Determination of antioxidant activity using 2,20-diphenyl-1-
picrylhydrazyl (DPPH) radical-scavenging method
The antioxidant activity of different concentrations (0.15e
20 mg/mL) of EOs samples was measured in terms of hydrogen donating or radical-scavenging ability, using the stable radical
DPPH (Brand-Williams, Cuvelier, & Berset, 1995). The results were
expressed in percentage of inhibition as mean of three replicates