玉米油脱臭馏出物固体酸催化的甲酯化反应条件优化  

Esterification Treatment of Maize Germ Oil Deodorized Distillate by Solid Acid Catalysis

作　　者：杨铭铎[1,2,3] 张美杨[1,2,3] 曲彤旭[1,2,3] 王媛[1,2,3] 王耀晖 

机构地区：[1]哈尔滨商业大学中式快餐研究发展中心博士后科研基地,哈尔滨150076 [2]哈尔滨商业大学食品工程学院,哈尔滨150076 [3]黑龙江省普通高校食品科学与工程重点实验室,哈尔滨150076 [4]哈尔滨天通农业科技开发有限公司,哈尔滨150076

出　　处：《包装与食品机械》2012年第6期1-5,共5页Packaging and Food Machinery

基　　金：国家人事部留学回国人员科技活动择优资助项目(200306AD)

摘　　要：对玉米油脱臭馏出物中的脂肪酸采用强酸性阳离子交换树脂催化甲酯化反应。对树脂进行筛选、预处理、干燥,确定以干燥的干氢NKC-9强酸性树脂作为甲酯化催化剂。对反应条件进行单因素试验,确定了最佳反应工艺参数。经正交试验优化确定甲酯化反应最佳条件为:甲酯化反应温度为60℃,甲酯化反应时间为5h,醇酸比为2∶1,催化剂用量为20%。最佳条件下脂肪酸甲酯化率可达到97.8%。The article carried out a series of experiments about methyl esterification of fatty acid in deodor- izer distillate, which was catalyzed by the strongly-acidic cationic exchange resin. The resins were selected, pre- treated and dried. NKC-9 resin was chosen as the catalyst. The single factor is undertaken in order to get the optimal combination parameters. The process is optimized for the esterification of maize germ oil deodorizer dis- tillate with methanol under following conditions：methanol： MGODD is 2： 1, catalyzed by NKC-9 resin at 60℃ for 5h. The results showed that strongly-acidic cationic exchange resin had perfect effect on catalyzing methyl esterification of fatty acid in deodorizer distillate;esterification rate was up to 97.8%.

关 键 词：甲酯化 脂肪酸 强酸性阳离子交换树脂 酯化率 

分 类 号：TS229[轻工技术与工程—粮食、油脂及植物蛋白工程]