Extraction Technology of Chinese-fir Heartwood by Supercritical Fluid Carbon Dioxide

Taking extraction rate as an indicator,the extraction technology of Chinese-fir heartwood by supercritical carbon dioxide treatment was studied, and the extraction rate of the SFE-CO2 method was compared to that of traditional extraction method. The results show that when extraction processing condition were:extraction pressure 30 MPa,extraction temperature 40℃,extraction time 120 m,and flow velocity 20 kg/h,the extraction rate of SFE-CO2 was 0.99%,0.20%more than that of the traditional extraction method.However,taking the cost into consideration,it is proposed that the traditional extraction is used unless there are specific requirements.

蓬莪术挥发油提取技术的研究及其化学成分分析

采用超临界CO2 流体萃取、索氏提取、水蒸汽蒸馏 3种提取技术提取蓬莪术挥发油 ,并用GC MS联用仪分析其化学成分 .实验结果表明 :超临界CO2 流体萃取法在挥发油得率、有效抗肿瘤组分、工艺流程、有机溶剂残留、挥发油外观及香气等诸多方面均明显优于索氏提取法和水蒸汽蒸馏法 。