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Updated: Feb 16, 2026

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends
Published on: January 17, 2017
Impact of food processing methods and polyphenol interactions on the structural integrity and functionality of wheat
Ziqi Guo1, Bruna Monteiro2, Sara da Silva2
1LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences of the University of Porto, Porto, Portugal; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China.
Abstract:
The growing market for plant-based foods is accelerating reformulation of wheat gluten-containing products and the need to control gluten functionality through processing. Conventional operations (mixing/kneading, fermentation, drying, baking/steaming) and emerging technologies (thermal treatments, high pressure, microwave, ultrasound, pulsed electric fields, enzymatic and chemical modification) impose mechanical and thermo-oxidative stresses that restructure gluten across length scales. A central mediator is gluten-polyphenol interactions: polyphenols bind non-covalently and may form quinone-mediated covalent adducts under oxidative conditions, thereby reorganizing gluten networks, dough rheology and techno-functional performance. This review synthesizes evidence from real food matrices on how processing parameters tune these interactions and, in turn, influence digestibility, polyphenol bioaccessibility and immunoreactivity via epitope masking/exposure and changes in digestion-derived peptides. Key gaps include inconsistent reporting of processing intensity, limited consideration of matrix effects and polyphenol speciation, and non-standardized immunoassays. Future directions focus on linking processing, structure, interactions and outcomes in standardized workflows.
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