Transglycosylation from sucrose to kojic acid by sucrose phosphorylase from Leuconostoc mesenteroides was studied. Two transfer products were obtained. These structures were identified as kojic acid 5-O-α-d-glucopyranoside and kojic acid 7-O-α-d-glucopyranoside on the bases of secondary ion mass spectrum analyses, the component analyses of their enzymatic hydrolyzates, and the carbon-13 nuclear magnetic resonance spectrum analyses.
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Kitao et al. (1994) studied this question.