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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Banc, Amélie
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Topics
Publications (19/19 displayed)
- 2021Impact of the protein composition on the structure and viscoelasticity of polymer-like gluten gelscitations
- 2020Tailoring the viscoelasticity of polymer gels of gluten proteins through solvent qualitycitations
- 2019Phase separation dynamics of gluten protein mixturescitations
- 2018Nanoscale reversibility and non-linear effects in polymer nanocomposites under strain cycles
- 2017Chain structure of polymer nanocomposites using small-angle neutron scattering
- 2017Structure of chains and filler in polymer nanocomposites: impact of small beads and small molecules
- 2016Contrast matching gone wrong? Nanocomposites seen by SANS
- 2016Spontaneous gelation of wheat gluten proteins in a food grade solventcitations
- 2016Contrast-matching gone wrong? A study of polymer conformation in nanocomposites
- 2015Structure analysis by small-angle scattering of polymer nanocomposites: from model to industrial systems
- 2015Contrast-matching gone wrong? A study of polymer conformation in nanocomposites
- 2015Recent progress in polymer and filler structure in polymer nanocomposites
- 2015Origin of Small-Angle Scattering from Contrast-Matched Nanoparticles: A Study of Chain and Filler Structure in Polymer Nanocompositescitations
- 2015Chain signal in nanolatex based nanocomposites
- 2014Structure and rheology of model nanocomposites
- 2014Tuning Structure and Rheology of Silica–Latex Nanocomposites with the Molecular Weight of Matrix Chains: A Coupled SAXS–TEM–Simulation Approachcitations
- 2013Nanolatex based nanocomposites: control of the filler structure and reinforcement
- 2013Structuration and mechanical properties of gels made from gluten proteins
- 2011Reinforcement and Polymer Mobility in Silica–Latex Nanocomposites with Controlled Aggregationcitations
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article
Impact of the protein composition on the structure and viscoelasticity of polymer-like gluten gels
Abstract
We investigate the structure of gluten polymer-like gels in a binary mixture of water/ethanol, $50/50$ v/v, a good solvent for gluten proteins. Gluten comprises two main families of proteins, monomeric gliadins and polymer glutenins. In the semi-dilute regime, scattering experiments highlight two classes of behavior, akin to standard polymer solution and polymer gel, depending on the protein composition. We demonstrate that these two classes are encoded in the structural features of the proteins in very dilute solution, and are correlated with the presence of proteins assemblies of typical size tens of nanometers. The assemblies only exist when the protein mixture is sufficiently enriched in glutenins. They are found directly associated to the presence in the gel of domains enriched in non-exchangeable H-bonds and of size comparable to that of the protein assemblies. The domains are probed in neutron scattering experiments thanks to their unique contrast. We show that the sample visco-elasticity is also directly correlated to the quantity of domains enriched in H-bonds, showing the key role of H-bonds in ruling the visco-elasticity of polymer gluten gels.