摘要
研究了蚕蛹油中多不饱和脂肪酸的尿素包合分离,通过正交试验考察了尿素/脂肪酸的质量比、尿素与乙醇比、包合温度、包合时间等对多不饱和脂肪酸分离效果的影响。结果表明,适宜的尿素包合条件为:m(尿素):m(脂肪)=2:1,m(尿素):V(乙醇)=1:3.2,包合温度5℃,包合时间2 h,在上述条件下多不饱和脂肪酸得率为57.0%,含量由71.0%提高到95.3%。
The urea adduction process of polyunsaturated fatty acids （PUFAs） in silkworm oil was studied. The effects of ration of urea to fatty acid, ration of urea to ethanol, temperature and adduction time on purity and yield of PUFAs were discussed. The results showed that the optimal adduction conditions were obtained with orthogonal experiments： ration of urea to fatty acid was 2 ： 1 （m/m）, ration of urea to ethanol was 1 ： 3.2 （m/V）, adduction temperature was 5 ~C, adduction time was 2 h, and the yield of PUFAs was 57.0%, and the content of PUFAs could be raised from 71.0% to 95.3% under adduction conditions mentioned above.
出处
《食品工业》
北大核心
2013年第5期29-31,共3页
The Food Industry
基金
2011年度广西教育厅科研立项项目
项目编号:201106LX776
关键词
蚕蛹油
多不饱和脂肪酸
尿素包合
分离
silkworm oil
polyunsaturated fatty acids
urea adduction
separation
