Physicochemical stability, antioxidant activity, and antimicrobial activity of quercetin-loaded zein nanoparticles coated with dextrin-modified anionic polysaccharides

•ZCNPs with core–shell biopolymer nanoparticles were assembled by a simple method.•Main source of raw material for ZCNPs preparation is maize processing byproducts.•Quercetin-ZCNPs exhibit good biological activity and physicochemical stability.•A valuable reference for the oral utilization of hydrop...

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