Cordyceps is a complex of the fungi parasitizing in the insects, which is a funmous traditional Chinese drug. Many Cordyceps have important values in the medicine and are used for long-term. It would be worth to be utilized. The hyphal bodies of Cordyceps have many activity compositions, which have extensive pharmaco-actions. Along with the fast development in the modern science, especial in the biotechnology, the fungi of the Cordyceps becomes the focal point in the research and development of the news medicine, duing to the continuing discovers of the mankind to the news species of Cordyceps and news activity compositions and ites pharmaco-actions of Cordyceps we known and the thorough developed of the research to the biological characterist and transmissibility of the fungi belonging to Cordyceps.This promotes the application study of the metabolite of Cordyceps mycelium, implusing attention extent of all mans. The requirement to the Cordyceps fastly increase. In recently, the thoroughly application studys was been accelerating duing to fastly decreasing of the wilding yields of Cordyceps. Nows the principle research includes artificial mycelium and thorough development of the effective content of Cordyceps.This study focus on the diversity of the chief content, the demanding of the noruishment in the growing, the abstraction and primary isolation of the poryose about the four kinds of Cordyceps(SD-801, CS-4, MC, BC).We measured the content of the chief component of the four kinds and analyzed their co-relation, to compare the diversity and perspective of the development.The study about the demand of the nourishment includes natural nutritive material, various carbon sources and nitrogen sources. We could know the atate of the primary and secondary fermentation from the condition of the mycelium growing in the solid cultivation, providing the fundament in the artificial fermentation of the development of the Cordyceps.In the process of the study in the extration and composition of the polycose, we first formulate the extraction of the polycose, then sure the composition of the polycose, to prepare the further study.By all experiment, we know the contrast of the content and the property of the four Cordyceps, the optimization nutrition requirment to the different cultivation demand, the composition of the polycose through primary isolation. That could conduce to the further development. |