超临界CO_2萃取温莪术粉体挥发油收率的比较

Comparison of essential oil extracting rate for Curcuma Wenyujin

目的比较过50与过325目筛温莪术的粉体采用CO2超临界萃取法提取的挥发油收率。方法温莪术洗净、切片,50℃烘干,于-30℃低温下用HFM-6超微粉碎振动磨,过50目筛与325目筛;生物显微镜观察其细胞壁破碎情况;JL-1178干法激光粒度仪检测其粒径;HA121-50-01超临界萃取装置实施超临界CO2萃取挥发油。结果过50目筛后的温莪术平均粒径为90.65μm,细胞壁未破,过325目筛的平均粒径为37.27μm,细胞壁已破;过50目筛和过325目筛的温莪术的平均挥发油收率分别为3.69%和4.05%。结论过325目筛的温莪术的挥发油平均收率较比过50目筛的收率高0.36%。

OBJECTIVE To compare the extracting rate between 50 mesh and 325 mesh powder of Curcuma wenyujin Y. H. Chen et C. Ling by the supercritieal CO： extraction process（SFE）. METHODS Curcuma wenyujin Y. H. Chen et C. Ling was washed,slied, and dried at 50℃ , and then were comminuted with the HFM - 6 vibrating mill type at - 30℃ to be 50 and 325 mesh powder. The brittle powders were observed with biological microscope. The essential oil was distilled with the HA121 -50 -01 supercritical CO2 extract process equipment. RESULTS The extracting rate of 50 mesh powder （ R = 90. 65 μm） and 325 mesh powder （ R = 37. 27 μm） were 3.69% and 4. 05% , respectively. CONCLUSION The extracting rate of 325 mesh powder was 0. 36% higher than that of 50 mesh powder.