Carvacrol loaded halloysite coatings for antimicrobial food packaging applications

Alkan Taş, Buket and Şehit, Ekin and Taş, Cüneyt Erdinç and Ünal, Serkan and Cebeci, Fevzi Çakmak and Menceloğlu, Yusuf Z. and Ünal, Hayriye (2019) Carvacrol loaded halloysite coatings for antimicrobial food packaging applications. Food Packaging and Shelf Life, 20 . ISSN 2214-2894

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Antimicrobial thin film coatings that can be utilized in food packaging provide an effective approach to enhance food quality and safety. Here, the coating of polyethylene films with an antimicrobial thin film through a Layer-by-Layer (LbL) assembly is demonstrated. Halloysite nanotubes (HNTs) which are tubular clay nanoparticles were utilized for the encapsulation and sustained release of carvacrol, the active component of essential thyme oil. Antimicrobial thin film coatings of 225 nm thickness were prepared by the deposition of ten bilayers of chitosan (CHI) and carvacrol loaded HNTs onto the polyethylene surface by spray LbL. Coated films reduced the viability of a food pathogen, Aeromonas hydrophila by 85% and the aerobic count on chicken meat surfaces by 48%. Furthermore, coated film surfaces demonstrated lower bacterial attachment compared to control polyethylene films indicating their antibiofilm character. Composed of natural and safe components, antimicrobial coatings developed in this study provide a novel and effective approach to obtain antimicrobial food packaging materials that can greatly contribute to food safety.
Item Type: Article
Uncontrolled Keywords: Antimicrobial food packaging; Carvacrol; Halloysite nanotubes; Thin film coating
Divisions: Integrated Manufacturing Technologies Research and Application Center
Sabancı University Nanotechnology Research and Application Center
Faculty of Engineering and Natural Sciences
Depositing User: Hayriye Ünal
Date Deposited: 27 Aug 2019 15:25
Last Modified: 12 Jun 2023 15:46

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