三种壳聚糖涂膜剂的抑菌效果及对猕猴桃的防腐保鲜作用  

Antibacterial Effect of Chitosan Coating Agent and Its Preservative Effect to Kiwifruit

作　　者：王丽[1] 徐红[1] 黄亚励[1] 张奇龙[1] 徐科[1] 刘红[1] 

机构地区：[1]贵阳医学院化学教研室,贵州贵阳550004

出　　处：《贵阳医学院学报》2013年第5期502-504,共3页Journal of Guiyang Medical College

摘　　要：目的:寻找对猕猴桃有较好保鲜效果的壳聚糖涂膜剂配方。方法:以2%的柠檬酸为溶剂配制3种壳聚糖(CTS)涂膜剂(T),T1为CTS加苯甲酸钠加柠檬酸,T2为CTS加乳酸钙加柠檬酸,T3为CTS加柠檬酸;用3种CTS涂膜剂涂膜猕猴桃,观察果实的失重率及腐烂指数,同时观察3种涂膜剂的抑菌活性。结果:3种涂膜剂均有一定的抑菌作用,其中涂膜剂T1、T2的抑菌效果比涂膜剂T3的抑菌效果好,但差异不具有统计学意义;3种涂膜剂均能降低猕猴桃失重率并减少腐烂的发生,经涂膜剂T2处理的猕猴桃比T1和T3组对猕猴桃的失重率的控制更优,且经涂膜剂T2处理的猕猴桃在储存过程中出现腐烂的情况最少。结论:CTS涂膜剂可以延长猕猴桃存储时间,增强保鲜效果,添加了乳酸钙的涂膜剂保鲜效果较好,可能与乳酸钙有一定抑菌作用有关。Objective： To look for recipe of chitosan（CTS） balm with better preservation effect to ki- wifruit. Methods： Three different film-protection eagents were prepared with CTS. The decay index number, weight loss of kiwifruits coated were investigated under refrigeration condition during storage. The bacteria-inhibitory effects of different coating agent were studied. Results： The decay situation decreased, and the weight loss rates were lower when kiwifruits were treated with the coating agents. The 3 coating agents tested all showed certain antibacterial effects. Conclusions： CTS coating agents can extend the storage time of kiwifruits, and enhance the preservation effects.

关 键 词：壳聚糖 涂膜剂 保鲜 猕猴桃 抑菌效果 

分 类 号：S482.295[农业科学—农药学] S509.3[农业科学—植物保护]