Infrared spectroscopy as a tool to characterise starch ordered structure--a joint FTIR-ATR, NMR, XRD and DSC study

Carbohydrate Polymers
Frederick J WarrenBernadine M Flanagan

Abstract

Starch has a heterogeneous, semi-crystalline granular structure and the degree of ordered structure can affect its behaviour in foods and bioplastics. A range of methodologies are employed to study starch structure; differential scanning calorimetry, (13)C nuclear magnetic resonance, X-ray diffraction and Fourier transform infrared spectroscopy (FTIR). Despite the appeal of FTIR as a rapid, non-destructive methodology, there is currently no systematically defined quantitative relationship between FTIR spectral features and other starch structural measures. Here, we subject 61 starch samples to structural analysis, and systematically correlate FTIR spectra with other measures of starch structure. A hydration dependent peak position shift in the FTIR spectra of starch is observed, resulting from increased molecular order, but with complex, non-linear behaviour. We demonstrate that FTIR is a tool that can quantitatively probe short range interactions in starch structure. However, the assumptions of linear relationships between starch ordered structure and peak ratios are overly simplistic.

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Citations

May 10, 2017·Materials Science & Engineering. C, Materials for Biological Applications·Wenqiang TanZhanyong Guo
Feb 13, 2018·Journal of the Science of Food and Agriculture·Jose Alvarez-RamirezLuis Arturo Bello-Perez
Jun 6, 2018·Critical Reviews in Food Science and Nutrition·Jinhu TianXingqian Ye
Nov 7, 2019·Journal of the Science of Food and Agriculture·Eduardo Jaime Vernon-CarterSamuel Garcia-Diaz
Apr 10, 2020·Journal of Functional Biomaterials·Maria-Beatrice ColtelliGiovanna Donnarumma
May 18, 2018·MSphere·Frederick J WarrenMichael J Gidley
Aug 28, 2019·Polymers·Magdalena ZdanowiczTadeusz Spychaj
Mar 16, 2019·International Journal of Molecular Sciences·Olga DíazÁngel Cobos
Oct 17, 2019·Polymers·Dominique Larrea-WachtendorffGiovanna Ferrari
Jul 15, 2020·Biomolecules·Henrike BrustJoerg Fettke
May 19, 2020·Food Science and Biotechnology·Seon-Min OhMoo-Yeol Baik
Aug 29, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ahui XuCunxu Wei
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