ArticleFoods (Basel, Switzerland)2025
Formation and Characterization of Bifunctional Nanoparticles Fabricated from Insoluble Rice Peptide Aggregate: Effect of Enzymes.
Article in Foods (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Protein-β-Glucan Nanoparticle-Enriched Peach Juice: In Vitro Bioaccessibility, Metabolic Enzyme Inhibition, and Sensory Evaluation.Foods (Basel, Switzerland) · 2026Article
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Authors and funding
4 authors.
Funding
Abstract
This study systematically investigates the effects of enzyme type (Alcalase, Trypsin, Protamex) on the properties of rice peptide nanoparticles (RPNs) and their efficacy in stabilizing high internal phase emulsions (HIPEs). RPNs prepared with Alcalase (RPNs-alc) exhibited the smallest particle size (≈379.6 nm), a uniform unimodal distribution, the highest content of hydrophobic amino acid, and the strongest DPPH (2,2-Diphenyl-1-picrylhydrazyl) radical scavenging activity (57.32%). In contrast, RPNs from Protamex (RPNs-pro) showed larger, heterogeneous particles with a bimodal distribution and lower antioxidant capacity. Interfacial characterization revealed that RPNs-alc had a superior three-phase contact angle, indicating enhanced interfacial activity. Structural stability analysis confirmed that hydrophobic interactions and hydrogen bonds are the primary forces maintaining all RPNs. Consequently, HIPEs stabilized by RPNs-alc and RPNs-typ displayed solid-like behavior and a regular network microstructure, leading to exceptional physical stability. Conversely, RPNs-pro led to unstable HIPEs with non-uniform droplets and interfacial aggregation, promoting droplet flocculation. These findings demonstrate that enzyme selection critically determines the functional properties of RPNs, with Alcalase-derived RPNs being the most effective bifunctional particles, offering a viable pathway for valorizing proteolytic by-products in fabricating stable, antioxidant-rich Pickering emulsions.
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