Development of NMR and Raman spectroscopic methods for the determination of the degree of substitution of maleate in modified starches
Development of NMR and Raman spectroscopic methods for the determination of the degree of substitution of maleate in modified starches
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DOI：
10.1021/jf0102160
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发表时间：
2001-06-01
影响因子：
6.1
通讯作者：
Corke, H
中科院分区：
文献类型：
--
作者：
Chong, CK;Xing, J;Corke, H
在本文中，我们报告了应用核磁共振波谱和拉曼波谱来测定马来酸化淀粉中的马来酸取代度。研究了五种马来酸化淀粉，并构建了校准集以导出线性回归方程，该方程可用于预测化学改性量未知的淀粉样品的马来酸取代度。报告的校准集对于 NMR 和拉曼方法都具有非常高的线性度 (r > 0.99)。 NMR 和拉曼校准装置可以快速、无损地测量不同淀粉的马来酸取代度，几乎不需要样品制备。
In this paper we report the application of NMR spectroscopy and Raman spectroscopy to determine the degree of maleate substitution in maleinated starches. Five kinds of maleinated starches were investigated and calibration sets were constructed to derive linear regression equations that may be used to predict the degree of maleate substitution for starch samples with unknown amounts of chemical modification. The calibration sets reported have very high linearity (r > 0.99) for both the NMR and Raman methods. The NMR and Raman;calibration sets allow fast and nondestructive measurement of the degree of maleate substitution for different starches with little need of sample preparation.