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Reversible self-aggregation of oxidized tannins in model solutions

Abstract : MAIN CONCLUSION Oxidized polyphenols aggregate and form reversible hazes. Aggregation / dissolution processes in model solution are monitored by DLS in two sets of experiments: 1) temperature ramp and 2) variation of ethanol fraction. The reversible haze appears to be composed of two fractions with well distinguished haze intensities. LC-MS analysis after phloroglucinolysis reveals that aggregates are mostly composed of oxidized procyanidins with intra-molecular oxidative bonds.
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https://hal.inrae.fr/hal-03325951
Contributor : Sylvain Guyot <>
Submitted on : Wednesday, August 25, 2021 - 2:15:58 PM
Last modification on : Wednesday, September 8, 2021 - 3:04:56 AM

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Melanie Millet, Ivana Horvat, Sophie Guilois-Dubois, Pascal Poupard, Sylvain Guyot, et al.. Reversible self-aggregation of oxidized tannins in model solutions. ICP 2018 The XXIXth International Conference on Polyphenols, Jul 2021, Madison, United States. ⟨hal-03325951⟩

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