Sterilization technology optimization of Ginseng Radix et Rhizoma with microwave by orthogonal test.

Objective To optimize the sterilization technology of Ginseng Radix et Rhizoma with microwave.Methods The sterilization rate was used as the index to evaluate the technologies based on orthogonal test,in which the powder particle size of Ginseng Radix et Rhizoma,sterilization time,and microwave power were considered as three main technology factors,and the contents of ginsenosides were observed.Results The optimum condition was as follows:sterilization time 240 s,the powder particle size 10 mesh,and microwave power 6 000 W.Conclusion The new sterilization procedure is efficient and easy to operate.