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Radiolabelling study of the heat induced interactions between alpha lactalbumin beta lactoglobulin and kappa casein in milk and in buffer solutions

Noh, B.; Richardson, T.; Creamer, L.K.

Journal of Food Science 54(4): 889-893

1989

ISSN/ISBN: 0022-1147
DOI: 10.1111/j.1365-2621.1989.tb07906.x
Accession: 007718009
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Radiolabelled .alpha.-lactalbumin, .beta.-lactoglobulin and .kappa.-casein were added to milk prior to heating it at 95.degree.C for up to 20 min. The distribution of these proteins between the micellar and serum phases and between various sized aggregates were determined chromatographically. The results from these and other supplementary experiments were consistent with a model of whey proteins denaturing in milk during heat treatment and using .kappa.-casein as a nucleation site for the formation of heat-induced complexes involving disulfide bonding. These heat-induced complexes, like .kappa.-casein itself, remained associated with the external surface of the casein micelle and continued to enlarge with additional heat treatment.

Radiolabelling study of the heat induced interactions between alpha lactalbumin beta lactoglobulin and kappa casein in milk and in buffer solutions

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Related References

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