层层自组装可食用保鲜膜的性能探究  

Performance of Edible Preservative Film Based on Layer-by-layer Self-assembly Technique

作　　者：刘雪帆 葛宇启 董世香 葛丽芹[1] 章建浩[3] LIU Xue-fan GE Yu-qi DONG Shi-xiang GE Li-qin ZHANG Jian-hao(Southeast University, Nanjing 210096, China Siyang Middle School of Jiangsu Province, Suqian 223700, China Nanjing Agricultural University, Nanjing 210095, China)

机构地区：[1]东南大学,南京21009 [2]江苏省泗阳中学,宿迁223700 [3]南京农业大学,南京210095

出　　处：《包装工程》2017年第9期13-18,共6页Packaging Engineering

基　　金："十二五"国家科技支撑计划子课题(2015BAD16B05-5);江苏省农业科技自主创新资金(CX(15)1049)

摘　　要：目的对可食用保鲜膜的性能进行拓展。方法采用层层自组装静电沉积法制备可食用水果保鲜膜,并对膜进行表征,探究膜的微观结构、透明度、亲疏水性、自修复性等。结果该可食用膜结构致密,具有较好的透明度,透光率在90%以上;具有较好的疏水性,接触角θ约为102°;能实现形貌和力学性能上的修复,修复前后的膜都能负载200 g的砝码,同时都无法负载300 g的砝码。结论可食用保鲜膜的这些性能提高了该可食用膜的保鲜效果。The work aims to extend the properties of edible fresh-keeping film.Edible fruit fresh-keeping film was prepared with the layer-by-layer self-assembly electrostatic deposition technology.Meanwhile, the microstructure, transparency, hydrophilic-hydrophobic property and self-healing ability of the edible film were characterized.The edible film was of dense microstructure and high transparency, with the transmittance above 90%; the film was of high hydrophobicity and the contact angle θ was about 102°; the edible film could self-heal morphologically and mechanically and the edible film and self-healed film could hold the weight of 200 g and could not hold the weight of 300 g.It is concluded that these properties of edible fresh-keeping film have improved the fresh-keeping effect of the edible film.

关 键 词：可食用膜 层层自组装 自修复 

分 类 号：TS206.4[轻工技术与工程—食品科学]