基因工程菌去除镉离子的数学模型研究

Study on Mathematical Model of Cadmium Ion Removal by Genetically Engineered Bacteria

在实验的基础上,对米-门方程进行了改进,建立了基因工程菌去除镉离子的数学模型。该模型用lgnCF(CF.Colony-Forming活菌计数)表示菌浓度,能直接从重金属离子浓度得出它和基因工程菌pGEX-ZjMT-B[1]生长率的定量关系。通过实验数据对拟合的方程进行验证,结果表明,改进后的米-门方程可以直接反应镉离子浓度和基因工程菌pGEX-ZjMT-B生长率的定量关系,大大缩短了实验时间,提高了效率。

The mathematical model of cadmium ion removal by genetically engineered bacteria was established on the basis of experiment and improve Meter-Door equation. In the model LgnCF （CF.Colony-Forming） represents bacteria concentration and can directly derive quantitative relationship of the growth rate of genetically engineered bacteria pGEX-ZjMT-B from the concentration of heavy metal ions. Through fitting experimental data with equations, the results show that the equation described well the quantitative relationship, between the cadmium ion concentration and the growth rate of genetically engineered bacteria pGEX-ZjMT-B, meanwhile, conclude that experimental time was greatly shortened,and experimeutal effcieny was improved.