摘要
以木葡糖酸醋杆菌为目标菌种,以玉米浆干粉为氮源,进行了静态发酵生产细菌纤维素(BC)的动力学研究。结果表明,菌体生长适合于Logistic方程,BC生成符合Luedeking-Piret方程,还原糖消耗可用基于物料衡算的基质消耗方程描述,且模型计算值与试验值能较好吻合。因此,利用建立的数学模型可以预测系统的生产率,有效控制和优化静态发酵过程,为日后实现工业化规模生产提供理论基础。
With dried corn steep liquor powder as a single nitrogen source and Gluconacetobacter xylinus as a strain, study on the fermentation kinetic based on bacterial cellulose （BC） was conducted. The kinetic models were proposed based on the Logistic equation, Luedeking-Piret equation and substrate consumption equation for cell growth, BC production and residual sugar consumption, respectively. The above models appeared to provide a reasonable description for the BC fermentation equation. Therefore, the proposed models were applied to predict productivity of the systems and effectively control and optimize fermentation process, as well as offer theoretic foundation for industrial production of bacterial cellulose.
出处
《化学通报》
CAS
CSCD
北大核心
2013年第7期655-658,共4页
Chemistry
基金
吉林省自然科学基金项目(20101553)
吉林省教育厅"十一五"科学技术研究项目(2010-71)
东北电力大学博士科研启动基金(BSJXM-2012)资助
关键词
玉米浆干粉
静态发酵
细菌纤维素
发酵动力学
Dried corn steep liquor powder
Static fermentation
Bacterial cellulose
Fermentation kinetic
