Enzymatic Synthesis of a New Derivative of Thiamin, O-α-Glucosylthiamin
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概要
- 論文の詳細を見る
A new transglucosylated derivative of thiamin could be synthesized by the actions of cyclomaltodextrin glucanotransferase from Bacillus stearothermophilus and glucoamylase from Rhizopus sp., in this order, on a mixture of dextrin and thiamin. The derivative was isolated in crystalline form and identified as 5'-O-(α-D-glucopyranosyl)thiamin by spectroscopy (FAB-MS, UV, ^2H-NMR, and ^13C-NMR), thiochrome formation with K_3[Fe(CN)_6]-NaOH reagent, and the hydrolysis products by α-and β-glucosidases. O-α-Glucosylthiamin was odorless and mildly sweet with no tongue-pricking taste, and was more stable than thiamin hydrochloride in aqueous solutions at pHs 7.0 and 9.3.
- 社団法人日本農芸化学会の論文
- 1998-02-23
著者
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SUZUKI Yukio
Research Institute for Bioresources, Okayama University
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Uchida Kei
Research Institute For Bioresources Okayama University
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