魔芋葡甘露聚糖/纳米ZnO复合涂膜对香蕉常温保鲜效果的影响  

Influence of Konjac Glucomannan/nano-ZnO Composite Coating on the Preservation Effect of Bananas at Room Temperature

作　　者：韦巧艳[1] 成清岚 陈碧[1] 张鹏[1] 覃逸明[1] WEI Qiao-yan;CHENG Qing-lan;CHEN Bi;ZHANG Peng;QIN Yi-ming(Guangxi Science&Technology Normal University,Laibin 546199,China)

机构地区：[1]广西科技师范学院,广西来宾546199

出　　处：《包装工程》2020年第5期49-55,共7页Packaging Engineering

基　　金：2016年度广西高校中青年教师基础能力提升项目(KY2016YB557);广西糖资源工程技术研究中心培育建设项目(桂科AD16450040);广西高校制糖工程综合技术重点实验室培育建设项目(桂教科研[2016]6号)。

摘　　要：目的探讨魔芋葡甘露聚糖/纳米ZnO复合涂膜对常温贮藏香蕉保鲜效果的影响,为香蕉的采后常温保鲜贮藏提供新途径。方法以巴西蕉为实验材料,采用KGM涂膜液(A组)和KGM/纳米ZnO复合涂膜液(B组)等2种可食性涂膜液对香蕉进行涂膜处理,以不做任何处理为对照(CK组),置于夏季常温(32±2)℃下贮藏,每天取样测定果实的好果率、褐变指数、质量损失率、可溶性固形物含量、Vc含量等指标。结果在整个贮藏期间,与KGM涂膜和对照组相比,KGM/纳米ZnO复合膜能显著维持香蕉的好果率,抑制香蕉的褐变,降低香蕉在贮藏期的质量损失率,减少可溶性固形物和维生素C等营养物质的损失。结论 KGM/纳米ZnO复合涂膜液对采后香蕉的常温贮藏效果最好,能够维持香蕉较好的贮藏品质。The work aims to study the effects of konjac glucomannan/nano-ZnO composite coating on banana preservation at room temperature, in order to provide a new way for post-harvest storage of bananas at room temperature. With Brazil bananas as experimental material, two edible coating solutions like KGM hydrosol(group A) and KGM/nano-ZnO composite hydrosol(group B) were used for coating treatment of bananas, and the non-treated bananas were considered as control(group CK). Both treated and non-treated bananas were stored at room temperature of(32±2)℃ in summer. Sampling was done every day to measure the banana’s good fruit rate, browning index, weight loss rate, soluble solids content, Vc content and other indexes. The results showed that, in the whole storage period, compared with KGM coating and control group, KGM/nano-ZnO composite coating could significantly maintain the good fruit rate, inhibit the browning, reduce the weight loss rate in the storage period and decrease the loss of nutrients such as soluble solids and vitamin C of banana. The KGM/nano-ZnO composite coating solution has the best effect on the storage of post-harvest bananas at room temperature, which can maintain its high storage quality.

关 键 词：魔芋葡露甘聚糖 纳米ZNO 香蕉 保鲜 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]