2.5.4. Hydrophilic antioxidant activity (HAA)
Extraction of hydrophilic fraction of non-digested or digested
beverages was carried out based on the procedure reported by
Rodríguez-Roque et al. (2013b). The antioxidant activity was
evaluated through the colorimetric method (DPPH•) reported
j o u r n a l o f f u n c t i o n a l f o o d s 1 4 ( 2 0 1 5 ) 3 3 – 4 3 35
by Brand-Williams, Cuvelier, and Berset (1995). Results were
expressed as percentage of DPPH• inhibition.