响应面优化红花籽油碱异构化法制备共轭亚油酸的研究  

Optimization of preparation of conjugated linoleic acid from safflower seed oil by alkali isomerization using response surface methodology

作　　者：张红玉[1] 王淑萍 金天佑 许若男 张鑫 谷盼盼 王芳梅 王亮[1] 王志军 

机构地区：[1]新疆大学生命科学与技术学院,乌鲁木齐830046 [2]中粮塔原红花(新疆)有限公司,新疆塔城834600

出　　处：《中国油脂》2018年第1期99-102,125,共5页China Oils and Fats

摘　　要：以新疆优质红花籽油为原料,通过碱异构化法制备共轭亚油酸(CLA)。采用单因素试验研究了异构化过程中反应温度、反应时间、PEG-400用量、Fe(OH)_3用量对CLA转化率的影响,同时采用响应面法对制备工艺进行优化。结果表明:在红花籽油质量为20 g前提下,红花籽油碱异构化法制备共轭亚油酸的最佳工艺条件为以PEG-400为溶剂、Fe(OH)_3为催化剂、反应温度178℃、反应时间2.7 h、PEG-400用量265 m L、Fe(OH)_3用量6 g,在此条件下,CLA转化率为96.54%。With Xinjiang high quality safflower seed oil as raw material, conjugated linoleic acid （CLA） was prepared by alkali isomerization method. The effects of reaction temperature, reaction time, dosage of PEG -400 and dosage of Fe（OH） 3 on the conversion rate of CLA were studied by single factor experi- ment, at the same time the response surface methodology was used to optimize the preparation process. The results showed that when the mass of safflower seed oil was 20 g, the optimal preparation conditions of CLA from safflower seed oil by alkali isomerization were obtained as follows： using PEG -400 as solvent and Fe（OH） 3as catalyst, reaction temperature 178 ℃, reaction time 2.7 h, dosage of PEG - 400 265 mL and dosage of Fe（OH）3 6 g. Under these conditions, the conversion rate of CLA was 96.54%

关 键 词：红花籽油 共轭亚油酸 碱异构化法 响应面法 

分 类 号：TS225[轻工技术与工程—粮食、油脂及植物蛋白工程] TQ645.6[轻工技术与工程—食品科学与工程]