METHOD Sphingomyelin was prepared through the process of separating erythrocyte from blood,erythrocytolysis,dehydration,dry,et al,and then hydrolyzed to ceramide by phospholipase C.

• 方法分离猪血细胞,用溶血,脱水,干燥等方法提取鞘磷脂,并用磷脂酶C降解鞘磷脂成神经酰胺。