目的 开发一款在常温下不需要借助其他保鲜设备，就能够延长香蕉和猕猴桃保鲜时间的纸箱，为果蔬提供一种便捷且实惠的保鲜方式。方法 环糊精自组装成纳米微球，将1-MCP气体包载，形成微球保鲜剂，然后对微球中1-MCP含量、释放速率进行测试，并对与保鲜剂复合后的保鲜纸箱进行香蕉/猕猴桃保鲜测试。结果 马尔文粒径分析结果表明，微球粒子平均尺寸为23.39 nm，标准偏差为1.81 nm；热重分析测试结果表明，包载到微球内的1-MCP气体质量分数约为2%，质量损失峰在180~210 ℃之间，微球保鲜剂中1-MCP的释放速率会随周围环境湿度的增大而增大。结论 该保鲜纸箱在日常室内环境下，能够将香蕉和猕猴桃的保鲜时间延长2~3倍。

The work aims to develop a carton that can prolong the preservation time for bananas and kiwis at room temperature without any other fresh-keeping equipment, so as to provide a convenient and cheap fresh-keeping method for fruit and vegetable. The 1-MCP gas was loaded in the nano microspheres self-assembled by cyclodextrin to form the microsphere preservative. Then, the amount and release rate of 1-MCP in microspheres were tested. The fresh-keeping tests of bananas/kiwis in the fresh-keeping carton recombined with the preservative were conducted. The Malvern particle size analysis results indicated that, the average size of microsphere particles was 23.39 nm with the standard deviation of 1.81 nm. The test results of thermogravimetric analysis showed that, the mass fraction of 1-MCP gas loaded in the microspheres was about 2%, and the mass loss peak was between 180~210 ℃. The release rate of 1-MCP in the microsphere preservative would increase as the ambient humidity increased. The fresh-keeping carton can prolong the preservation time for the bananas and kiwis by 2~3 times under daily indoor environment.