生物加工过程2017，Vol.15Issue(1)：8-15,8.DOI:10.3969/j.issn.1672-3678.2017.01.002
负载Ag＋氧化铝陶瓷膜的制备及其对角鲨烯、花生四烯酸和二十碳五烯酸的吸附特性
Preparation of Ag+-SACM for the adsorption of squalene, arachidonic acid and eicosapentaenoic acid
摘要
Abstract
In this work,alumina ceramic membrane(Ag+⁃SACM) was prepared with porous alumina as support material,by means of silanization modification and soaked with AgNO3 solution.The structure and properties of the modified Ag+⁃SACM was then characterized. Furthermore,the adsorption of Ag+⁃SACM toward squalene,arachidonic acid(ARA) and eicosapentaenoic acid(EPA) were assessed.The adsorption process of Ag+⁃SACM toward these three compounds has two stages.In the first stage,the adsorption rate was faster and the adsorption behaviors follow the Langmuir isotherm model. The results showed that the equilibrium adsorption capacity ( below 0 ℃) of Ag+⁃SACM toward squalene, ARA and EPA was 369,322�58,and 990�1 μmol/m2,respectively.Because the number of unsaturated double bonds in EPA is higher than that in ARA and without methyl groups substitution,the loading capacity of EPA is higher than that of ARA and squalene.Finally,the EPA on Ag+⁃SACM was eluted with butyl acetate. Under the optimal conditions of 70 ℃ for 75 min,the elution rate of EPA reached 90�1%.关键词
负载Ag+氧化铝陶瓷膜/络合反应/吸附/角鲨烯/花生四烯酸/EPAKey words
Ag+-SACM/complex reaction/adsorption/squalene/arachidonic acid/eicosapentaenoic acid分类
化学化工引用本文复制引用
于俊雅,张晨曦,倪芳,姚忠,仲兆祥,孙芸..负载Ag＋氧化铝陶瓷膜的制备及其对角鲨烯、花生四烯酸和二十碳五烯酸的吸附特性[J].生物加工过程,2017,15(1):8-15,8.基金项目
江苏省重点研发项目 （）
