大孔吸附树脂DM301分离小叶榕叶总黄酮的动力学研究  

Study on adsorption kinetics of separation process of flavonoids from the Ficus microcarpa L.f by macroporous resin DM301

作　　者：刘力恒[1,2] 王立升[1] 冯丹丹[1] 陈冠晓[1] 刘雄民[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]玉林师范学院化学与生物系,广西玉林537000

出　　处：《食品工业科技》2009年第8期91-93,共3页Science and Technology of Food Industry

基　　金：广西回国基金资助项目(桂科回0731001);广西教育厅资助项目(200710MS050);广西科技攻关资助项目(桂科攻0815005-1-3);南宁市科技攻关资助项目(200801034C);2008年广西研究生创新基金项目

摘　　要：以广西小叶榕为原材料,采用DM301大孔吸附树脂分离纯化小叶榕叶提取液中的总黄酮,研究了DM301树脂吸附分离总黄酮的动力学,对其速率控制步骤进行了系统的研究,实验结果表明,DM301树脂吸附小叶榕叶总黄酮的整个过程符合"未反应核收缩模型",1-3(1-X)2/3+2(1-X)对吸附时间t具有良好的线性关系,证明黄酮通过吸附层的扩散决定了整个吸附过程的速率。The experiments were carried out to study the separation and purification of fiavonoids from Ficus microcarpa L.f with macroporous resin D301, and the absorption dynamics about the ratio control steps was investigated.The results showed that the whole absorption process was in line with the ＂no nuclear contraction reaction model＂, had a good linear relationship between 1 -3（ 1 -X）2/3 ＋2（ 1 -X）and the adsorption time, and it proved that the diffusion of the flavonoids going through absorption layer was the controlling speed step.

关 键 词：总黄酮 大孔树脂 动力学 孔内扩散 

分 类 号：TS201.1[轻工技术与工程—食品科学]