Cold-Active β-Galactosidases: Insight into Cold Adaption Mechanisms and Biotechnological Exploitation.

Marco Mangiagalli, Marina Lotti

Marine drugs 2021 Jan 19

filter terms:

β-galactosidases (EC 3.2.1.23) catalyze the hydrolysis of β-galactosidic bonds in oligosaccharides and, under certain conditions, transfer a sugar moiety from a glycosyl donor to an acceptor. Cold-active β-galactosidases are identified in microorganisms endemic to permanently low-temperature environments. While mesophilic β-galactosidases are broadly studied and employed for biotechnological purposes, the cold-active enzymes are still scarcely explored, although they may prove very useful in biotechnological processes at low temperature. This review covers several issues related to cold-active β-galactosidases, including their classification, structure and molecular mechanisms of cold adaptation. Moreover, their applications are discussed, focusing on the production of lactose-free dairy products as well as on the valorization of cheese whey and the synthesis of glycosyl building blocks for the food, cosmetic and pharmaceutical industries.

Citation

Marco Mangiagalli, Marina Lotti. Cold-Active β-Galactosidases: Insight into Cold Adaption Mechanisms and Biotechnological Exploitation. Marine drugs. 2021 Jan 19;19(1)