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Comparison of the rheology of mozzarella-type curd made from buffalo and cows’ milk

Hussain, I., Bell, A. E. and Grandison, A. S. (2011) Comparison of the rheology of mozzarella-type curd made from buffalo and cows’ milk. Food Chemistry, 128 (2). pp. 500-504. ISSN 0308-8146

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To link to this article DOI: 10.1016/j.foodchem.2011.03.069

Abstract/Summary

Curd rheology and calcium distribution in buffalo and cows’ milk, were compared at their natural pH and during acidification (pH 6.5–5.6). Buffalo milk displays a curd structure and rheology different from that of cows’ milk and the casein-bound calcium, as well as the contents of fat, protein and calcium, are also higher. Due to these higher amounts of casein-bound calcium, the overall curd strength with buffalo milk (as indicated by the dynamic moduli) was higher, at similar pH values, than those of equivalent gels produced from cows’ milk. The curd rheology was adversely affected at lower pH (5.8–5.6) in both of the milk types, due to the loss of casein-bound calcium from casein micelles. The degree of solubilisation of calcium in buffalo milk during acidification is quite different from that observed in cows’ milk with a lower proportion of the calcium being solubilised in the former. The maximum curd firmness was obtained at pH 6.0 in both milk types. For both species, these rheological and micellar changes were qualitatively the same but quantitatively different, due to the different milk compositions.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food and Bioprocessing Research Group
ID Code:24413
Uncontrolled Keywords:Mozzarella; Curd; Acidification; Buffalo; Milk; Calcium; Dynamic moduli
Publisher:Elsevier

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