Method was introduced to refine phosphatidylcholine from rude soybean lecithin using alcohol and remove impurity by refrigerating crystal in the condition of low temperature.

• 该文研究了在低温条件下,用乙醇作为溶剂,通过冷冻结晶去杂,从粗制大豆磷脂中精制磷脂酰胆碱的方法。