Hydrolysis of disaccharides containing glucose residue in subcritical water

被引：85

作者：

Oomori, T ^{[1
]}

Khajavi, SH ^{[1
]}

Kimura, Y ^{[1
]}

Adachi, S ^{[1
]}

Matsuno, R ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Agr, Div Food Sci & Biotechnol, Sakyo Ku, Kyoto 6068502, Japan

来源：

BIOCHEMICAL ENGINEERING JOURNAL | 2004年 / 18卷 / 02期

关键词：

degradation; disaccharides; subcritical water; Weibull equation;

D O I：

10.1016/j.bej.2003.08.002

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The hydrolysis of disaccharides consisting of two glucose residues or of glucose and fructose or galactose residues in subcritical water was measured using a tubular reactor at 10 MPa and 180-260 degreesC. The relationship between the fraction of remaining disaccharide and the residence time could be expressed by the Weibull equation for all the disaccharides tested at any temperature. The susceptibility to hydrolysis largely depended on the type of disaccharide, and it was found that the electrostatic potential charge of a glucosidic oxygen atom was an indication for the susceptibility of disaccharide to the hydrolysis. It was also shown that the enthalpy-entropy compensation held for the hydrolysis of disaccharides in subcritical water. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：143 / 147

页数：5

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