The postharvest physiological and metabolic activities caused fruits and vegetables (F&V) quality deterioration. Therefore, developing an efficient preservation strategy is a promising approach to relieve this issue. In this study, a modified metal-organic framework (MOF; i.e., Cer@MHKUST-1) was encapsulated into a blended matrix of chitosan quaternary ammonium salt (CQAS)/gelatin to fabricate a multifunctional (water-locking, ethylene-removing, and antibacterial) packaging biopolymer-based film (i.e., CMCGF), the characteristics and preservative effects of the packaging were investigated. Results indicated that the physicochemical (e.g., mechanical, gas/light barrier, wettability) properties of CMCGF were improved compared with the control film (i.e., CGF). CMCGF have a higher ethylene adsorption performance of 65–69 cm³/g STP compared with CGF (7.8 cm³/g STP). Cu ions released from CMCGF destroyed the cell wall and membrane, resulting in the death of bacteria, and the antibacterial efficiency of CMCGF against E. coli and S. aureus was 97–100 % and 98–100 %, respectively. Postharvest storage experiments on tomato and winter jujube confirmed the high-efficiency preservation effect of CMCGF packaging. Therefore, CMCGF provides a multifunctional approach to extending the shelf-life of perishable products to decrease food wastage.

采后生理和代谢活动导致水果和蔬菜 (F&V) 品质下降。因此，制定有效的保存策略是缓解这一问题的有前途的方法。在这项研究中，将改性金属有机框架（MOF；即 Cer@MHKUST-1）封装到壳聚糖季铵盐（CQAS）/明胶的混合基质中，以制造多功能（锁水、除乙烯、和抗菌）包装生物聚合物基薄膜（即CMCGF），研究了包装的特性和防腐效果。结果表明，与对照薄膜（即 CGF）相比，CMCGF 的物理化学（例如，机械、气体/光阻隔、润湿性）特性得到改善。CMCGF 具有较高的乙烯吸附性能，为 65–69 cm ³/g STP 与 CGF (7.8 cm ³ /g STP) 相比。CMCGF释放的Cu离子破坏细胞壁和细胞膜，导致细菌死亡，CMCGF对大肠杆菌和金黄色葡萄球菌的抗菌效率分别为97-100%和98-100%。番茄、冬枣的采后贮藏实验证实了CMCGF包装的高效保鲜效果。因此，CMCGF 提供了一种多功能方法来延长易腐产品的保质期以减少食物浪费。