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Poster communications

NMR imaging as a tool to measure the water uptake into extruded starch-based materials

Abstract : The migration of water is of a major interest in various fields and in particular in the food sector and the pharmaceutical industry. It is an important process during hydration/dehydration, release of molecules of interest, enzymatic activities etc. Not only the migration of water has a direct impact on the processes of formation/transformation of the foodstuffs, on their sensory properties but also on their conservation. In the products containing starch (food, drugs…), the migration of water plays an important role not only on sensory properties and the quality of the product but also on its preparation which implies various hydrothermal transformations of constituents [1-3]. Among the various methods of approach of the migration of water, the technique of NMR has the advantage of measuring in a noninvasive way of the dynamic phenomena at various scales [4]. Various original methods of NMR will be presented combining rotational and translational diffusion measurements in various starch systems in order to connect measurements of the migration of water to its compartmentation with a particular topology of the starch-based matrices. Localised measurements will make it possible to establish profiles of the migration of water in relation with the changes of the starch structure due to hydrothermal treatments.
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Poster communications
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Submitted on : Saturday, May 16, 2020 - 4:45:10 AM
Last modification on : Friday, November 19, 2021 - 11:12:02 AM


  • HAL Id : hal-02600394, version 1
  • IRSTEA : PUB00042178



Corinne C. Rondeau-Mouro, C. Malveau, S. Quellec, Chloé Chevigny, Denis Lourdin, et al.. NMR imaging as a tool to measure the water uptake into extruded starch-based materials. Biopolymers 2013, Dec 2013, Nantes, France. 2013. ⟨hal-02600394⟩



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