酒石酸改性壳聚糖涂膜保鲜剂的制备与应用研究  

Preparation and Application of Tartaric Acid Modified Chitosan Coating Preservative

作　　者：腾维 何彬语 田亚龙 安斌[1] 王桂雪[1] 杨富婧 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070

出　　处：《广州化工》2016年第17期103-105,共3页GuangZhou Chemical Industry

基　　金：兰州交通大学大学生创新项目

摘　　要：涂膜保鲜是果蔬贮藏保鲜的一种重要方式。本文通过酒石酸对壳聚糖进行改性、复配,得到一种成膜性良好的壳聚糖水性涂膜保鲜剂。以草莓为保鲜对象,通过测定涂膜组和未涂膜组草莓在储藏期间的失重率、Vc含量、总酸含量的变化,研究了该保鲜剂的保鲜效果。结果表明:由质量分数为1.2%酒石酸和质量分数为1.5%壳聚糖改性复配的保鲜剂具有良好的保鲜效果。Edible coatings and films provide an important alternative for extending the postharvest life of fresh fruits and vegetables. A tartaric acid modified chitosan composite solution was prepared,which exhibited good ability on the formation of coating film. The preservative effect of this chitosan composite solution was studied on two groups of storage strawberries,i. e. coated ones and uncoated controls,by measuring and comparing the weight loss rate,ascorbic acid（ Vc） content,and titratable acidity changes. The results showed that the composite solution containing of 1. 2% tartaric acid and 1. 5% chitosan had good fresh-keeping effect on strawberry.

关 键 词：壳聚糖 酒石酸 涂膜 保鲜 

分 类 号：TS205.9[轻工技术与工程—食品科学]