Diosgenin is one of the most important materials in medicine and chemical fields. It is one kind of basic materials and mediums to synthesize hormone medicines. Diosgenin is mainly from dioscorea zingiberensis, and China is abundant in the resource of dioscorea zingiberensis, so it is very significant to extract diosgenin from dioscorea zingiberensis , but at present, a great deal of waste residue and waste liquid from the process of producing diosgenin has a badly effect on environment, so it is also very ...