Crystal Transformation from Anhydrous α-Maltose to Hydrous β-Maltose and from Anhydrous Trehalose to Hydrous Trehalose
スポンサーリンク
概要
- 論文の詳細を見る
Anhydrous sugars such as maltose and trehalose are useful for making dry powder of foods and liquids. The crystal-transformation rate of maltose and trehalose were investigated under humid conditions and by kneading. The enthalpy for solubilization was 7.0 kJ/mol for the anhydrous maltose. The crystal-transformation rate of anhydrous α-maltose to hydrous β-maltose depended on the temperature at 75% humidity. However, that of anhydrous trehalose did not depend on the temperature, and transformation was very rapid. An anomeric change to maltose and no such change to trehalose might have caused this. The activation energy of crystal transformation was 79kJ/mol for maltose and zero for trehalose. The rate of crystal transformation of anhydrous maltose while kneading depended on the purity of the anhydrous α-maltose and the amount of water present. This crystal transformation rate fitted the Avrami equation.
- 社団法人日本農芸化学会の論文
- 2000-06-23
著者
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吉井 英文
鳥取大学大学院工学研究科 化学・生物応用工学専攻
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Kudo Jun
Department of Molecular Biology, Keio University School of Medicine
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Kudo Jun
Central Research Laboratories Sharp Corporation
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Kudo J
Semiconductor Technol. Academic Res. Center Yokohama Jpn
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Kudo Jun
Department Of Biotechnology Tottori University
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Linko P
Department Of Chemical Technology Helsinki University Of Technology
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Furuta Takeshi
Tottori University
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YOSHII Hidefumi
Department of Biotechnology, Tottori University
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FURUTA Takeshi
Department of Biotechnology, Tottori University
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LINKO Pekka
Department of Chemical Technology, Helsinki University of Technology
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Yoshii H
Tottori University
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Yoshii H
Tottori Univ. Tottori Jpn
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Yoshii H
Toyama National Coll. Technol. Toyama Jpn
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Yoshii Hidefumi
Department Of Biochemical Engineering Toyama National College Of Technology
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Furuta T
Tottori University
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Furuta Takeshi
Department Of Biotechnology Faculty Of Engineering Tottori University
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Linko Pekka
Department Of Chemical Technology Helsinki University Of Technology
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Yoshii Hidefumi
Department Of Applied Biological Science Kagawa University
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