive
controls.