Abstract
Functional properties of casein isolated by UF and cryodestabilization as compared with commercial caseinates were assessed. Cryocasein was readily resuspended in water by the application of agitation and mild heat. Solubility profiles of cryocasein suggested a partial disintegration of micellar structure by the changes in pH and ionic strength. In spite of its resuspendibility, the emulsifying properties of cryocasein were not as good as those of commercial caseinates. Cryocasein retained the ability of native casein micelles in milk to form a curd upon rennet addition. It formed a firmer gel with a lower syneresis than sodium caseinate and calcium caseinate with added CaCl2.
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