食品科学 ›› 2008, Vol. 29 ›› Issue (12): 231-233.

• 工艺技术 • 上一篇    下一篇

超临界CO2萃取滩枣精油工艺条件优化研究

 曹艳萍, 代宏哲, 曹炜, 刘步明, 韩志萍   

  1. 榆林学院化学系; 西北大学食品工程系;
  • 出版日期:2008-12-15 发布日期:2011-12-08

Study on Optimization of Supercritical CO2 Fluid Extraction Technology of Chinese Dates(Zizyphus jujuba) Essential Oil

 CAO  Yan-Ping, DAI  Hong-Zhe, CAO  Wei, LIU  Bu-Ming, HAN  Zhi-Ping   

  1. 1.Department of Chemistry,Yulin College,Yulin 719000,China;2.Department of Food Engineering,Northwest University,Xi an 710069,China
  • Online:2008-12-15 Published:2011-12-08

摘要: 采用正交试验,考察萃取压力、温度、携带剂和料液比四个因素对滩枣精油萃取率的影响,并对精油成分进行GC-MS分析。得到的最佳萃取条件为:萃取压力35MPa,萃取温度40℃,乙醇作携带剂,料液比1:0.9,在此条件下经过0.5h萃取,滩枣精油的萃取率可达1.51%。

关键词: 滩枣, 超临界CO2萃取, 正交试验

Abstract: This study aimed to optimize the extraction conditions of volatile components from Chinese dates(Zizyphus jujuba) through orthogonal test and analyze the extract by using GC-MS. Four affecting factors were investigated,including extractive pressure,temperature,co-solvent type and ratio of raw material to co-solvent. The optimal extraction conditions are:extraction pressure 35 MPa,temperature 40 ℃,and ethanol as co-solvent,ratio of raw material to ethanol 1:0.9. The extraction yield could reach 1.51% under these optimal conditions.

Key words: Zizyphus jujuba, supercritical CO2 extraction, orthogonal test