Kinetics of Growth and Aniline Degradation by Stenotrophomonas maltophilia
Kinetics of Growth and Aniline Degradation by Stenotrophomonas maltophilia
复制标题
嗜麦芽寡养单胞菌的生长和苯胺降解动力学
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
G. Lyberatos
中科院分区：
文献类型：
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作者：
U. Zissi;G. Lyberatos
分离到一株能以苯胺为唯一碳源的嗜麦芽窄食单胞菌。进行动力学实验以建立数学模型，该模型准确描述了微生物在苯胺和替代碳源（葡萄糖）单独及其混合物上的生长和利用率。利用Monod限制底物表达式可以很好地描述微生物的生长和底物利用。培养基中葡萄糖的存在不会抑制苯胺的分解代谢，但观察到同时利用。当两种底物都存在时，一种底物的利用率对另一种底物的利用率有相当大的影响。这些影响被证明是预测的数学模型的基础上修改莫诺表达式。所提出的模型被发现能够准确地描述细胞生长以及苯胺和葡萄糖生物降解。
A pure bacterial culture of Stenotrophomonas maltophilia, capable of using aniline as a sole carbon source, was isolated. Kinetic experiments were conducted to develop a mathematical model that describes accurately the growth and utilization rates of the microorganism on the aniline and an alternate carbon source (glucose) individually and on their mixture. The growth of microorganisms and substrate utilization could be well described by using Monod expressions for limiting substrates. The presence of glucose in the culture medium did not repress aniline catabolism but simultaneous utilization was observed. When both substrates were present, the utilization of one substrate had a considerable effect on the utilization of the other. These effects were shown to be predicted by a mathematical model based on a modified Monod expression. The proposed model was found capable of describing accurately cellular growth as well as aniline and glucose biodegradation.