Journal of
eISSN: 2373-4310
Submit manuscript...
Research Article Volume 14 Issue 2
Biodegradable films composed of active nanopolyphenolic compounds extracted from olive leaves and pomace for food packaging applications
Hosam El Din Aboul anean, Mohamed Abdin, Eman A Abdel Khafar, Munirah Fayez Almudarra, L O Mallasiy
Received: May 18, 2026 | Published: July 7, 2026
Citation: Anean HEDA, Abdin M, Khafar EAA, et al.Biodegradable films composed of active nanopolyphenolic compounds extracted from olive leaves and pomace for food packaging applications. J Nutr Health Food Eng. 2026;14(2):83-97. DOI: 10.15406/jnhfe.2026.14.00391
Abstract
This study aimed to develop biodegradable, active, edible films based on calcium alginate, incorporating nanopolyphenolic antimicrobials from olive leaf extract (OLE) and olive pomace extract (OPE), combined with ZnO nanoparticles (ZnONPs) in a nanoemulsion. The nanoemulsion and film-forming solutions were characterized by particle size distribution, zeta potential, rheology, FTIR, and scanning electron microscopy (SEM). Film properties (thickness, tensile strength, elongation, and solubility) were evaluated, and the resulting coatings/films were applied to fresh persimmon fruit stored at 5 ± 1°C and 90–95% RH for 20 days. Compared with the uncoated control (A), all nano-coated treatments (B–D) reduced microbial growth, slowed physicochemical deterioration, and extended shelf life, with antimicrobial effectiveness increasing with higher nanoemulsion concentration (B < C < D). The improved preservation performance was attributed to the combined action of phenolic compounds and ZnONPs, which enhanced film stability and functionality while maintaining acceptable sensory quality and suitable gas and moisture barrier properties. Overall, calcium alginate films enriched with OLE/OPE–ZnONPs nanoemulsions show promise as potentially effective, low-cost edible coatings/films for fruit preservation and broader food packaging applications
Keywords: fresh persimmons fruit, shelf-life, biodegradable films, calcium alginate, action of phenolic compounds in Olive Leaves Extract (OLE) and Olive pomace Extract (OPE)/ZnONPs synthetic nanoemulsion
©2026 Anean, et al. This is an open access article distributed under the terms of the, which permits unrestricted use, distribution, and build upon your work non-commercially.