大孔离子交换树脂对大豆糖蜜脱色效果的研究  

Decoloration effect of macroporous ion exchange resin on soybean molasses

作　　者：田原[1] 刘玉兰[1] 彭团儿[1] 班金[1] 

机构地区：[1]河南工业大学粮油食品学院,郑州450052

出　　处：《中国油脂》2009年第4期42-46,共5页China Oils and Fats

基　　金：河南省农业科技成果转化项目(062201000002)

摘　　要：选取6种对大豆糖蜜具有较好脱色能力的离子交换树脂LS-30、LS-21、717、LS-12、LS-41、732,通过静态吸附实验,确定用大孔离子交换树脂阴离子树脂LS-21和阳离子树脂LS-12组成混床树脂,对大豆糖蜜粗糖液进行最佳脱色条件的研究。结果表明:最佳脱色条件为阴阳离子树脂混合比例2∶1,上柱大豆糖蜜粗糖液pH 5,流速1.5 BV/h;最佳解吸条件为NaOH-乙醇水溶液(10%NaOH与无水乙醇体积比1∶1)作LS-21解吸剂,解吸率达到95.23%;LS-21和LS-12组成的混床树脂在使用的5个周期内,脱色率和解吸率都能达到90%以上。The effects of six types of ion exchange resin （ LS - 30, LS - 21 on the decoloration of soybean molasses were studied. The static adsorption macroporous ion exchange resin of LS -21 and LS -12 formed mixed - ,717,LS - 12,LS -41,732） experiment results showed that bed represented the better de coloration ability. The dynamic adsorption experiment of mixed - resin of LS - 21 and LS - 12 showed that the optimal decoloration conditions were the proportion of anion - cation resin 2 ： 1, pH 5 and flow rate 1.5 BV/h. The optimal conditions of desorption were that the NaOH - ethanol solution （ volume ratio of 10% NaOH solution to ethanol absolute 1 ： 1 ）was the best eluent for LS -21 resin,and the desorption rate reached 95.23%. For resin LS -12 and LS -21 used in the five periods,both the indexes of deeoloration and desorption were above 90%.

关 键 词：大豆糖蜜 大孔离子交换树脂 脱色 

分 类 号：TS213.2[轻工技术与工程—粮食、油脂及植物蛋白工程]