壳聚糖对葡萄涂膜保鲜的应用研究  

Research on Effect of Chitosan Film Coating on Grape Storage

作　　者：王书颖[1] 陈靖宇[1] 邓靖[1] 薛琼[1] 

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007

出　　处：《农产品加工（下）》2016年第1期7-9,13,共4页Farm Products Processing

基　　金：湖南工业大学校级大学生研究性学习和创新性实验计划项目(2014049)

摘　　要：以葡萄为保鲜对象,采用涂膜法研究壳聚糖复合溶液对葡萄的保鲜效果。通过比较流延膜的力学、阻隔和透明等性能以及对葡萄的保鲜效果,确定壳聚糖、醋酸、丙三醇、山梨酸钾的最佳添加量。结果表明,壳聚糖复合膜的保鲜效果主要受p H值和壳聚糖溶解性影响;由壳聚糖添加量1.5%,醋酸添加量1%,丙三醇添加量0.5%,山梨酸钾添加量0.5%组成的壳聚糖复合膜对葡萄的保鲜效果最佳,相对于空白组延长了保鲜期5 d。In this paper, the effect of chitosan composite solution on grape freshness are studied by using the method of coating. The optimal concentration of chitosan,acetic acid,glycerol,potassium sorbate are determined by comparison of the cast film mechanical, barrier and transparency properties and the grapes of the fresh- keeping effect. The results show that：the preservative effects of chitosan composite membrane is mainly affected by p H and chitosan solubility effects;when chitosan1.5%,acetic acid 1%,glycerol 0.5%,potassium sorbate 0.5%,chitosan composite membranethe has the best effect on the preservation of grape and it prolonged grape＇s storage life for 5 days more than the normal.

关 键 词：壳聚糖 性能测试 保鲜效果 葡萄 

分 类 号：S668.4[农业科学—果树学]