IDENTIFICATION AND QUANTITATION OF HYDROXYPROPYLATION OF STARCH BY FTIR

被引：21

作者：

FORREST, B

机构：

[1] Goodman Fielder Wattie Limited, Research & Development Dept, Lane Cove, New South Wales, 2066, 170 Epping Road

来源：

STARCH-STARKE | 1992年 / 44卷 / 05期

关键词：

D O I：

10.1002/star.19920440505

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

FTIR spectrocopy was used to detect hydroxypropylation in modified starches. Use of derivative difference spectroscopy enabled development of a method for estimating the degree of substitution. Infra-red spectra of a hydroxypropylated starch, and its unmodified precursor are acquired. The second derivative of the difference spectrum between the two is calculated, and the area of the peak centred at 2974cm-1 is estimated. This yields hydroxypropyl value after comparison with a calibration curve.

引用

页码：179 / 183

页数：5

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