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Fabrication and Evaluation of Active and Intelligent Food Packaging Films Based on Natural Polymers Containing Silica Nanoparticles, Quantum Dots, and Plant Extracts
, Ph.D. Dissertation Sharif University of Technology ; Pircheraghi, Gholamreza (Supervisor) ; Imani, Mohammad (Supervisor) ; Whan Rhim, Jong (Co-Supervisor) ; Douraghi, Masoumeh (Co-Supervisor)
Abstract
Growing global concerns about the safety and environmental impact of synthetic plastics have accelerated the search for natural and biodegradable alternatives in food packaging. This study focused on the design and evaluation of multifunctional, active, and intelligent packaging films based on biopolymers incorporated with functionalized nanoparticles and natural bioactive compounds. In the first stage, silica nanoparticles obtained from rice husk (SiNPs) were loaded with oak extract (OE) and integrated into quince seed mucilage/alginate (QSM/Alg) films. The nanocomposite films containing 5 wt% OE@SiNP exhibited excellent antioxidant activity (100% in ABTS and 40.9% in DPPH assays), strong...