中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
苏云金杆菌流加发酵过程优化控制

文献类型:学位论文

作者董晓
学位类别硕士
答辩日期1995-03-01
授予单位中国科学院研究生院
授予地点北京
导师钱梓文
关键词苏云金杆菌 流加培养 过程模拟 优化和控制
其他题名Optimization and Control in Fed-batch Culture of Bacillus Thuringiensis
学位专业生化
中文摘要本文研究了苏云金杆菌库斯塔克亚种在分批培养和间歇流加培养下的工艺条件。在所确定的优化工艺条件下,分批培养芽孢浓度达30.1亿/ml,流加培养芽孢浓度达49.6亿/ml,基质利用率提高了23%。两种情况下芽孢和晶体溶出的同步率达90%以上。通过理论分析和衡算,分别基于Monod方程(考虑了死亡率K_d)和Verhulst方程建立了B.t.k.发酵过程(包括分批培养过程和流加培养过程)的动力学模型。对分批培养过程进行了模拟,并进一步建立了预报模型,以发酵前期的数据预测后期的情况;对B.t.k.间歇流加培养过程进行了理论分析,并对其菌体增殖过程进行了模拟。将递推最小二乘法用于耗糖的预报。最后提出了B.t.k.流加培养过程的优化控制方案。
英文摘要The batch culture(BC) and intermittent gradient fed-batch culture(IFBC) of Bacillus thuringiensis var. kurstaki(B.t.k. HD-1) are investigated. Through experiments in Erlenmeyer flasks and in 5L fermentor, the optimal culture conditions are determined. Compared with BC, the availability of nutritions in IFBC is improved by 23%. In both culture process, more than 90% cells simultaneously lysised with high ratio of parasporal crystals to spores and also with normal shapes of crystals. Based on Monod equation and Verhulst equation respectively, two types of kinetic model of B.t.k.. fermentation process are established (including BC and IFBC). The process of BC is simulated, then a predictive model of BC is founded. Through theoretical analysis, the cell growth of IFBC process is also simulated. Recursive Least Square algorithm is used to predict the glucose concentration. Finally, a control scheme for B.t.k. IFBC process is put forward, after considering its global performance.
语种中文
公开日期2013-10-15
页码75
源URL[http://ir.ipe.ac.cn/handle/122111/3255]  
专题过程工程研究所_研究所(批量导入)
推荐引用方式
GB/T 7714
董晓. 苏云金杆菌流加发酵过程优化控制[D]. 北京. 中国科学院研究生院. 1995.

入库方式: OAI收割

来源:过程工程研究所

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