食品科学

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枯草芽孢杆菌HB-32产3-羟基丁酮分批发酵动力学

徐 慧,刘建军   

  1. 山东省食品发酵工程重点实验室,山东 济南 250013
  • 出版日期:2013-07-15 发布日期:2013-06-28
  • 通讯作者: 徐 慧
  • 基金资助:

    山东省科技攻关计划项目(2009GG20002022)

Kinetics of Acetoin Production by Bacillus subtilis HB-32 in Batch Fermentation

XU Hui,LIU Jian-jun   

  1. Key Laboratory of Food and Fermentation Engineering of Shandong Province, Jinan 250013, China
  • Online:2013-07-15 Published:2013-06-28
  • Contact: XU Hui

摘要:

对草芽孢杆菌HB-32分批发酵过程中菌体细胞生长、3-羟基丁酮的形成以及葡萄糖的消耗随发酵时间的变 化规律进行研究。基于Logistic方程和Luedeking-Piret方程,建立3-羟基丁酮分批发酵过程中细胞生长、产物合成以 及基质消耗随时间变化的数学模型。对动力学模型的拟合曲线进行分析,发现模型的计算值能与实验值较好地拟 合,拟合模型R2均大于0.98,表明建立的动力学模型能较好地反映3-羟基丁酮分批发酵过程。

关键词: 枯草芽孢杆菌, 3-羟基丁酮, 分批发酵, 发酵动力学模型

Abstract:

The cell growth of acetoin accumulation and glucose consumption by Bacillus subtilis HB-32 throughout the
batch fermentation were investigated and corresponding kinetic models were proposed according to Logistic and Luedeking-
Piret equations. The results showed that the predicted values by the models were in good agreement with the measured
values, indicating that the models could provide a reasonable description for the acetoin bath fermentation.

Key words: Bacillus subtilis, acetoin, bath fermentation, fermentation kinetic models

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