| abstract |
The invention discloses an enzymatic synthesis method of S-alpha-D-glucoside-L-cysteine, which uses an aqueous solution containing sucrose and L-cysteine as a substrate, adds sucrose phosphorylase, and passes The transglucosylation reaction of sucrose phosphorylase to produce S-α-D-glucoside-L-cysteine. Compared with the chemical synthesis method, the method of the invention does not need group protection and removal, and the steps are simple; the reaction raw materials are simple and easy to obtain, and are friendly to the environment; the sucrose phosphorylase is obtained by simple fermentation of Leuconostoc enterococci, and the cost is low. |