Fig. 2

Zinc-binding capacity of whey protein hydrolysate (WPH) fractions of molecular weight ranges < 1 kDa and > 1 kDa: (a) WPH-Esp, WPH produced with Esperase, (b) WPH-Ever, WPH produced with Everlase; and (c) WPH-Sav, WPH produced with Savinase. Data points with different letters are significantly different mean values (P < 0.05)