Enzymic Transglucosylation of Rubusoside and the Structure-Sweetness Relationship of Steviol-Bisglycosides
スポンサーリンク
概要
- 論文の詳細を見る
Rubusoside, the β-D-glucosyl ester of 13-O-β-D-glucosyl-steviol which was isolated from leaves of Rubus suavissimus collected in China as the major sweet principle (yield : 5.4%), was subjected to α-14 transglucosylation with the cyclodextrin glucosyltransferase produced by Bacillus megaterium Strain No. 5 using soluble starch as a donor. A significant improvement in the quality of sweetness was observed for the crude reaction mixture, which was separated into mono-, di-, tri-, tetra-, penta-, and hexa-glucosylated products. All isomers of the mono- and di-glucosylated products were further separated. Evaluation of the sweetness of these products compared with stevioside, rebaudioside A, etc. disclosed that the ratio of the number of glucose units at the 13-hydroxyl group to that at 19-carboxyl group seems to have a significant relationship with the sweetness as well as the quality of taste for glucosides of this type.
- 社団法人 日本農芸化学会の論文
著者
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OGAWA Susumu
Maruzen Kasei Co., Ltd.
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KITAHATA Sumio
Osaka Municipal Technical Research Institute
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Kasai Ryoji
Institute Of Pharmaceutical Sciences Faculty Of Medicine Hiroshima University
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Okada Shigetaka
Osaka Municipal Technical Research Institute
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Tanaka Osamu
Institute Of Pharmaceutical Sciences Hiroshima University School Of Medicine
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CHEN Feng-Huai
South China Institute of Botany, Academia Sinica
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MIZUTANI Kenji
Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine
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DARISE Muchsin
Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine
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MURAKAMI Fumikazu
Maruzen Kasei Co., Ltd.
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TANAKA Osamu
Institute for the Solid State Physics, University of Tokyo
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