Figure 5.

In vitro antioxidative activities, (a) oxygen radical absorbance capacity (ORAC), (b) Trolox equivalent antioxidant capacity (TEAC) and (c) ferric reducing antioxidant power (FRAP) of whey protein concentrate (WPC80) and spray-dried (SD) and freeze-dried (FD) whey protein hydrolysates prepared using Alcalase^® (Alc) and Prolyve^® (Plv) obtained under pH-stat at pH 7.0 (ST7) and free-fall pH 9.0 (FF9) hydrolysis conditions. Results represent mean ± SD (n = 3), where different letters indicate significant difference at p < 0.05.