where Abscontrol is the absorbance of the control sample, and
Abssample is the absorbance of the sample.
All the results for the DPPH (ABTS+) scavenging capacity of
wine samples were expressed as trolox equivalent antioxidant
capacity (TEAC). The standard solutions of trolox ranged from 0
to 400 mg/L. The trolox standard curve was built by plotting inhibition
percentage versus trolox concentration at 515 nm (734 nm)
for DPPH (ABTS) assays. Every sample was analyzed in triplicate.