摘要
对枯草芽孢杆菌合成γ-聚谷氨酸的发酵动力学特性进行了研究,通过Logistic方程,提出了发酵过程中菌体生长、γ-聚谷氨酸合成、基质消耗的动力学模型。应用MATLAB数值应用软件对实验数据进行处理,得到了枯草芽孢杆菌分批发酵合成γ-聚谷氨酸的动力学模型参数。对实验数据与模型进行比较,结果表明模型与实验数据能较好地拟合,基本上反映了枯草芽孢杆菌分批发酵过程的动力学特征。
The fermentation kinetics of γ-polyglutarnic acid production by Bacillus subtilis was investigated in this study. A series kinetic model for microorganism growth,γ-polyglutamic acid formation and substrate consumption during fermentation were constructed based on the Logistic equation. The data was analyzed with the MATLAB software to generate the kinetics parameters of γ-polyglutamic acid production with batch fermentation. The experimental data and models were compared. The results showed the model could fit the experimental data well, and the model appeared to provide a reasonable description for the batch fermentation process.
出处
《中国酿造》
CAS
北大核心
2008年第11期59-62,共4页
China Brewing