Objective To study the optimum parameters of the supercritical CO2 fluid extraction of roasted Rhizoma Atractylodis Macrocephalae and roasted Fructus aurantii immaturus,and chemical constituents of extractive matters. Methods The experiment was performed with orthogonal design. Four factors were extractive pressure,temperature,extractive time and the flow rate of CO2. GC-MS was applied for analyzing. Results The optimum condition were obtained:the extractive pressure was 33 MPa,the temperature of extraction was 40 ℃,the extractive time was 60 minutes and the flow rate of CO2 was 27 L/h. The main chemical constituents was gamma-Elemene. Conclusion The method applied to obtain the extractive matters from roasted Rhizoma Atractylodis Macrocephalae and roasted Fructus aurantii immaturus was quickly and efficiently with satisfactory results. It provides foundation for exploration.

Objective To study the optimum parameters of the supercritical CO2 fluid extraction of Polyrhachis vicina Roger and chemical constituents of ant oil. Methods The experiments were designed with the uniform design. Three factors are extraction pressure, temperature and time. GC-MS was applied for analyzising. Results The optimum condition was obtained:the extraction pressure is 36 MPa, the temperature of extraction is 40 ℃ and extraction time is 50min. 45 components were identified from 60 chromatographic peaks. The main chemical constituents were (Z)-9-octadecenoicacid (48.278%), hexadecanoicacid (17.574%), (Z)-9-hexadecenoi (4.912%), cholesterol (2.957%). There are some linear paraffin in ant oil. Conclusion This method can extract the ant oil from Polyrhachis vicina Roger quickly and efficiently. This experiment provide foundation for exploitation and utilization of ant resource.

AIM: To study the application of superfine comminution in Renzhujianwei Granule. METHODS: After being pretreated, Rhizoma Altractylodis macroleplea and coix seed were crushed into ultra-fine powder by TC20 medical superfine crusher. Then the ultra-fine powder was made into the granule. RESULTS: Detected by scanning electron microscope and EDS X-ray detector, the mean diameter of the particle was ≤5 ?m; The detection of the normal distribution was 87.93%≤20 ?m and 95.08%≤20 ?m. CONCLUSION: The application of ultra-fine powder in Renzhujianwei Granule develops a new method of producing granule, that can save the pharmaceatic adjuvants and keep the effective components, and is propitious to the molding of the preparation, and also can improve the stability.