L-赖氨酸在乳化液膜中的萃取行为  

Extraction behaviors of L-lysine in liquid emulsion membrane

作　　者：张剑[1] 杨新妮[1] 陶托炎[1] 高冰[1] 

机构地区：[1]武汉工业学院化学与环境工程学院,湖北武汉430023

出　　处：《中国酿造》2012年第8期137-139,共3页China Brewing

基　　金：国家科技部重点农转资金项目(2010D10070666);湖北省教育厅重点科研项目(D20121806)

摘　　要：研究了以二(2-乙基己基)磷酸酯为迁移载体,环己烷为溶剂,Span 80为液膜增强剂,不同氢离子浓度为内外水相传质推动力,构成的液膜体系对L-赖氨酸的萃取行为。建立了以Fe2+为示踪的分光光度法测定液膜破损率方法。探讨了L-赖氨酸在液膜体系中的迁移机理。Extraction behaviors of L-lysine by liquid emulsion membrane （LEM） was conducted by utilizing the difference of H~ concentration between the external and internal phase as driving force, di （2-Ethylhexyl） phosphoric acid （D2EHPA） as transferring carriers, hexamethylene as solvent, span 80 as intensifier of LEM and L-lysine as the model solutes. The determination method for cracking yield for LEM was established by spectrophotometer using Fe2＋ as tracer. The transferring mechanism of L-lysine in LEM was discussed.

关 键 词：乳化液膜 L-赖氨酸 萃取行为 破损率 迁移机理 

分 类 号：Q517[生物学—生物化学] TQ028.7[化学工程]