葵花油碱异构化法制备共轭亚油酸研究  

Study on preparation of conjugated linoleic acid by alkali isomerization of sunflower oil

作　　者：张绍绍 张慧 李昊昊 张敏 安超 李琪 ZHANG Shao-shao;ZHANG Hui;LI Hao-hao;ZHANG Min;AN Chao;LI Qi(College of Chemistry and Chemical Engineering,Qingdao 266071)

机构地区：[1]青岛大学化学化工学院

出　　处：《中国食品添加剂》2019年第9期100-105,共6页China Food Additives

摘　　要：以优质葵花油为原料,采用无毒无公害的1,2-丙二醇为溶剂,用碱异构化法制备共轭亚油酸。实验研究了加碱量、反应温度、反应时间、溶剂用量对共轭亚油酸转化率的影响,采用正交试验法得出其最佳实验条件。结果表明,各因素对共轭亚油酸转化率影响大小的顺序依次为:反应温度(B)>加碱量(A)>溶剂量(D)>反应时间(C),即油碱比为1.6,反应温度为180℃,反应时间为2h,溶油比为2时,葵花由碱异构化法制备共轭亚油酸的转化率最高,可达到94.65%。In this study,conjugated linoleic acid was prepared by alkali isomerization with high quality sunflower oil as raw material and 1,2-propanediol as solvent.The effects of alkali addition,reaction temperature,reaction time and solvent dosage on the conversion of conjugated linoleic acid were studied.The optimum experimental conditions were obtained by orthogonal experiment.The results showed that the order of the influence of each factor on the conversion of conjugated linoleic acid was as follows:reaction temperature(B)>alkali dosage(A)>solution dose(D)>reaction time(C),when the ratio of oil to alkali is 1.6,the reaction temperature is 180℃,the reaction time is 2 hour and the ratio of dissolved oil is 2,the conversion of conjugated linoleic acid prepared by alkali isomerization of sunflower is the highest,which can reach 94.65%.

关 键 词：共轭亚油酸 碱异构化法 葵花油 正交试验法 

分 类 号：TS202.1[轻工技术与工程—食品科学]