Stabilization of β-Casein by κ-Casein Against Precipitation by Calcium Chloride

Abstract

β-Casein (0.15%) at 30 C is 80% precipitated by 10 mm calcium chloride. κ-Casein at a κ/β ratio of 0.15 will completely prevent the precipitation. This stabilization by κ-casein is dependent on the concentration of β-casein; when the concentration is 0.6%, the κ-casein is considerably less effective. The stabilization is also pH dependent with the maximal effectiveness of κ-casein at pH 7.0. © 1963, American Dairy Science Association. All rights reserved.