食品科学 ›› 2003, Vol. 24 ›› Issue (10): 85-88.

• 工艺技术 • 上一篇    下一篇

超临界CO2脱除银杏叶中银杏酸的研究

 吴向阳, 仰榴青, 陈钧, 杨克迪   

  1. 江苏大学化学化工学院,江苏大学药学院,江苏大学生物与环境工程学院
  • 出版日期:2003-10-15 发布日期:2011-12-13

Research on Removing Ginkgolic Acids from Ginkgo biloba Leaves by Supercritical CO2 Fluid Extraction

 WU  Xiang-Yang, YANG  Liu-Qing, CHEN  Jun, YANG  Ke-Di   

  1. 1.School of Chemistry and Chemical Engineering,Jiangsu University;2.School of Pharmacy,Jiangsu University;3.Department of Biological and Environmental Engineering,Jiangsu University
  • Online:2003-10-15 Published:2011-12-13

摘要: 对银杏叶中有毒成分银杏酸的超临界CO2脱除工艺进行了研究,通过三因素三水平正交试验探讨了操作压力、温度和CO2总流量对银杏酸脱除率的影响。结果表明,超临界CO2萃取法可以有效地脱除银杏叶中的银杏酸,最佳工艺参数为压力30MPa、温度60℃、总流量600L,脱除率达79.1%,萃取过的银杏叶中银杏酸含量0.25%,为高品质银杏茶生产提供了新方法。

关键词: 银杏叶, 银杏茶, 银杏酸, 超临界CO2萃取

Abstract: Removing of toxic component -ginkgolic acids test from Ginkgo biloba leaves by Supercritical CO2 Fluid Extractionwas studied. The effect of operating pressure, operating temperature and total volume of CO2 on rate of removing ginkgolic acidswere investigated by using orthogonal experiments. The results showed that ginkgolic acids in Ginkgo biloba leaves could be removedeffectively by Supercritical CO2 Fluid Extraction. The optimum extraction conditions were obtained at 30MPa and 60℃ with totalCO2 volume of 600L. The rate of removing ginkgolic acids could be up to 79.1%. The content of ginkgolic acids in extracted leavesof Ginkgo biloba by Supercritical CO2 was 0.25%. The new method was developed for a high quality Ginkgo biloba teasproduction.

Key words: leaves of Gingko biloba, teas of Gingko biloba, ginkgolic acids, supercritical CO2 fluid extraction