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脱硫工程菌的构建及其脱硫性能分析
Authors
余志坚
李信
+3 more
李焕杰
李玉光
熊小超
Publication date
1 January 2008
Publisher
Abstract
以专一性脱硫菌德氏假单胞菌Pseudomonas delafieldii R-8为出发菌株,利用pPR9TT穿梭质粒构建脱硫操纵子表达载体,转化原始菌培养得到1株多拷贝脱硫基因的脱硫工程菌R-8-1,并对其脱硫性能进行了研究。结果表明,在同样的生物催化脱硫反应条件下,工程菌的脱硫活性达到6.25μmol DBT/g dry cell/h,是原始菌的2倍;柴油的脱硫试验表明,在12h内工程菌静息细胞能将柴油硫含量从310.8mg/L降至100.1mg/L,脱硫率达到68%,而原始菌为53%。进一步比较了重组质粒pPR-dsz在工程菌株中传代的稳定性,试验表明pPR-dsz在工程菌株R-8-1中具有良好的遗传稳定性。此研究为生物脱硫提供了1株优良的工程菌株,并为该技术的应用提供了参考
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oai:ir.ipe.ac.cn:122111/3108
Last time updated on 09/11/2016
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/37927
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
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oai:ir.ipe.ac.cn:122111/44321
Last time updated on 11/04/2021