Abstract：
The development of biodegradable antimicrobial bioplastics for food packaging holds great promise for solving the pollution and safety problems caused by petrochemical plastics and spoiled food. Herein, a natural active-bioplastic synthesized from citrus peel biomass is presented for perishable fruit preservation. These plastics are characterized by the nanoscale entanglement and recombinant hydrogen bonding between the endogenous pectin, polyphenols and cellulose micro/nanofibrils. They have attractive flexibility, tensile strength, gas barrier properties and antimicrobial activities, and can effectively extend the shelf life of perishable fruits such as banana and mango when used as food packaging. Cytotoxicity, degradability tests and life-cycle assessment show that these plastics had excellent nontoxicity and can be safely degraded or easily recycled. This work demonstrates a sustainable strategy for converting peel waste into eco-friendly bioplastics, providing a unique and novel insight into radically reducing the pollution and life-health threats posed by petrochemical plastics and spoiled food.
摘要：
用于食品包装的可生物降解抗菌生物塑料的开发对于解决石化塑料和变质食品造成的污染和安全问题具有巨大的前景。在这里，提出了一种由柑橘皮生物质合成的天然活性生物塑料，用于易腐水果的保存。这些塑料的特点是内源性果胶之间的纳米级缠结和重组氢键，多酚和纤维素微/纳米原纤维。他们有吸引力的灵活性，抗拉强度,气体阻隔性能和抗菌活性，当用作食品包装时，可以有效延长易腐水果如香蕉和芒果的保质期。细胞毒性,降解性测试和生命周期评估表明，这些塑料具有优异的无毒性，可以安全降解或易于回收。这项工作展示了将果皮废物转化为环保生物塑料的可持续战略，为从根本上减少石化塑料和变质食品带来的污染和生命健康威胁提供了独特而新颖的见解。
