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Pronunciation: lak'tal-byu'min

Definition: The albumin fraction of milk. It contains two proteins: a- and ß-lactalbumin; the former, minor lactalbumin, interacts with galactosyl transferase to form lactose synthase, which synthesizes lactose from d-glucose and UDP-galactose in milk production; ß-lactalbumin is the chief whey protein in bovine milk; a-lactalbumin is the most heat-stable of the whey proteins.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.