龙眼多糖的冷电弧脱色工艺研究  

Study on decolorization technology of polysaccharides from Longan by non-thermal plasma

作　　者：郭刚[1] 王中来[1] 程冬洋[1] 李富锋[1] 王丽香[1] 陈雅静[1] 

机构地区：[1]福建省光催化重点实验室,福州大学生物科学与工程学院,福建福州350002

出　　处：《食品工业科技》2011年第4期220-224,共5页Science and Technology of Food Industry

基　　金：福建省光催化重点实验室开放课题(K-081034);国家大学生创新性实验计划项目(091038619)

摘　　要：设计制作"流面型"冷电弧反应器,并用于龙眼多糖的脱色研究。在单因素实验的基础上,运用二次回归正交旋转组合设计,建立回归模型方程确定最佳工艺条件。结果表明:在流量30.0mL/min、电压21.0kV和处理时间20.6min的条件下,脱色率和糖保留率分别达到80.5%和87.6%,效果最好。所得回归方程高度显著,拟合情况良好。Decolorization technology of polysaccharides from Longan was studied by use of non-thermal plasma reactor with liquid-film flow.The optimum decolorizing conditions were determined by the method of quadratic orthogonal rotation combination design, based on the single factor experiments.The results showed that the rate of decolorization and the retention rate of polysaccharides reached 80.5% and 87.6%, respectively. Under the conditions that the flowrate of polysaccharides solutions was 30.0mL/min,the voltage of electrodes 21.0kV,and the processing time 20.6min.

关 键 词：龙眼 多糖 冷电弧 二次回归正交旋转组合设计 脱色 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]