Linear low-density polyethylene modified with D-limonene/β-cyclodextrin inclusion complex: Antimicrobial composite for active food packaging
[ 1 ] Instytut Technologii Materiałów, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 2 ] Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee | [ S ] student
2024
scientific article
english
- antibacterial properties
- composites
- food packaging material
- mechanical properties
- polyethylene (PE)
- UV–vis spectroscopy
EN Linear low-density polyethylene (PE) containing an inclusion complex composed of β-cyclodextrin and d-limonene (CD-lim) is proposed as an innovative food wrapping material with antimicrobial features. PE/CD-lim composites are prepared by conventional, high-volume processing, and the optical and mechanical properties of the developed formulations appear suitable for their use as food packaging materials. Compared to plain PE, the PE/CD-lim films have improved haze and UV–vis outcomes, but also decreased gloss values. Addition of CD-lim slightly increases water uptake, up to levels suitable for the foreseen application. It also allows to improve performance of PE as food packaging material, since the PE/CD-lim composites provide barrier to ultraviolet light, an added value for packaging of fatty acids-containing food items, whose shelf life is often limited by oxidation caused by UV light. Most importantly, PE/CD-lim composites exhibit significant antimicrobial properties against a wide range of microorganisms, including fungi and bacteria. Hence, PE films containing CD-lim display suitable properties to play a role as active food packaging films.
12.10.2023
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