细菌纤维素与γ-聚谷氨酸复合膜发酵动力学的研究  

Fermentation Kinetics of Bacterial Cellulose and γ-polyglutamic Acid Composite Membrane

作　　者：董炎炎 曹思卉 陈君娜[1] 马霞[1] 陈世文[2] 

机构地区：[1]上海应用技术学院香料香精技术与工程学院,上海201418 [2]上海交通大学附属第六人民医院,上海200233

出　　处：《食品工业》2014年第12期176-180,共5页The Food Industry

基　　金：上海市联盟计划(LM201104);上海交通大学医工交叉项目(YG2012MS34);上海市卫生局项目(20124071)

摘　　要：为了优化细菌纤维素与γ-聚谷氨酸复合膜发酵过程,提高复合膜产量,对木醋杆菌分批发酵复合膜进行了研究。根据木醋杆菌发酵过程的特点,在Logistic方程和Ludedking-Piret方程的基础上,建立了木醋杆菌发酵过程中菌体生长、底物消耗和细菌纤维素与γ-聚谷氨酸复合膜形成的动力学方程。利用1st Opt软件对试验数据进行了处理,得到了木醋杆菌分批发酵动力学模型参数。结果表明,模型值和试验值吻合较好,所建立的方程能较好地预测其实际发酵过程,具有很好的适用性,对细菌纤维素与γ-聚谷氨酸复合膜的发酵生产具有很好的指导意义。To optimize the fermentation process of bacterial cellulose/γ-polyglutamic acid composite membrane, the growth characteristics were investigated to analyze the fermentation kinetics. Based on the characteristics of Acetobacter xylinum, Logistic equation and Luedeking-Piret equation, the kinetic models were established to describe the fermentation features of strain growth, substrate consumption and cellulose/γ-polyglutamic acid composite membrane. The experiment data was processed with 1st Opt software to obtain batch fermentation kinetics model parameter. The good agreement of prediction values with the experimental results showed that the proposed kinetic models were suitable for predicting the actual fermentation process.

关 键 词：木醋杆菌 细菌纤维素与γ-聚谷氨酸复合膜 发酵动力学 

分 类 号：TS201.3[轻工技术与工程—食品科学]