PDF(Pubmed)
Abstract：
Food waste is a pressing global challenge leading to over $1 trillion lost annually and contributing up to 10% of global greenhouse gas emissions. Extensive study has been directed toward the use of active biodegradable packaging materials to improve food quality, minimize plastic use, and encourage sustainable packaging technology development. However, this has been achieved with limited success, which can mainly be attributed to poor material properties and high production costs. In the recent literature, the integration of silver nanoparticles (AgNPs) has shown to improve the properties of biopolymer, prompting the development of bionanocomposites. Furthermore, the antibacterial properties of AgNPs against foodborne pathogens leads towards food shelf-life improvement and provides a route towards reducing food waste. However, few reviews have analyzed AgNPs holistically throughout a portfolio of biopolymers from an industrial perspective. Hence, this review critically analyses the antibacterial, barrier, mechanical, thermal, and water resistance properties of AgNP-based bionanocomposites. These advanced materials are also discussed in terms of food packaging applications and assessed in terms of their performance in enhancing food shelf-life. Finally, the current barriers towards the commercialization of AgNP bionanocomposites are critically discussed to provide an industrial action plan towards the development of sustainable packaging materials to reduce food waste.
摘要：
食物浪费是一项紧迫的全球挑战，每年损失超过1万亿美元，占全球温室气体排放量的10%。广泛的研究已经针对使用活性生物可降解包装材料来提高食品质量，尽量减少塑料的使用，鼓励可持续包装技术发展。然而,这取得了有限的成功，这主要归因于材料性能差和生产成本高。在最近的文学中，银纳米粒子（AgNPs）的整合已显示出改善生物聚合物的性能，促进了生物纳米复合材料的发展。此外，AgNP对食源性病原体的抗菌特性导致食品保质期的改善，并提供了减少食品浪费的途径。然而,很少有评论从工业角度全面分析了整个生物聚合物组合中的AgNPs。因此，这篇综述批判性地分析了抗菌，屏障,机械,热,AgNP基生物纳米复合材料的耐水性能。这些先进的材料还在食品包装应用方面进行了讨论，并根据其在提高食品保质期方面的性能进行了评估。最后,严格讨论了AgNP生物复合材料商业化的当前障碍，以提供开发可持续包装材料以减少食物浪费的工业行动计划。
