木薯淀粉基十二烷基糖苷的制备及其表面性能  

Preparation and surface properties of cassava starch-based dodecylycoside

作　　者：邓加林[1] 尚小琴[1,2] 刘汝锋[1] 刘鹏[1,2] 武伦福[3] 李泽华[1] 伍密 

机构地区：[1]广州大学化学化工学院,广东广州510006 [2]广州大学精细化工研究所,广东广州510006 [3]广州生产力促进中心,广东广州510091

出　　处：《化工进展》2014年第7期1880-1883,共4页Chemical Industry and Engineering Progress

基　　金：广州市科技计划项目(2013J4300043)

摘　　要：以木薯淀粉为糖源,在浓硫酸的催化作用下采用转苷法制备木薯淀粉基十二烷基糖苷(APG),考察淀粉与乙二醇反应过程中反应体系糖浓度的变化规律,探讨反应温度、反应时间、催化剂用量、醇糖比等诸因素对十二烷基糖苷制备反应的影响,研究产品的表面性能。实验结果显示,在乙二醇糖苷的反应过程中,还原糖的浓度变化呈现先增大后降低的趋势;十二烷基糖苷的制备最佳反应条件为反应温度115℃,反应时间4h,催化剂用量0.8%,醇糖比为3.5∶1;制备的淀粉基十二烷基糖苷的表面张力为25.9 mN/m,临界胶束浓度(cmc)约为0.05%。The dodecylycoside（APG）was synthesized by indirect synthesis method. The concentration diversification of the reducing sugar in the process of glycol polyglucoside preparation and the effects of reaction temperature,reaction time,catalyst dosage and radio of alcohol/suga on the the synthesis of the dodecylycoside were investigated. Meanwhile the surface properties of sample were determined. The results show that the concentration of the reducing sugar reaction is increased at first and then decreased in the process of glycol polyglucoside preparation,and the optimum reaction conditions for synthesizing the dodecylycoside are explained as follows：reaction temperature 115℃,reaction time 4h,catalyst dosage 0.8%,alcohol/starch ratio 3.5∶1. The surface tension of the dodecylycoside is 25.9 mN/m,and the critical micelle concentration（cmc）is 0.05%.

关 键 词：木薯淀粉 乙二醇基糖苷 十二烷基糖苷 转苷法 表面性能 

分 类 号：TQ423.2[化学工程] TS235.2[轻工技术与工程—粮食、油脂及植物蛋白工程]