碱法水解油菜籽油制备脂肪酸  

Research on the Production of the Fatty Acid from Rapeseed Oil with Alkali Hydrolysis

作　　者：罗庆华[1] 林俊清[1] 张习敏[1] 

机构地区：[1]贵州师范大学生命科学学院,贵州贵阳550001

出　　处：《安徽农业科学》2011年第11期6515-6516,共2页Journal of Anhui Agricultural Sciences

基　　金：贵州省科技计划项目(黔科合NY[2006]3031号);贵州省科技创新人才团队建设项目(黔科合人才团队[2009]4007号)

摘　　要：[目的]研究碱法水解植物油脂的游离脂肪酸得率,为生物柴油的工业化生产提供科学数据。[方法]以油菜籽油为试验材料,研究碱法制备脂肪酸过程中NaOH浓度、反应时间和工艺条件对油菜籽油脂水解的效果。[结果]增加NaOH浓度和延长反应时间均可以提高水解率。最佳反应条件为两步法水解:先用23.5%NaOH水解3 h、然后用11.75%NaOH水解2 h。此条件下油菜籽油的水解率可达99.64%。[结论]采用两步法碱法分解油菜籽油效果理想。[Objective] The scientific data of the industrial production of biological diesel was provided through the research on the efficiency of the fatty acid isolated from plant oil with the method of alkali hydrolysis.[Method] The effect of the concentration of NaOH,reaction time and processing technology on the hydrolysis of rapeseed oil in the production of the fatty acid isolated from plant oil with the method of alkali hydrolysis was experimented.[Results] The result showed that hydrolysis rate of rapeseed oil could be raised with the concentration-increasing of NaOH and the reaction time-prolonging.The optimal measure of it was two-step hydrolysis method.The first step was the raw material was hydrolyzed by 23.5% NaOH for 3 hours,and then,by 11.75% NaOH for 2 hours,under which measure,the hydrolysis rate reached at 99.64%.[Conclusion] The idea efficiency of the fatty acid isolated from rapeseed oil was two-step hydrolysis method.

关 键 词：碱法水解 油菜籽油 脂肪酸 

分 类 号：S37[农业科学—农产品加工]