Packaging material should meet many requirements for safe preservation of food and extend shelf life. Utilization of nanoparticles to prepare active packaging films has been widely investigated. This review deals with food packaging films modified with nanotitania to enhance mechanical, barrier and antibacterial properties of the packages. The photocatalytic activity of TiO 2 nanoparticles extended its application to antimicrobial food packaging, photocatalytic paper and toxin passivation and deodorizing. Different TiO 2 morphologies are favorable in many potential applications such as in environmental purification. Finally, this review will also discuss safety assessment of nanomaterials used in food packaging and migration mechanism into food staff.
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