Interest of coupling ATR-MIR spectroscopy with independent components analysis to follow starch hydrothermal transformations - Archive ouverte HAL
Article Dans Une Revue Food Hydrocolloids Année : 2016

Interest of coupling ATR-MIR spectroscopy with independent components analysis to follow starch hydrothermal transformations

Marine Dewaest
  • Fonction : Auteur
Cindy C. Villemejane
  • Fonction : Auteur
  • PersonId : 1203220
Douglas Rutledge
Aliette Verel
  • Fonction : Auteur
Camille Michon

Résumé

In order to test the interest of coupling independent components analysis/ATR-MIR spectroscopy, a series of starch samples (native/pregelatinized, regular/waxy, potato/wheat/maize, modified or not) were selected and made into pastes in excess water. The evolution of the spectra during heating and cooling were monitored. Spectra could be decomposed into 8 source signals, the independent components (ICs) whose contributions vary with the type of starch sample and temperature. Of these independent components, five showed peaks at wavelengths often associated with starch in the literature (993, 1003, 1014, 1024 and 1047 cm−1). Four of them could be linked to the expected evolutions of the amorphous (993 and 1003 cm−1) and ordered (1014 and 1024 cm−1) starch molecules. By comparing the evolution of the proportions of the different source signals extracted from the starch samples with results described in the literature, it was possible to interpret the evolution of the organization of starch granule during thermal treatment.
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Dates et versions

hal-01565087 , version 1 (19-07-2017)

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Marine Dewaest, Cindy C. Villemejane, Delphine Jouan-Rimbaud Bouveresse, Luc Eveleigh, Douglas Rutledge, et al.. Interest of coupling ATR-MIR spectroscopy with independent components analysis to follow starch hydrothermal transformations. Food Hydrocolloids, 2016, 58, pp.298-307. ⟨10.1016/j.foodhyd.2016.02.038⟩. ⟨hal-01565087⟩
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