DBP降解菌的降解动力学及代谢途径研究

燃料与化工 ›› 2013, Vol. 44 ›› Issue (4): 41-44.

• 煤气净化与化学产品加工 • 上一篇下一篇

DBP降解菌的降解动力学及代谢途径研究

王巧凤颜家保许龙龙杨洋余永登

武汉科技大学化学工程与技术学院，武汉430081

出版日期:2013-07-26

Degradation kinetics and metabolic pathway of a strain for di-n-butyl phthalate degrading

Wang Qiaofeng Yan Jiabao Xu Longlong Yang Yang Yu Yongdeng

College of Chemical Engineering and Technology, Wuhan University of Science and Technology,Wuhan 430081,China

Online:2013-07-26

摘要/Abstract

摘要：

以实验室保存的1株Elizabethkingia sp.W8为研究对象，对其降解DBP的条件、动力学特性及代谢途径进行了研究。结果表明，该菌株的较优生长条件为：温度35℃，pH=7.0，盐浓度0.5%。当DBP的初始浓度介于50～400mg/L时，该菌株对DBP的降解符合Monod一级反应动力学模型。红外光谱分析结果显示，W8对邻苯二甲酸二丁酯的降解很可能为DBP→MBP→PA代谢路径。

Abstract:

As the Elizabethkingia sp.strain W8 isolated by our lab for the dominate bacteria of our further research,the degradation kinetics and biodegradation pathway were studied.The result shows that the optimal temperature,initial pH value and salt concentration for W8 is 35℃,pH 7.0 and 0.5% respectively.When the initial concentration of DBP was between 50 and 400mg/L,thestrain on the degradation of DBP is tested in line with the Gr.1 Monod kinetics model.The FT-IR analysis demonstrates that the degradation of DBP most likely follows the pathway: DBP→MBP→PA.

中图分类号:

X703.1

王巧凤颜家保许龙龙杨洋余永登. DBP降解菌的降解动力学及代谢途径研究[J]. 燃料与化工, 2013, 44(4): 41-44.