MULTINUCLEAR NMR-STUDIES OF WATER IN SOLUTIONS OF SIMPLE CARBOHYDRATES .2. O-17 RELAXATION

被引：29

作者：

BELTON, PS

RING, SG

BOTHAM, RL

HILLS, BP

机构：

[1] AFRC Institute of Food Research, Norwich Laboratory, Norwich, NR4 7UA, Colney Lane

来源：

MOLECULAR PHYSICS | 1991年 / 72卷 / 05期

关键词：

D O I：

10.1080/00268979100100801

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Oxygen-17 water relaxation is reported for the series of alpha(1 --> 4) linked glucans, glucose to maltoheptaose over a wide range of sugar concentrations. The results can be interpreted quantitatively using a two-site exchange model where the 'bound' water reorients anisotropically. The effect of carbohydrate chain length on the fast and slow correlation times characterizing the bound water reorientation is discussed. Comparison is also made with the correlation times derived using deuterium relaxation.

引用

页码：1123 / 1134

页数：12

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