溶剂脲包法从脱溴馏出物中提取生育酚

Research of the solvent urea package for extracted tocopherol from debromination accompaniment

为了从脱溴馏出物中提取天然生育酚,采用溶剂脲包法包络天然生育酚,与脂肪酸及其甘油酯分开。确定了提取天然生育酚的方法、溶剂脲包法的工艺流程,用单因素实验确定了溶剂脲包反应的条件。得出结论:脲包反应的最佳条件为:溶剂为95%乙醇、48h、反应的冷却温度为10℃,包络物为分析纯尿素与农用尿素都行,但农用尿素更经济。

In order to extracted natural tocopherols from the debromination accompaniment, the method of solvent urea package were used to separate natural tocopherols and fatty acid and its glycedde. This article identified the method of extraction natural tocopherols and the process of solvent urea package. The reaction conditions were determined with single factor experiments. The best urea reaction conditions are as follows： 95% ethanol solvent, packager is pure urea, the urea and debromination accompaniment as 4：1, 95% alcohol （mL）/pure urea（g） 2：1.