【摘要】 目的 :确定川芎、高良姜、片姜黄和羌活的挥发油提取最佳条件。方法 :用水蒸汽蒸馏法和超临界流体萃取的方法提取挥发油。结果 :(1)水蒸汽蒸馏法提取挥发油的最佳条件确定为 :川芎 :浸泡时间 12h ,粉末粒度细 ,提取时间 3h ,加水比 1∶10 ;高良姜 :浸泡时间 0h ,粉末粒度粗 ,提取时间 3h ,加水比 1∶10 ;片姜黄 :浸泡时间 2 4h ,粉末粒度中 ,提取时间1.5h ,加水比 1∶5 ;羌活 :浸泡时间 0h ,粉末粒度粗 ,提取时间 3h ,加水比 1∶10。 (2 )超临界流体萃取法提取挥发油的最佳条件确定为 :川芎 :温度为 6 0℃ ,粉末粒度细 ,压力 2 5MPa ,提取时间 1.5h ;高良姜 :温度为 6 0℃ ,粉末粒度中 ,压力2 5MPa ,提取时间 0 .5h ;片姜黄 :温度为 6 0℃ ,粉末粒度细 ,压力 2 0MPa ,时间 1h ;羌活 :温度为 6 0℃ ,粉末粒度细 ,压力2 5MPa ,提取时间 1h。结论 :超临界流体萃取法要优于水蒸汽蒸馏法。更多还原

【Abstract】 AIM: To find the optimum extraction of volatile oil. METHOD: To extract the volatile oil by steam distillation or supercritical fluid extraction (SFE). RESULT: (1) The optimum extraction of volatile oil extracting by steam distillation is: Ligustricum Chuanxiong Hort.:Soak time 12 hrs, thin powder, extract time 3hrs, and to add water with 1∶10; Alpinia Officinarum Hance: Soak time 0 hr, thick powder, extract time 3 hrs, and to add water with 1∶10; Curcuma Wenyujin Y.H. chen C. Ling: Soak time 24hrs, mild powder, extract time 1.5hrs, and to add water with 1∶5; Notopterygium incisum Ting: Soak time 0 hr, thick powder, extract time 3 hrs, and to add water with 1∶10. (2) The best condition of volatile oil extracting by SFE is: Ligustricum Chuanxiong Hort.: 60℃, thin powder, press 25MPa, extract time 1.5hrs; Alpinia Officinarum Hance: 60℃, mild powder, press 25MPa, extract time 0.5hr; Curcuma Wenyujin Y.H. chen C. Ling: 60℃, thin powder, press 20MPa, extract time 1 hr; Notopterygium incisum Ting: 60℃, thin powder, press 25MPa, extract time 1hr. CONCLUSION: Supercritical fluid extraction (SFE) is superior to steam distillation.更多还原