摘要
利用分子蒸馏小试装置研究了分离较高纯度棕榈油甘油二酯的生产工艺。利用Novozym 435脂肪酶在无溶剂体系下甘油解棕榈油,制备甘油二酯含量大于50%的酰基甘油混合物,采用两级分子蒸馏进行精制,并研究了二级分子蒸馏温度、刮膜转速、进料速率对甘油二酯纯度的影响。结果表明:在二级分子蒸馏真空度0.1 Pa、蒸馏温度230℃、刮膜转速300 r/min、进料速率4 m L/min的条件下,得到了纯度达到80%左右、得率达到50%左右的棕榈油甘油二酯产品。
The production process of high purity palm oil diacylglyeerol was studied by molecular distillation. Novozym 435 was used in the glycerolysis of palm oil in solventl free system to produce acylglycer- ol mixture with diacylglycerol content higher than 50%. The acylglycerol mixture was refined by two - step molecular distillation, and the effects of secondary molecular distillation temperature, rotation speed and feed speed on the purity of diacylglycerol were studied. The results showed that the purity of diacylg- lycerol in the product reached about 80%, and the yield reached about 50% under the conditions of see- ondary molecular distillation vacuum degree 0.1 Pa, distillation temperature 230 ℃, rotation speed 300 r/min and feed speed 4 mL/min.
作者
马靖轩
马传国
司天雷
王英丹
李利君
MA Jingxuan1, MA Chuanguo1,2,3, SI Tianlei1,2,3 ,WANG Yingdan1, LI Lijun1,2,3(1. College of Food Science and Technology, Henan University of Technology ,Zhengzhou 450001, China; 2. National Engineering Laboratory for Wheat and Corn Further Processing, Zhengzhou 450001, China; 3. Grain and Oil Food Engineering Technology Research Center, State Administration of Grain, Zhengzhou 450001, Chin)
出处
《中国油脂》
CAS
CSCD
北大核心
2018年第3期6-9,共4页
China Oils and Fats
基金
"十三五"国家重点研发计划子课题(2016YFD0401404)
河南省科技厅自然科学项目(152100210265)
关键词
分子蒸馏
甘油二酯
棕榈油
精制
纯度
molecular distillation
diacylglycerol
palm oil
refining
purity
