食品科学 ›› 2012, Vol. 33 ›› Issue (23): 171-174.

• 生物工程 • 上一篇    下一篇

响应面法优化产赤藓糖醇菌株RH-UV-L4-F9的发酵条件

胡耀辉,李成斌,刘俊梅*   

  1. 吉林农业大学食品科学与工程学院
  • 收稿日期:2011-10-01 修回日期:2012-11-01 出版日期:2012-12-15 发布日期:2012-12-12
  • 通讯作者: 刘俊梅 E-mail:spring430817@163.com;springljm@gmail.com
  • 基金资助:

    国家成果转化基金

Optimization of Fermentation Conditions for Erythritol Production by Yeast RH-UV-L4-F9 Using Response Surface Methodology

  • Received:2011-10-01 Revised:2012-11-01 Online:2012-12-15 Published:2012-12-12

摘要: 为进一步提高糖蜜玉米浆发酵生产赤藓糖醇的产量,以高产赤藓糖醇耐高渗酵母RH-UV-L4-F9为出发菌株,采用响应面法优化发酵工艺参数。根据Box-Benhnken设计原理,在单因素试验基础上,采用三因素三水平响应面分析,确定最佳发酵工艺参数为:温度32.3℃、pH5.1、摇床转速176r/min。在此优化条件下赤藓糖醇产量达到166.89mg/mL,是初始条件下的1.2倍。

关键词: 赤藓糖醇, 响应面分析, 发酵, 优化

Abstract: This work reports the application of response surface methodology based on a three-variable, three-level Box-Benhnken design to optimize fermentation parameters to enhance the production of erythritol from molasses and corn syrup using yeast RH-UV-L4-F9, a potent erythritol producing strain. The optimal values of temperature, pH and shaking speed were 32.3 ℃, 5.1 and 176 r/min, respectively. Under the optimized conditions, the yield of erythritol was 166.89 mg/mL, which was 1.2-fold higher than before the optimization.

Key words: erythritol, response surface methodology, fermentation, optimization

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