Dash Kshirod Kumar, Deka Pinky, Bangar Sneh Punia, Chaudhary Vandana, Trif Monica, Rusu Alexandru
Department of Food Processing Technology, Ghani Khan Choudhury Institute of Engineering and Technology Malda, Kolkata 732141, India.
Department of Applied Biology, University of Science & Technology, Techno City 793200, India.
Polymers (Basel). 2022 Jan 27;14(3):521. doi: 10.3390/polym14030521.
Nanoparticles (NPs) have acquired significance in technological breakthroughs due to their unique properties, such as size, shape, chemical composition, physiochemical stability, crystal structure, and larger surface area. There is a huge demand for packaging materials that can keep food fresher for extended periods of time. The incorporation of nanoscale fillers in the polymer matrix would assists in the alleviation of packaging material challenges while also improving functional qualities. Increased barrier properties, thermal properties like melting point and glass transition temperatures, and changed functionalities like surface wettability and hydrophobicity are all features of these polymers containing nanocomposites. Inorganic nanoparticles also have the potential to reduce the growth of bacteria within the packaging. By incorporating nano-sized components into biopolymer-based packaging materials, waste material generated during the packaging process may be reduced. The different inorganic nanoparticles such as titanium oxide, zinc oxide, copper oxide, silver, and gold are the most preferred inorganic nanoparticles used in food packaging. Food systems can benefit from using these packaging materials and improve physicochemical and functional properties. The compatibility of inorganic nanoparticles and their various forms with different polymers make them excellent components for package fortification. This review article describes the various aspects of developing and applying inorganic nanoparticles in food packaging. This study provides diverse uses of metals and metal oxides nanoparticles in food packaging films for the development of improved packaging films that can extend the shelf life of food products. These packaging solutions containing nanoparticles would effectively preserve, protect, and maintain the quality of the food material.
纳米颗粒（NPs）因其独特的性质，如尺寸、形状、化学成分、物理化学稳定性、晶体结构和较大的表面积，在技术突破中具有重要意义。对能够长时间保持食品新鲜度的包装材料有巨大需求。在聚合物基体中加入纳米级填料将有助于缓解包装材料面临的挑战，同时还能改善功能特性。这些含有纳米复合材料的聚合物具有增强的阻隔性能、诸如熔点和玻璃化转变温度等热性能，以及诸如表面润湿性和疏水性等改变的功能特性。无机纳米颗粒还有潜力减少包装内细菌的生长。通过将纳米尺寸的成分加入到基于生物聚合物的包装材料中，可以减少包装过程中产生的废料。不同的无机纳米颗粒，如氧化钛、氧化锌、氧化铜、银和金，是食品包装中最常用的无机纳米颗粒。食品系统可以从使用这些包装材料中受益，并改善物理化学和功能特性。无机纳米颗粒及其各种形式与不同聚合物的相容性使其成为包装强化的优良成分。这篇综述文章描述了在食品包装中开发和应用无机纳米颗粒的各个方面。本研究提供了金属和金属氧化物纳米颗粒在食品包装薄膜中的多种用途，以开发能够延长食品保质期的改进包装薄膜。这些含有纳米颗粒的包装解决方案将有效地保存、保护和维持食品原料的质量。
