2-DIMENSIONAL NUCLEAR-MAGNETIC-RESONANCE STUDIES OF STARCH AND STARCH PRODUCTS

被引：23

作者：

MCINTYRE, DD

VOGEL, HJ

机构：

[1] Division of Biochemistry, Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4

来源：

STARCH-STARKE | 1990年 / 42卷 / 08期

关键词：

D O I：

10.1002/star.19900420802

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The use of two‐dimensional Nuclear Magnetic Resonance (NMR) spectroscopy as applied to studies of starch, starch products and glycogen is reported. The use of both homonuclear correlation (COSY, relay‐COSY and HOHAHA) and heteronuclear correlation (HMQC, HETCOR) experiments is discussed. This approach makes it possible to obtain complete assignments of the proton NMR spectra of these polysaccharides. This is not possible from 1‐D spectra due to excessive overlap of the non‐anomeric proton signals. The resulting assignments are useful in obtaining structural information regarding starch and related products. Moreover, the greater inherent resolution of the two‐dimensional spectra can reveal the presence of low molecular weight carbohydrates (glucose, maltose etc.) in dextrin samples, thus providing information about carbohydrate composition. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：287 / 293

页数：7

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