食品科学 ›› 2011, Vol. 32 ›› Issue (6 ): 143-147.doi: 10.7506/spkx1002-6630-201106032

• 工艺技术 • 上一篇    下一篇

超临界CO2萃取北方地区早园竹叶中总黄酮的工艺优化

张珊珊1,朱文娴1,赵晓红2,刘绍鹏3   

  1. 1.徐州空军学院 2.北京联合大学应用文理学院 3.中国矿业大学 煤炭加工与高效洁净利用教育部重点实验室
  • 收稿日期:2010-05-19 修回日期:2011-01-27 出版日期:2011-03-25 发布日期:2011-03-03
  • 通讯作者: 张珊珊 E-mail:zss_1982@126.com

Process Optimization for Supercritical Carbon Dioxide Extraction of Total Flavonoids from Praecox Leaves in Northern Areas

ZHANG Shan-shan1,ZHU Wen-xian1,ZHAO Xiao-hong2,LIU Shao-peng3   

  1. 1. Xuzhou Air Force College, Xuzhou 221000, China;2. College of Art and Science, Beijing Union University, Beijing
    100083 ;3. Key Laboratory of Coal Processing and Efficient Utilization, China University of Mining and Technology, Xuzhou
    221008, China
  • Received:2010-05-19 Revised:2011-01-27 Online:2011-03-25 Published:2011-03-03
  • Contact: ZHANG Shan-shan E-mail:zss_1982@126.com

摘要: 研究超临界CO2流体萃取法提取北方地区早园竹叶中黄酮的工艺。通过单因素试验确定影响总黄酮得率的主要因素及其最佳水平范围,并通过正交试验确定最佳萃取条件。结果表明:萃取温度36℃、乙醇体积分数50%、萃取压强35MPa、夹带比9%、萃取时间40min,在此条件下总黄酮得率可达到23.24mg/g。可以运用超临界CO2流体萃取技术对竹叶黄酮进行提取,且提取效率较高。

关键词: 提取, 竹叶, 超临界CO2流体萃取, 总黄酮

Abstract: Supercritical CO2 fluid extraction technique  was explored to extract total flavonoids from praecox leaves in northern areas of China. Single-factor design was used to determine main variables that influence extraction rate of total flavonoids. The optimal extraction conditions were achieved to be extraction temperature of 36 ℃, ethanol concentration of 50%, extraction pressure of 35 MPa, entrainer (absolute ethanol) amount of 1:15, entrainer amount 9% and extraction time of 40 min. Under the optimal extraction conditions, the extraction rate of total flavonoids was 23.24 mg/g. The supercritical fluid CO2 extraction can be used for the extraction of total flavonoids from praecox leaves with high extraction efficiency.

Key words: praecox leaves, supercritical fluid CO2 extraction, total flavonoids, extraction

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