壳聚糖-CMC复合膜对小贵妃芒果贮藏品质的影响  

Effects of Chitosan-CMC Composite Film on the Storage Quality of Xiaoguifei Mango Fruit

作　　者：李进红 李丽 吴健华[1] 罗照西 黄云[1] 陈太萍 LI Jin-hong;LI Li;WU Jian-hua(Panzhihua Academy of Agricultural and Forestry Sciences,Panzhihua,Sichuan 617000)

机构地区：[1]攀枝花市农林科学研究院,四川攀枝花617000

出　　处：《安徽农业科学》2024年第19期164-167,171,共5页Journal of Anhui Agricultural Sciences

基　　金：四川省科技厅定向财力转移支付项目(2017NZYZF0119);四川省科普培训项目(2019JDKP0034);攀枝花市现代特色农业产业技术体系创新团队项目(2020006)。

摘　　要：[目的]研究壳聚糖-羧甲基纤维素钠(CMC)复合膜对小贵妃芒果贮藏品质的影响。[方法]以壳聚糖和CMC为成膜剂,制备壳聚糖膜、CMC膜、壳聚糖-CMC复合膜,以这3种膜处理的小贵妃芒果分别为A、B、C组,并设置CK组。在室温(20±2)℃下贮藏,通过测定A、B、C、CK组的病情指数、腐烂率、失重率、酸度、可溶性固形物和扫描电镜分析,研究3种膜对小贵妃芒果贮藏品质的影响。[结果]贮藏20 d后,复合膜处理的小贵妃芒果病情指数、腐烂率和失重率最低,酸度和可溶性固形物含量最高。扫描电镜分析发现复合膜交联良好,结构均匀致密。[结论]CMC膜对小贵妃芒果贮藏没有保鲜的作用,壳聚糖-CMC复合膜和壳聚糖膜对小贵妃芒果贮藏有防腐保鲜的作用,并且保鲜效果壳聚糖-CMC复合膜大于壳聚糖膜。[Objective]To study the effect of chitosan-CMC composite film on the storage quality of Xiaoguifei mango.[Method]Chitosan membrane,CMC membrane,and chitosan-CMC composite membrane were prepared using chitosan and carboxymethylcellulose sodium(CMC)as film-forming agents.The Xiaoguifei mangoes treated with these three types of membranes were divided into groups A,B and C,and the CK group was set.Storage at room temperature(20±2)℃,the effects of three types of membranes on the storage quality of Xiaoguifei mango were studied by measuring the disease index,decay rate,weight loss rate,acidity,soluble solids and scanning electron microscopy analysis of groups A,B,C and CK.[Result]After 20 days of storage,the disease index,decay rate and weight loss rate of Xiaoguifei mango treated with composite film were the lowest,while the acidity and soluble solids content were the highest.Scanning electron microscopy analysis revealed that the composite film had good cross-linking and a uniform and dense structure.[Conclusion]The CMC film had no preservation effect on the storage of Xiaoguifei mangoes,while chitosan-CMC composite film and chitosan film had a preservation effect on Xiaoguifei mangoes,and the preservation effect of chitosan-CMC composite film was greater than that of chitosan film.

关 键 词：芒果 壳聚糖 羧甲基纤维素钠(CMC) 贮藏 保鲜 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]