摘要
采用尿素络合处理法预浓缩植物油脱臭馏份中的维生素E,用单因素平行试验对络合处理过程中醇、水分含量、回流时间、冷析温度、冷析时间、原料的比例等影响因素进行考察,并用高效液相色谱对样品进行分析,得出最佳条件为,以95％的乙醇为溶剂、回流反应1 h、在0℃下冷析5 h、脱臭馏份:尿素:醇为1:4:6,在此条件下将生育酚浓度由1.50％提高至5.04％。
The nature Vitamin E of oil deodorizer was pre-concentrated using ureaas inclusion compond.Single-factor parallel design has been used in this experiment, some factors such as the sort of alcohol,the content of water ,refluence time, crystallizing time,crystallizing temperature,reactant proportion have been reviewed,and the Vitamin E has been determined by HPLC. Through this experiment,the best inclusion conditions have been got: 95% ethanol as solvent to dissolve urea and oil deodorizer ,refluxing 1 h at 75 ℃ and then the solution was kept at 0 ℃ for 5 h. Through urea inclusion, Vitamin E's concentration could increased from 1.50% to 5.04%.
出处
《河北化工》
2004年第5期29-31,40,共4页
Hebei Chemical Industry
基金
湖南省科技厅资助项目
