华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (4): 43-47.

• • 上一篇    下一篇

影响USFE萃取海藻EPA 和DHA 的因素分析

丘泰球 丁彩梅 胡爱军 闫杰   

  1. 华南理工大学 食品与生物工程学院‚广东 广州510640
  • 收稿日期:2003-09-26 出版日期:2004-04-20 发布日期:2015-09-08
  • 通信作者: 丘泰球(1941-)‚男‚教授‚博士生导师‚主要从事声化学技术研究. E-mail:scut.qiutaiqiu@163.net
  • 作者简介:丘泰球(1941-)‚男‚教授‚博士生导师‚主要从事声化学技术研究.
  • 基金资助:
    广州市科技计划项目(穗科条字[2002]27号)

Analyses of Factors Affecting the Ultrasonically-enhanced Supercritical Fluid Extraction of EPA and DHA from Algae

Qiu Tai-qiu  Ding Cai-mei  Hu Ai-jun  Yan Jie   

  1. College of Food and Biological Engineering‚South China Univ.of Tech.‚Guangzhou510640‚Guangdong‚China
  • Received:2003-09-26 Online:2004-04-20 Published:2015-09-08
  • Contact: Qiu Ta- i qiu (born in 1941)‚male‚professor‚Ph.D.tutor‚mainly researches on sonochemistry technique. E-mail:scut.qiutaiqiu@163.net
  • About author: Qiu Ta- i qiu (born in 1941)‚male‚professor‚Ph.D.tutor‚mainly researches on sonochemistry technique.
  • Supported by:
    Supported by the Scientific and Technological Project of Guangzhou City (Suiketiaozi (2002)27)

摘要: 研究了萃取温度、压力、时间、CO 2 流量和超声参数对超声强化超临界流体萃取海藻 EPA 和 DHA 的影响.发现与超临界流体萃取相比‚超声强化超临界流体萃取过程使CO 2 流量减小‚萃取温度及压力降低‚萃取时间缩短‚而 EPA 和 DHA 的萃取率提高.在单因素实验的基础上进行了正交实验.结果表明‚超声强化超临界流体萃取 EPA 和 DHA 的最佳工艺条件为:萃取温度35℃‚压力25MPa‚时间3.0h‚CO 2 流量3L/h.

关键词: 超临界流体萃取, 超声, 强化, 二十碳五烯, 二十二碳六烯酸, 海藻

Abstract: Factors affecting the ultrasonically-enhanced supercritical fluid extraction (USFE) of EPA and DHA from algae were studied‚including the temperature‚pressure and time of the extraction‚CO 2 flowrate and ultrasonic parameters.Compared with supercritical fluid extraction (SFE)‚USFE makes CO 2 flowrate and the temperature‚pressure and time of the extraction decrease‚while the extration yields of EPA and DHA increase.On the basis of singl- efactor experiments‚an orthogonal experiment was carried out.The results indicate that the extraction undertaken at the extraction temperature of35℃ and the pressure of25MPa for a extraction time of3.0h and with a CO 2 flowrate of3L/h is the optimum technology approach to extract EPA and DHA by USFE.

Key words: supercritical fluid extraction, ultrasonic, enhancement, eicosapentaenoic acid, docosahexaenoic acid;

中图分类号: