| 铜绿假单胞菌对DBP的降解特性研究 | |
| 吴为中 ; 朱擎 ; 冯菁 ; 高航 ; 谢辰琦 ; 王建龙 ; WU Wei-zhong ; ZHU Qing ; FENG Jing ; GAO Hang ; XIE Chen-qi ; WANG Jian-long | |
| 2010-06-04 ; 2010-06-04 | |
| 关键词 | 邻苯二甲酸二丁酯 生物吸附 生物降解 动力学 铜绿假单胞菌 di-n-butyl phthalate(DBP) biosorption biodegradation kinetic Pseudomonas aeruginosa X172 |
| 其他题名 | Biodegradation of Di-n-butyl Phthalate by Pseudomonas aeruginosa |
| 中文摘要 | 采用小容量全萃取方法,研究了1株铜绿假单胞菌对BDP的降解特性.结果表明,该菌株对DBP具有高效降解能力,当DBP浓度为400mg/L,投菌量为2g/L时,t1/2为3.60d;其降解过程完全符合一级反应动力学.DBP作为该菌生长的唯一碳源时,其降解过程包括快速生物吸附、解析、降解等几个阶段.实验还确认了存在邻苯二甲酸单丁酯和邻苯二甲酸2种中间产物,从而验证了DBP在双加氧水解酶作用下2步水解变为邻苯二甲酸的历程.; A new small capacity-wide extraction method was proposed for detection of its biodegradation in water.Results showed that the half-life(t_ 1/2)of di-n-butyl phthalate(DBP)biodegradation was 3.60 day when the concentration of DBP was 400 mg/L and the biomass concentration was 2 g/L.The biodegradation process conformed to the first-order kinetic model.Moreover,the whole degradation process could be divided into several steps:adsorption,desorption and degradation.Two metabolites of DBP degradation were identified as mono-butyl phthalate and phthalic acid by gas chromatography-mass spectrometry,which confirmed the dioxygenate process during the hydrolysis of DBP.; 国家自然科学基金项目(50325824;50678089); 教育部优秀青年教师计划项目 |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/35971]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 吴为中,朱擎,冯菁,等. 铜绿假单胞菌对DBP的降解特性研究[J],2010, 2010. |
| APA | 吴为中.,朱擎.,冯菁.,高航.,谢辰琦.,...&WANG Jian-long.(2010).铜绿假单胞菌对DBP的降解特性研究.. |
| MLA | 吴为中,et al."铜绿假单胞菌对DBP的降解特性研究".(2010). |
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