摘要
[目的]研究水蒸气蒸馏法(SD)和超临界CO2萃取法(SFE-CO2)提取羌活挥发油的工艺条件。[方法]采用超临界萃取和水蒸气蒸馏法提取,通过正交试验,考察最佳提取工艺。[结果]结果表明,水蒸气蒸馏最佳工艺条件是:加水量12倍、回流时间8 h、粒度为粗粉,提取率为1.094%;超临界萃取最佳条件是:压力20 MPa、温度40℃、时间4 h,萃取率为7.76%,为前者的7.1倍。[结论]超临界萃取法工艺优于水蒸气蒸馏法。
[ Objective] The research aimed to study the technique of extracting the volatile oils from Notopterygium incisum Ting ex H. T. Chang by supercritical carbon dioxide（ SFE-CO2 ）and steam distillation（SD）. [ Method] The orthogonal experiments were used to choose the optimal conditions, and the SFE-CO2 and SD were used. [ Result] The results indicated that the optimal conditions of SD were 12 times of water ,time of 8 hours and graininess coarse, the yield of the volatile oils was 1. 094% ;SFE-CO2 were pressure of 20 MPa, temperature of 40 ℃ and time of 4 hours,the yield was 7.76% ,which was 7.1 times of SD. [ Conclusion] The extraction technique by SFE-CO2 is better than SD.
出处
《安徽农业科学》
CAS
北大核心
2008年第35期15539-15540,共2页
Journal of Anhui Agricultural Sciences
基金
西南交通大学青年教师科研起步项目资助(2007Q033)
关键词
羌活
挥发油
水蒸气蒸馏
超临界萃取
工艺
Notopterygium incisum Ting ex H. T. Chang
Volatile oils
SD
SFE-CO2
Technique
