壳聚糖膜在黄瓜保鲜中的应用  

Application of chitosan membrane on preservation of cucumbers

作　　者：万惠萍[1] 叶淑红[2] 陈丽[2] 曹方[2] 于榕[3] 穆野[2] 钟耀广[2] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034 [2]大连工业大学生物与食品工程学院,辽宁大连116034 [3]辽宁大学生命科学学院,辽宁沈阳110036

出　　处：《大连工业大学学报》2008年第2期110-112,共3页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅科学研究资助项目(05L080,20060178)

摘　　要：制备了壳聚糖复合膜,并应用于黄瓜保鲜。在保鲜实验中,测定了黄瓜的失水率、叶绿素、维生素C、硬度等指标的变化。结果表明,使用涂膜保鲜后,12 d时黄瓜的失水率为7.5%、维生素C减少45.4 mg/kg、叶绿素减少5 mg/kg,黄瓜的硬度保持较好。利用壳聚糖复合膜的保鲜效果好于通常的保鲜膜保鲜效果。Complex chitosan membrane was prepared and its application on the preservation of cucum- bers was studied. The results showed that after preservation with chitosan membrane for 12 days, the dehydrating rate was 7.5%, Vitamin C decreased in 45.4 mg/kg, chlorophyll decreased in 5 mg/kg, the hardness was well kept. The composite chitosan membrane showed better preservation results than that of normal film.

关 键 词：壳聚糖 复合膜 保鲜 黄瓜 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]