Desulfurization of dibenzothiophene and diesel oils by a newly isolated Gordona strain, CYKS1

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A dibenzothiophene (DBT)-desulfurizing bacterial strain was isolated and identified as Gordona strain CYKS1. Strain CYKS1 was found to transform DBT to 2-hydroxybiphenyl via the 4S pathway and to be able to also use organic sulfur compounds other than DBT as a sole sulfur source, Its desulfurization activity was susceptible to sulfate repression. Active resting cells for desulfurization could be prepared only in the early growth phase. When two types of diesel oils, middle distillate unit feed (MDUF) and light gas oil (LGO) containing various organic sulfur compounds including DBT, were treated with resting cells of strain CYKS1 for 12 h, the total sulfur content significantly decreased, from 0.15% (wt/wt) to 0.06% (wt/wt) for MDUF and from 0.3% (wt/wt) to 0.25% (wt/wt) for LGO. The newly isolated strain CYKS1 is considered to have good potential for application in the biodesulfurization of fossil fuels.
Publisher
AMER SOC MICROBIOLOGY
Issue Date
1998-06
Language
English
Article Type
Article
Keywords

RHODOCOCCUS-ERYTHROPOLIS D-1; MICROBIAL DESULFURIZATION; SULFUR-COMPOUNDS; FOSSIL-FUELS; IGTS8; IDENTIFICATION; DEGRADATION; MECHANISMS

Citation

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, v.64, no.6, pp.2327 - 2331

ISSN
0099-2240
URI
http://hdl.handle.net/10203/71408
Appears in Collection
CBE-Journal Papers(저널논문)
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