NMR Studies of Cyclodextrin Inclusion Complex with Ethyl Hexanoate in Ethanol Solution
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概要
- 論文の詳細を見る
The formation of βCD inclusion complex for aliphatic ethyl ester, with ethyl hexanoate as a guest molecule was investigated. Proton T_1 measurements by the IR method and 1D difference nuclear Overhauser enhancement experiments showed that ethyl hexanoate exists with the groups (H-2 and H-3) around the ester bond nearer to the narrower βCD cavity and the other protons are proximal to the H(CD)-3 and H(CD)-5 protons within the cavity with a folded structure. The complexation of βCD was greatly affected by the addition of ethanol. With increasing ethanol concentration, a marked increase in volatility of ethyl hexanoate from the βCD solution was observed ; the volatility in 30% ethanol was about 3 times larger than in 0% one. On the basis of the observed NOE and T_1 values, the lowering of the ability of βCD complexation in ethanol solution is assumed to be caused by the situation shift of guest molecule toward the narrower side or outside of the cavity.
- 社団法人日本農芸化学会の論文
- 1994-06-23
著者
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MATSUMOTO Kiyoshi
Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu Universi
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Matsumoto K
Division Of Bioscience And Bioenvironmental Sciences Faculty Of Agriculture Graduate School Of Kyush
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OSAJIMA Yutaka
Department of Food Science and Technology, Faculty of Agriculture, Kyushu University
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Iwasaki Hiroko
Department Of Food Science And Technology Faculty Of Agriculture Kyushu University
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Osajima Y
Kyushu Univ. Fukuoka Jpn
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Osajima Yutaka
Department Of Bioresources And Biosciences Hiroshima Prefectural University
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Osajima Yutaka
Kyushu Women's Univ.
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MATSUMOTO Kenji
Gifu International Institute of Biotechnology
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Matsui T
Kyushu Univ. Fukuoka Jpn
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Matsui Toshiro
Department Of Electrical And Electronic Engineering Tokyo Institute Of Technology
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Matsui Toshiro
Department Of Applied Chemistry Faculty Of Engineering Doshisha University
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Matsumoto K
Fac. Of Agriculture Graduate School Kyushu Univ.
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Osajima Y
Kyushu Women's College
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Toshiro Matsui
Faculty Of Agriculture Graduate School Kyushu University
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Matsumoto K
Gifu International Institute Of Biotechnology
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Iwasaki Hiroko
Department Of Cell Differentiation The Sakaguchi Laboratory Of Developmental Biology Keio University
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Matsumoto Kiyoshi
Department Of Applied Chemistry Faculty Of Engineering Kanagawa University
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Matsumoto K
Central Research Laboratory Hitachi Ltd.
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