Abstract

The fractions of caseins (αs-, β- and κ-) are widely used in food applications due to their physiochemical properties as well as their bio- and techno-functional properties. Especially, β-casein fraction is a precursor having a variety of bioactive peptides such as antihypertensive and opioid. Different methods have been established in isolating and purifying the casein fractions, particularly on β-casein isolation. However, the obtained yield for each fraction still requires further improvement. The aim of this study was to increase the yield and purity of the fractions by constructing a set of experiments on technical scale and determining the main process parameters. Based on our previous studies on laboratory scale, a method for the technical scale isolation of casein fractions from micellar casein powder was developed. A comparable yield and purity values for β-casein were obtained.

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