食品科学 ›› 2011, Vol. 32 ›› Issue (6 ): 139-142.doi: 10.7506/spkx1002-6630-201106031

• 工艺技术 • 上一篇    下一篇

超声波辅助提取水溶性大豆多糖及纯化工艺

陈 红,张 波,刘秀奇,李 红,王大为*   

  1.  吉林农业大学食品科学与工程学院
  • 收稿日期:2010-07-11 修回日期:2011-02-10 出版日期:2011-03-25 发布日期:2011-03-03
  • 通讯作者: 陈红 E-mail:chenhong216@yahoo.com.cn
  • 基金资助:
    吉林农业大学科学研究启动基金项目(2009-6)

Ultrasonic-assisted Extraction and Purification of Water-soluble Polysaccharides from Soybean Dregs

CHEN Hong,ZHANG Bo,LIU Xiu-qi,LI Hong,WANG Da-wei*   

  1. College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
  • Received:2010-07-11 Revised:2011-02-10 Online:2011-03-25 Published:2011-03-03
  • Contact: CHEN Hong E-mail:chenhong216@yahoo.com.cn

摘要: 以脱脂挤压豆渣为原料,对超声波辅助提取水溶性大豆多糖及纯化工艺进行研究。通过单因素试验和正交试验,确定最佳工艺参数为提取pH4.5、热水温度90℃、液料比20:1(mL/g)、超声波功率200W、超声波提取时间40min时,水溶性大豆多糖的得率为8.82%。纯化粗多糖的条件为Sevag试剂中氯仿与正丁醇体积比3:1、萃取3次,所得纯化多糖的回收率为60.30%。

关键词: 脱脂挤压豆渣, 水溶性大豆多糖, 超声提取, 纯化

Abstract: Skimmed extruded soybean dregs were used as the raw material to prepare water-soluble polysaccharides through the steps of ultrasonic-assisted extraction and purification by Sevag s method. The optimal ultrasonic-assisted extraction parameters were found to be extraction pH of 4.5, temperature of 90 ℃, material/liquid ratio of 1:20 (g/mL), ultrasonic power of 200 W, and ultrasonic extraction time of 40 min. Under these optimal extraction conditions, the extraction rate of water-soluble soybean polysaccharides was up to 8.82%. The purification of crude polysaccharides was achieved by treating with a Sevag reagent composed of CHCl3 and n-butanol (3:1, V/V) 3 times. The recovery rate of purified polysaccharides was up to 60.30%.

Key words: skimmed extruded soybean dregs, water-soluble soybean polysaccharide, ultrasonic extraction, purification

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