Food Biopolymer Research Group, Food Technology Division, School of Industrial Technology, University Sains Malaysia, Minden, Penang, Malaysia.
Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
Crit Rev Food Sci Nutr. 2021;61(16):2640-2658. doi: 10.1080/10408398.2020.1783200. Epub 2020 Jul 7.
New food packaging materials provide an attractive option for the advancement of nanomaterials. The poor thermal, mechanical, chemical, and physical properties of biopolymers and their inherent permeability to gases and vapor have increased this interest. Polymeric materials (matrix) in modern technologies require a filler, which can react/interact with the available matrix to provide a new formulation with improved packaging properties including oxygen permeability, moisture permeability, crystalline structure, barrier properties, morphology, thermal stability, optical properties, anti-microbial characteristics, and mechanical properties. The performance of nanocomposite films and packaging is dependent on the size of the nanofillers used and the uniformity of the nanoparticles (NPs) distribution and dispersion in the matrix. Advancement in nanocomposite technologies is expected to grow with the advent of sustainable, low price, environmentally friendly materials with an enhanced performance. The current review addresses advances in the biopolymeric nanocomposites as alternatives to petroleum plastics in the food packaging industry. It also provides a brief description of biopolymer nanocomposite films and gives general information about different metal NPs with an emphasis on their influence on the emerging characteristics of biodegradable films. The results of recent reports provide a better understanding of the influence of metal NPs in food packaging.
新型食品包装材料为纳米材料的发展提供了极具吸引力的选择。生物聚合物较差的热学、力学、化学和物理性能及其对气体和蒸汽的固有渗透性增加了人们对此的兴趣。现代技术中的聚合材料（基质）需要一种填料，它可以与可用的基质发生反应/相互作用，提供具有改进包装性能的新配方，包括氧气渗透性、水分渗透性、结晶结构、阻隔性能、形态、热稳定性、光学性能、抗菌特性和力学性能。纳米复合材料薄膜和包装的性能取决于所用纳米填料的尺寸以及纳米颗粒（NPs）在基质中的分布和分散的均匀性。随着具有增强性能的可持续、低价、环保材料的出现，预计纳米复合材料技术将得到发展。本综述讨论了生物聚合物纳米复合材料作为石油塑料在食品包装工业中的替代品的进展。它还简要描述了生物聚合物纳米复合材料薄膜，并提供了关于不同金属 NPs 的一般信息，重点介绍了它们对可生物降解薄膜新兴特性的影响。最近报告的结果提供了对金属 NPs 在食品包装中影响的更好理解。
