枯草芽孢杆菌(Bacillus subtilis)降解萘的动力学研究  

Dynamics of Degrading Naphthalene by Bacillus subtilis

作　　者：方世纯[1] 郝瑞霞[1] 鲁志强[1] 

机构地区：[1]北京大学造山带与地壳演化重点实验室,北京100871

出　　处：《高校地质学报》2007年第4期682-687,共6页Geological Journal of China Universities

基　　金：国家重点基础研究发展计划资助项目(2007CB815601);石油科技中青年创新基金资助项目

摘　　要：枯草芽孢杆菌(Bacillus subtilis)HBS-4是从油田中分离出来的一株能高效降解有机物萘的菌株。当萘的初始浓度为100mg时,该菌株在pH为8.0,温度为40℃下具有较好的降解效果,作用69h能降解50%以上的萘。通过HBS-4菌株降解萘的动力学研究,在Williams结构模型的基础上建立了HBS-4作用萘的四组分动力学模型,并用此模型解释菌株HBS-4在降解萘的过程中,葡萄糖含量、菌液浓度、pH、Eh随时间的变化特征。Bacillus subtilis HBS-4, isolated from oil, can effectively indicate： when the initial concentrations than 50% of naphthalene within 69 hours of naphthalene was 100mg/kg, under pH=8 and 40℃. Based degrade naphthalene. The research results Bacillus subtilis HBS-4 could degrade more on the experimental data of Bacillus subtilis HBS-4, the Williams configuration model was modified, and a dynamic model of degrading naphthalene by strain HBS-4 was established. The glucose content, OD value, pH and Eh values changed with time, and these changes were interpreted by the new model.

关 键 词：枯草芽孢杆菌(Bacillus subtilis) 萘 降解 动力学 结构模型 

分 类 号：P593[天文地球—地球化学]