Effect of a Whey Protein Network Formed by Cold Gelation on Starch Digestibility

Composite gels of whey protein isolate (WPI) and potato starch (PS) were formed by calcium chloride induced cold gelation to obtain microstructures where native starch granules were encased in the WPI network. Gels were then subjected to heat treatment and PS gelatinized inside the protein network. In vitro starch digestibility was investigated using the INFOGEST protocol to explore if the protein gel was able to protect gelatinized starch...