where: f1 ¼ reading fluorescence at

where: f1 ¼ reading fluorescence at 1 min, f2 ¼ reading fluorescence
at 2 min and fn ¼ fluorescence reading at 80 min. The calibration
curve was constructed with standard Trolox (25e700 mg/mL) and a
blank without antioxidants, and the results were expressed as mmol
TE per 100 g FDF.