2003
DOI: 10.2516/ogst:2003036
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Genotypic Characterization of Sulfur-Oxidative Desulfurizing Bacterial Strains Isolated from Mexican Refineries

Abstract: Résumé -Caractérisation génotypique de souches bactériennes isolées de raffineries mexicaines, capables de désulfuration par oxydation du soufre -Nous avons effectué une caractérisation génotypique de nouvelles bactéries désulfurant le dibenzothiophène (DBT) par attaque spécifique de l'atome de soufre, isolées à partir de sols contaminés par des hydrocarbures et provenant de raffineries mexicaines. Nous les avons comparées à deux souches de référence (Rhodococcus erythropolis IGTS8 et R. erythropolis X309). Ce… Show more

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Cited by 8 publications
(5 citation statements)
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“…We found that the isolate did not show any growth on DBT alone and needs another carbon source in a co-metabolism. This result was also observed by other researches on Rhodococcus erythropolis (Bustos-Jaimes et al, 2003;Izumi et al, 1994). However, the thermophilic bacterium Panibacillus should degrade DBT in a CÐC bond-targeted fashion because it utilizes DBT as a sole carbon source (Konishi et al, 1997).…”
Section: Effects Of Carbon Source On Growth and Dbt Desulfurizationsupporting
confidence: 91%
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“…We found that the isolate did not show any growth on DBT alone and needs another carbon source in a co-metabolism. This result was also observed by other researches on Rhodococcus erythropolis (Bustos-Jaimes et al, 2003;Izumi et al, 1994). However, the thermophilic bacterium Panibacillus should degrade DBT in a CÐC bond-targeted fashion because it utilizes DBT as a sole carbon source (Konishi et al, 1997).…”
Section: Effects Of Carbon Source On Growth and Dbt Desulfurizationsupporting
confidence: 91%
“…The sulfur-containing compounds present in petroleum are transformed into sulfur oxides by combustion of fuels, causing serious environmental problems such as acid rain (Bustos-Jaimes et al, 2003). The thermochemical hydrodesulfurization (HDS) process is presently used in refineries for the removal of sulfur, but some sulfur-containing compounds are recalcitrant to it (Matsubara et al, 2001;Tanaka et al, 2002).…”
Section: Introductionmentioning
confidence: 97%
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“…RIPI90A resting cells grown on DMSO were reacted with DBT and DBTO 2 separately, and the results revealed that the Dsz phenotype in this strain could be expressed via the 4S pathway in the presence of DMSO as the sulfur source. DMSO has been found to be more easily metabolized than DBT, and it can also induce the dsz genes (Bustos-Jaimes et al, 2003). However, with resting cells of Rhodococcus sp.…”
Section: Discussionmentioning
confidence: 99%
“…P. validus PD2 was cultured in the presence of different sulfur compounds. As shown in Table III, a higher cell density was obtained when DMSO was used as the sole sulfur source, because of more easily metabolization of DMSO than others sulfur sources (Bustos-Jaimes et al, 2003). Moreover, the growth rate can be inhibited by production of 2-HBP when DBT is used as the sulfur source (Setti et al, 2003).…”
Section: Resultsmentioning
confidence: 99%