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Construction of hollow zein-chitosan encapsulated peimine-curcumin self-assembled microparticles with enhanced stability and sustained release
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DOI:10.1016/j.lwt.2026.119177.png)
Abstract
En 中文
Peimine (P) and curcumin (CM) possess significant bioactivities but suffer from poor water solubility, low bioavailability, and limited stability. To address these challenges, P-CM self-assembled microparticles (SMPs) were prepared via non-covalent interactions and systematically characterized. The results demonstrated that optimal self-assembly reaction conditions occurred at pH 9, 25 degrees C, and a P:CM molar ratio of 1:1, yielding uniform nanoparticles (284 nm, PDI = 0.202) with a zeta potential of -19.77 mV. P-CM SMPs exhibited superior antioxidant activities, with ABTS, DPPH radical scavenging activity and FRAP values of 62.69%, 34.18%, and 81.02%, respectively, as well as enhanced anti-inflammatory activity compared to their individual components. To further improve stability and control release, the P-CM SMPs were encapsulated in a hollow zein-chitosan (HZ-CH) composite, achieving high encapsulation efficiency (96.0%). HZ-CH-SMPs exhibited storage stability over time and sustained-release behavior under simulated gastrointestinal conditions. This study provides a theoretical basis for designing delivery strategies integrating molecular self-assembly and protein-polysaccharide encapsulation to overcome solubility and bioavailability limitations of bioactive compounds in functional foods.
Keywords:
Peimine
Curcumin
Self-assembly
Hollow zein-chitosan composite
Delivery system
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IF:
6.6
Papers:
1.6W
Citations:
8.6W
