响应面法优化大豆油脂肪酸乙酯合成工艺  

Optimal synthesis of ethyl ester of soybean oil using response surface method

作　　者：王利宾[1,2] 李文林[1] 黄庆德[1] 杨湄[1] 刘昌盛[1] 黄凤洪[1] 

机构地区：[1]中国农业科学院油料作物研究所,湖北武汉430062 [2]华中农业大学食品科技学院,湖北武汉430070

出　　处：《中国油料作物学报》2010年第1期119-123,127,共6页Chinese Journal of Oil Crop Sciences

基　　金：国家863计划重点项目(2007AA100703);湖北省自然科学基金资助项目(2007ABA321);中国农业科学院油料作物研究所所长基金(2009-01)

摘　　要：以大豆油为原料,KOH作催化剂,通过大豆油与乙醇的酯交换反应合成了大豆油脂肪酸乙酯。应用响应曲面分析法中的Box-behnken模型对影响大豆油脂肪酸乙酯转化率的四个主要因素(催化剂用量、醇油摩尔比、反应温度、反应时间)进行了优化。研究表明大豆油脂肪酸乙酯的最佳合成工艺条件为:KOH用量1.3%,醇油比8.3∶1,反应温度74.8℃,反应时间130min。在此条件下,酯转化率达98.93%。Ethyl ester of soybean oil was prepared through transesterification of soybean oil and ethanol catalyzed by KOH.The factors of catalyst amount,methanol to oil molar ratio,reaction temperature,reaction time on the conversion of ethyl ester of soybean oil were optimized under Box-Behnken mode of response surface method （RSM）. The result showed that optimum reaction conditions were 1.3% KOH with 8.3∶1 methanol to oil molar ratio at 74.8℃ for 130 minutes.The conversion rate of soybean oil was 98.93% in this condition.

关 键 词：大豆油 乙醇 脂肪酸乙酯 响应曲面法 

分 类 号：TS201.22[轻工技术与工程—食品科学]