2.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.
4.Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation, extraction distillation, absorptive process and membrane separation.
7.A new method of processing candied jujube,except washing process and detaching nucleus process the three step are vacuum critical cryodrying,vacuum infusing sugar and vacuum dehydration in sequence.