纳米二氧化钛抗菌食品包装复合膜的研究进展

Research progress of nano-titanium dioxide in antimicrobial food packaging composite film

中文关键词:  纳米二氧化钛  抗菌  食品包装  复合膜  迁移

英文关键词:nano-titanium dioxide  antimicrobial  food packaging  composite film  migration

中文摘要:

      纳米二氧化钛(titanium dioxide, TiO2)具有较好的抗菌作用, 且在传统包装材料中有较好的分散性, 添加了纳米TiO2的食品包装薄膜具有较好的抗菌效果, 能在一定程度上延长食品的保质期。目前, 有较多关于纳米TiO2食品包装复合膜的研究, 主要是围绕抗菌性, 机械性能和安全性等方面展开, 研究表明纳米TiO2复合膜的抗菌性受光照影响; 复合膜的机械性能、热力学性能和阻隔性等随纳米TiO2的加入有所改变; 复合膜中的纳米TiO2可能会迁移到包装的食品中, 造成食品安全隐患; 制备复合膜时需综合考虑以上因素。本文主要对纳米TiO2的抗菌机理、纳米TiO2抗菌食品包装薄膜的制备和应用、纳米TiO2的迁移研究进展进行概述, 旨在扩展纳米TiO2复合膜更好更安全地应用于食品包装。

英文摘要:

      Nano-titanium dioxide has good antibacterial effect, and it disperses well in traditional packaging materials. The packaging film with nano-titanium dioxide added has effective antibacterial activity, so it can prolong the shelf life of products to some extent. There is an increasing number of researches about nano-titanium dioxide in packaging film, most of which are focused on antibacterial property, mechanical properties and safety. Researches show that the antibacterial property of the composite film is affected by illumination. The addition of nano-titanium dioxide will affect the mechanical properties, thermodynamic properties and barrier properties of the packaging film. Nano-titanium dioxide in packaging films may migrate to packaged foods and pose food safety risks. The above factors should be considered comprehensively when preparing nano-titanium dioxide composite packaging film. This paper summarized the antibacterial mechanism of nano-titanium dioxide, the preparation and application of nano-titanium dioxide antibacterial food packaging film, as well as the research progress of nano-titanium dioxide migration, aiming to expand nano-titanium dioxide composite film to be better and safer used in food packaging.