2.12. Oxygen Radical Absorbance Capacity (ORAC)

The antioxidant activity was determined by ORAC in methanol extracts as previously reported [20]. The fluorescence was determined on a Synergy HT microplate reader (BioTek, Winooski, VT, USA) at emission and excitation wavelengths of 520 nm and 485 nm, respectively. Trolox was used as standard and the results were expressed as mg of Trolox equivalents (TE)/100 mL of SOFB.