超临界流体提取法
超临界流体提取法-
方法：研究了超临界流体提取法（SFE）及水蒸气蒸馏法（SD）所得杜香挥发油的收率及组分变化，并采用GC-MS联用技术进行分析。
Methods : We compared the yield and component change of the volatile oil of Ledum palustre by supercritical-CO_2 fluid extraction ( SFE ) and by steam distillation ( SD ) respectively , and the volatile oil has been analyzed qualitatively and quantitatively by GCMS .
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阐述了天然食用色素的制备方法，包括溶剂提取法、冻结融解法、超临界流体提取法、大网络树脂吸附法、微波提取法、酶法提取、超声波提取法等。
This paper introduces ten technological ways for preparation of natural pigment . They are solvent extraction , freeze thaw method , supercritical fluid extraction , macroreticular resins adsorption , microwave assisted extraction , enzymatic extraction , ultrasonic treatment .