Gelatin Films Activated by Cinnamon Essential Oil and Reinforced with 1D, 2D and 3D Nanomaterials: Physical and Release Controlling Properties

• Published in: Journal of polymers and the environment 2021-09, Vol.29 (9), p.3068-3078
• Main Authors: Amjadi, Sajed, Almasi, Hadi, Pourfathi, Behboud, Ranjbaryan, Saeed
• Format: Article
• Language: English
• Subjects: Biopolymers; Cellulose; Cellulose fibers; Chemistry; Chemistry and Materials Science; Diffusion coefficient; Diffusion rate; Environmental Chemistry; Environmental Engineering/Biotechnology; Essential oils; Gelatin; Industrial Chemistry/Chemical Engineering; Materials Science; Mechanical properties; Montmorillonite; Morphology; Nanofibers; Nanomaterials; Nanoparticles; Nanotechnology; Oils & fats; Original Paper; Physicochemical properties; Polymer Sciences; Titanium dioxide
• ISSN: 1566-2543; 1572-8919
• DOI: 10.1007/s10924-021-02097-3

The aim of this study was to assess the effect of sodium montmorillonite (MMT), cellulose nanofibers (CNF) and titanium dioxide nanoparticles (TiO 2 NPs) on the physicochemical properties and release profile of the gelatin-based film activated with cinnamon essential oil (CEO). The results of FT-IR, XRD, FE-SEM and tensile analysis showed that the incorporation of nanofillers caused to different changes in the morphology, crystalline structure, and mechanical properties of gelatin films that were correlated with their morphology. The water barrier properties of films significantly increased by incorporation of nanofillers and MMT had the highest improving effect. As results of release profile study, MMT incorporated active film exhibited the slowest release rate with the lowest diffusion coefficient (8.67 ± 0.52 × 10 −8 cm 2 s −1 at 25 °C), and highest activation energy (14.87 ± 1.11 kJ mol −1 ). In conclusion, nanolayers such as MMT were suggested as the best candidate to use as simultaneous reinforcement and release controlling agent in the activated biopolymer-based films.