Modified soybean lecithin was more effective than lecithin to improve the disperse and micromulsion,microemulsion of cholesterin and water was got,and it was better to be used in drug delivery system.

• 对大豆卵磷脂进行羟氯化改性,以此为表面活性剂、乙醇为助表面活性剂,对胆固醇进行微乳化实验。