SELECTIVE DESULFURIZATION OF DIBENZOTHIOPHENE BY RHODOCOCCUS-ERYTHROPOLIS D-1

被引:210
作者
IZUMI, Y
OHSHIRO, T
OGINO, H
HINE, Y
SHIMAO, M
机构
关键词
D O I
10.1128/AEM.60.1.223-226.1994
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
A dibenzothiophene (DBT)-degrading bacterium, Rhodococcus erythropolis D-1, which utilized DBT as a sole source of sulfur, was isolated from soil. DBT was metabolized to 2-hydroxybiphenyl (2-HBP) by the strain, and 2-HBP was almost stoichiometrically accumulated as the dead-end metabolite of DBT degradation. DBT degradation by this strain was shown to proceed as DBT --> DBT sulfone --> 2-HBP. DBT at an initial concentration of 0.125 mM was completely degraded within 2 days of cultivation. DBT at up to 2.2 mM was rapidly degraded by resting cells within only 150 min. It was thought this strain had a higher DBT-desulfurizing ability than other microorganisms reported previously.
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页码:223 / 226
页数:4
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