PubMed:30032433 JSONTXT

Recent progress on biological production of α-arbutin. Arbutin, a glucoside of hydroquinone, is used as a powerful skin lightening agent in the cosmeceutical industry because of its strong inhibitory effect on the human tyrosinase activity. It is a natural compound occurring in a number of plants, with a β-anomeric form of the glycoside bond between glucose and hydroquinone. α-Arbutin, which glycoside bond is generated with α-anomeric form, is the isomer of natural arbutin. α-Arbutin is generally produced by transglucosylation of hydroquinone by microbial glycosyltransferases. It is interesting that α-arbutin is found to be over 10 times more effective than arbutin, and thus biological production of α-arbutin attracts increasing attention. Seven different microbial enzymes have been identified to be able to produce α-arbutin, including α-amylase, sucrose phosphorlase, cyclodextrin glycosyltransferase, α-glucosidase, dextransucrase, amylosucrase, and sucrose isomerase. In this work, enzymatic and microbial production of α-arbutin is reviewed in detail.

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