CIESC Journal

• SEPARATION SCIENCE & ENGINEERING • 上一篇    下一篇

超声辅助浸取葛藤异黄酮及其数学模型

徐化能1,2; 张颖心1; 何潮洪1   

  1. 1 Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
    2 School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • 收稿日期:2007-01-29 修回日期:1900-01-01 出版日期:2007-12-28 发布日期:2007-12-28
  • 通讯作者: 徐化能

Ultrasonically assisted extraction of isoflavones from stem of Pueraria lobata (Willd.) Ohwi and its mathematical model

XU Huaneng1,2, ZHANG Yingxin1; HE Chaohong1   

  1. 1 Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
    2 School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • Received:2007-01-29 Revised:1900-01-01 Online:2007-12-28 Published:2007-12-28
  • Contact: XU Huaneng

摘要: Ultrasonically assisted extraction of isoflavones from the stem of Pueraria lobata (Willd.) Ohwi has been carried out with an ultrasonic extracting apparatus (20kHz, electrical power input to the transducer in 0—650W). The influence of the electrical power input and extraction time on the extraction yield is investigated in water, n-butanol, and 95% (by volume) and 50% (by volume) ethanol aqueous solution. The experimental results indicate that the yields of total isoflavones are higher in ultrasonically assisted extraction than those obtained from conventional extraction. Moreover, a mathematical model is proposed, by introducing the electrical power input to index the ultrasound intensity, to describe the behavior of ultrasonically assisted extraction. It is found that the model calculations are in good agreement with the experimental data.

关键词: ultrasound;mathematical model;extraction;Pueraria lobata (Willd.) Ohwi

Abstract: Ultrasonically assisted extraction of isoflavones from the stem of Pueraria lobata (Willd.) Ohwi has been carried out with an ultrasonic extracting apparatus (20kHz, electrical power input to the transducer in 0—650W). The influence of the electrical power input and extraction time on the extraction yield is investigated in water, n-butanol, and 95% (by volume) and 50% (by volume) ethanol aqueous solution. The experimental results indicate that the yields of total isoflavones are higher in ultrasonically assisted extraction than those obtained from conventional extraction. Moreover, a mathematical model is proposed, by introducing the electrical power input to index the ultrasound intensity, to describe the behavior of ultrasonically assisted extraction. It is found that the model calculations are in good agreement with the experimental data.

Key words: ultrasound, mathematical model, extraction, Pueraria lobata (Willd.) Ohwi