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Dridi W, Bordenave N. Influence of polysaccharide concentration on polyphenol-polysaccharide interactions. Carbohydr Polym. 2021;274:118670doi: 10.1016/j.carbpol.2021.118670.
Dridi, W., & Bordenave, N. (2021). Influence of polysaccharide concentration on polyphenol-polysaccharide interactions. Carbohydrate polymers, 274118670. https://doi.org/10.1016/j.carbpol.2021.118670
Dridi, Wafa, and Bordenave, Nicolas. "Influence of polysaccharide concentration on polyphenol-polysaccharide interactions." Carbohydrate polymers vol. 274 (2021): 118670. doi: https://doi.org/10.1016/j.carbpol.2021.118670
Dridi W, Bordenave N. Influence of polysaccharide concentration on polyphenol-polysaccharide interactions. Carbohydr Polym. 2021 Nov 15;274:118670. doi: 10.1016/j.carbpol.2021.118670. Epub 2021 Sep 15. PMID: 34702486.
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Carbohydr Polym. 2021 Nov 15;274:118670. doi: 10.1016/j.carbpol.2021.118670. Epub 2021 Sep 15.

Influence of polysaccharide concentration on polyphenol-polysaccharide interactions.

Carbohydrate polymers

Wafa Dridi, Nicolas Bordenave

Affiliations

  1. School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Canada.
  2. School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Canada; School of Chemistry and Biomolecular Sciences, Faculty of Sciences, University of Ottawa, Canada. Electronic address: [email protected].

PMID: 34702486 DOI: 10.1016/j.carbpol.2021.118670

Abstract

Non-covalent interactions between polysaccharides and phenolics affect the physical properties of polysaccharide solutions. These interactions may in turn be influenced by polysaccharide-polysaccharide interactions. To test this hypothesis, we studied the influence of polysaccharide concentration (with guar, β-glucans, and xanthan) on the variations of rheological and water-binding properties upon addition of phenolics compounds (vanillin, caffeic acid, gallic acid, and epigallocatechin gallate). Addition of phenolics led to increased flow behavior index and decreased flow consistency index, with maximum effects at polysaccharide concentrations ranging between 0.6 × C* and 1.4 × C*, where C* is the critical overlap concentration of each polysaccharide. Water mobility was generally not significantly influenced by the addition of phenolics. The results showed that the ability of phenolic compounds to induce aggregation of polysaccharides in solution was strongly influenced by polysaccharide concentration around C* and therefore by polysaccharide-polysaccharide interactions.

Copyright © 2021 Elsevier Ltd. All rights reserved.

Keywords: Aggregation; Critical overlap concentration; Phenolic compounds; Polysaccharides; Rheology; Water mobility

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