木醋杆菌在转盘式反应器中的发酵动力学研究

Fermentation Kinetics of Acetobacter xylinum in Rotating Biodisc Reactors

摘要:

对细菌纤维素生产菌株QAX993的发酵动力学特性进行了研究，基于Logistic方程，提出了菌体生长动力学、基质消耗动力学、纤维素合成动力学模型，得到了使用转盘式反应器分批发酵合成细菌纤维素的动力学模型参数，同时对实验数据与模型进行了比较，模型与实验数据能够较好地拟合，模型基本上反映了该菌株在转盘式反应器中分批发酵过程的动力学特征。

Abstract:

The fermentation kinetics of a bacterial cellulose-producing strain QAX993 was studied and the kinetic models of microorganism growth, product formation and substrate consumption were developed based on the Logistic equation and then the kinetics parameters of the batch fermentation in rotating biodisc reactor for bacterial cellulose production were obtained. Results showed that the model predicted very well the kinetics characteristics of the stain QAX993 mediated batch fermentation in rotating biodisc reactor.