Journal
ADVANCES IN COLLOID AND INTERFACE SCIENCE
Volume 300, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cis.2021.102593
Keywords
Nanocomposites; Titanium dioxide nanoparticles; Food packaging; Photocatalytic activity; Migration phenomenon
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This article comprehensively reviews the functional properties and advantages of smart/active films containing titanium dioxide nanoparticles. The addition of titanium dioxide nanoparticles can improve various properties of food packaging materials and offer antimicrobial and photocatalytic properties.
Environmental issues such as plastic packaging and high demand for fresh and safe food has increased the interest for developing smart/active food packaging films with colloidal nanoparticles (NPs). Titanium dioxide nanoparticles (TNPs) are cost effective and stable metal oxide NPs which could be used as a functional nano-filler for biodegradable food packaging due to their excellent biocompatibility, photo catalyzing, and antimicrobial properties. This article has comprehensively reviewed the functional properties and advantages of TNPscontaining smart/active films. The advantage of adding TNPs for ameliorating food packaging materials such as their physical, mechanical, moisture/light barrier, optical, thermal resistance, microstructure and chemical properties as well as, antibacterial, and photocatalytic properties are discussed. Also, the practical and migration properties of administrating TNPs in food packaging material are investigated. The ethylene decomposition activity of TNPs containing active films, could be used for increasing the shelf life of fruits/vegetables after harvesting. TNPs are safe with negligible migration rates which could be used for fabrication of multifunctional smart/active packaging films due to their antimicrobial properties and ethylene gas scavenging activities.
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