研究论文
全向春,王建龙,韩力平,施汉昌,钱易.喹啉与葡萄糖共基质条件下生物降解的动力学分析[J].环境科学学报,2001,21(4):416-419
喹啉与葡萄糖共基质条件下生物降解的动力学分析
- Biodegradation kinetics of a mixture containing quinoline and glucose by burkholderia pickettii strain
- 基金项目：国家自然基金资助项目(29637010)
- 作者
- 单位
- 全向春
- 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京 100084
- 王建龙
- 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京 100084
- 韩力平
- 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京 100084
- 施汉昌
- 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京 100084
- 钱易
- 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京 100084
- 摘要：研究了在喹啉与葡萄糖共基质时皮氏伯克霍尔得氏菌(Burkholderiapickettii)对二者的降解动力学.结果表明:在共基质条件下,喹啉与葡萄糖能同时被微生物降解.葡萄糖的存在对喹啉的生物降解起到一定的促进作用,而喹啉的存在减慢了微生物对葡萄糖的降解作用.50mg·L-1喹啉与34、60、110mg·L-1葡萄糖共基质时,喹啉与葡萄糖的降解都遵循一级反应动力学.300mg·L-1喹啉与110、320、690mg·L-1
- Abstract：The kinetics of utilization of a mixture of quinoline and glucose by Burkholderia pickettii was studied. It was found that quinoline and glucose can be degraded by the bacteria simultaneously, and the biodegradation rate of quinoline was increased in the presence of glucose, while glucose degradation was inhibited by quinoline. The kinetics of both quinoline and glucose follow first-order model at the mixture concentration of 50mg·L-1 quinoline with 34, 60 or 110mg·L-1 glucose. When the co-substrates concentration changed to 300mg·L-1 quinoline with 110, 320 or 690mg·L-1 glucose, quinoline degradation no longer followed first-order model, although glucose degradation was still first-order at glucose concentration 110mg·L-1 , glucose kinetics at glucose concentration 320 and 690mg·L-1 was changed to zero-order.
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