AOT/正己烷反胶束体系酶催化合成己酸乙酯研究  

Sdudy on enzymatic synthesis of ethyl caproate in reverse micelles system of AOT/n-hexane

作　　者：唐功[1] 杨兴江[1] 任朝琴[1] 刘林[1] 戴先芝[1] 

机构地区：[1]阿坝师范高等专科学校,四川成都611741

出　　处：《粮食与油脂》2010年第11期44-47,共4页Cereals & Oils

基　　金：四川省教育厅科研基金(09ZC102)

摘　　要：该研究以脂肪酶为催化剂,在AOT/正己烷反胶束体系中催化合成己酸乙酯。此体系最佳反应条件为:反应物浓度0.15 mol/L(己酸)、乙醇与己酸摩尔比1∶1.5、加酶量4 mg、反胶束溶液10 ml、AOT浓度0.05 mol/L、反应温度40℃、缓冲溶液pH=7.5、含水量Wo为12,反应36 h后转化率变化不大,此时转化率约为82.8%;并对合成产物应用红外光谱、GC–MS方法进行表征,结果显示,合成产物为己酸乙酯。In this papert,o lipase as catalystA,OT/n–hexane reverse micellar system catalyzed estenficationt,he system optimum reacation conditions：substrate concentration is 0.15 mol/L（hexanoic acid）e,thanol and hexanoic acid molar ratio is 1∶1.5e,nzyme dosage 4 mgr,everse micelle solution 10 mlA,OT concentration of 0.05 mol/Lr,eaction temperature is 40 ℃,buffer solution pH=7.5,water content Wo 12t,he reaction time is 36 hours.then the conversion rate of about 82.8%.The synthesized product was also characterized by IR and GC–MS.The results showed that synthesized products were ethyl hexanoate,

关 键 词：反胶束 脂肪酶 己酸乙酯 

分 类 号：TS202.3[轻工技术与工程—食品科学]