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Record number 318513
Title Correlations between biochemical characteristics and foam-forming and -stabilizing ability of whey and casein hydrolysates
Author(s) Ven, C. van der; Bont, D.B.A.; Voragen, A.G.J.
Source Journal of Agricultural and Food Chemistry 50 (2002). - ISSN 0021-8561 - p. 2938 - 2946.
Department(s) Food Chemistry Group
Publication type Refereed Article in a scientific journal
Publication year 2002
Abstract Whey protein and casein were hydrolyzed with 11 commercially available enzymes. Foam properties of 44 samples were measured and were related to biochemical properties of the hydrolysates using statistical data analysis. All casein hydrolysates formed high initial foam levels, whereas whey hydrolysates differed in their foam-forming abilities. Regression analysis using the molecular weight distribution of whey hydrolysates as predictors showed that the hydrolysate fraction containing peptides of 3-5 kDa was most strongly related to foam formation. Foam stability of whey hydrolysates and of most casein hydrolysates was inferior to that of the intact proteins. The foam stability of casein hydrolysate foams was correlated to the molecular weight distribution of the hydrolysates; a high proportion of peptides >7 kDa, composed of both intact casein and high molecular weight peptides, was positively related to foam stability.
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