The increasing issue of plastic waste necessitates improved solutions, and biodegradable food packaging is a promising alternative to traditional plastic. In this study, we prepared packaging films using cassava starch (CV), chitosan (CT) and carboxymethyl cellulose (CMC), with glycerol as a plasticizer. However, these films require modifications to enhance their mechanical properties. Therefore, we modified the films by adding vanillin as the crosslinking agent and gingerol extract stabilized silver nanoparticles. The films were fabricated using the film-casting method and characterized by FTIR, XRD, SEM, TGA, mechanical property test, biodegradability test, anti-bacterial test and food packaging evaluation test. Among these films, CT/CV/V/CMC/Gin-AgNPs1 exhibited superior mechanical properties and demonstrated excellent anti-bacterial property both for gram-positive (S. aureus) and gram-negative (E. coli) bacteria and biodegradability, losing over _50% of its weight after 21 days of burial in soil and effectively preserved grapes at 4 °C for 21 days.

中文翻译：

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基于甘蔗渣/木薯淀粉/壳聚糖/姜辣素提取物稳定银纳米颗粒 （Gin-AgNPs） 和香兰素作为交联剂的羧甲基纤维素的可生物降解抗菌食品包装


日益严重的塑料垃圾问题需要改进的解决方案，而可生物降解的食品包装是传统塑料的有前途的替代品。在这项研究中，我们使用木薯淀粉 （CV）、壳聚糖 （CT） 和羧甲基纤维素 （CMC），以甘油为增塑剂制备了包装薄膜。然而，这些薄膜需要改性以增强其机械性能。因此，我们通过添加香兰素作为交联剂和姜辣素提取物稳定的银纳米颗粒来修饰薄膜。采用流延薄膜法制备薄膜，并经 FTIR、XRD、SEM、TGA、机械性能测试、生物降解性测试、抗菌测试和食品包装评价测试进行表征。在这些薄膜中，CT/CV/V/CMC/Gin-AgNPs1 表现出优异的机械性能，对革兰氏阳性菌（金黄色葡萄球菌）和革兰氏阴性菌（大肠杆菌）均表现出优异的抗菌性能和生物降解性，在土壤中埋藏 21 天后重量减轻了 _50% 以上，并在 4 °C 下有效保存了葡萄 21 天。