【摘要】 利用溶剂-膜法对菜籽毛油进行精炼,是一项新的油脂精炼方法。通过先采用乙醇溶剂对菜籽毛油进行萃取,然后将萃取后的溶剂再利用膜分离技术进一步分离出FFA和乙醇溶剂,从而实现菜籽毛油的脱酸。研究结果表明,在一定的压力作用下,截留分子量500的膜对FFA具有50.25%的平均截留率,而截留分子量1000的膜没有表现出任何的截留作用,说明适宜的截留分子量是影响膜分离效果的重要因素。更多还原

【Abstract】 Deacidification of crude rapeseed oil by solvent extraction-membrane separation technique was studied. Free fatty acids were extracted by alcohol from crude rapeseed oil, and separated from solvent by membrane technology. The new method is proved to be feasible in oil refining field.更多还原