Figure 3.
Antioxidant activity of DOPE in the β-carotene emulsion model system. (a): β-carotene absorbance inhibition ratio during 120 min incubation; (b): antioxidant activity expressed as IC50. nDOPE-native dry olive pomace extract; hpDOPE-extract prepared with hydroxypropyl-β-cyclodextrin; ramDOPE-extract prepared with randomly methylated β-cyclodextrin; BHA: butylhydroxyanisol; IC50: half maximal inhibitory concentration. Columns (in Figure 3b) marked with different letters belong to different statistical groups (p < 0.05)