Predominant culturable crude oil-degrading bacteria in the coast of Kuwait

Al-Saleh, Eyad; Drobiova, Hana; Obuekwe, C. O.

doi:10.1016/j.ibiod.2008.11.004

Cited by 67 publications

(36 citation statements)

References 40 publications

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“…Isola-Kayode et al (2008) demonstrated that S. aureus was sensitive to 5% of diesel oil. AL-Saleh et al (2009) proved that S. hominis, isolated from the coast of Kuwait, was able to degrade hydrocarbon but only at low concentration (0.06%). The diversity in hydrocarbon uses for Staphylococcus was explicated by AL-Saleh et al (2009) who suggested high degree of crude oil-degrading bacterial population at the strain level but low diversity at the genus level.…”

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

“…Moreover, Vieira et al (2007) demonstrated that n-alkane compounds are the most susceptible to microbial attack, followed by branched alkanes, aromatics of low molecular weight. The isolated strains belonged to the genera Bacillus, Staphylococcus and Pseudomonas; all are well known to biodegrade a large spectrum of hydrocarbons, and are frequently isolated from polluted sites; the predominance of one genus is related to environmental conditions such as pH and salinity (AL-Saleh et al, 2009). In the current study, 23% of strains isolated from the reservoir of kerosene were able to degrade phenol, 15% were able to degrade catechol and 7.6% were able to degrade benzoic acid ( Table 2).…”

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

“…B. pimilus was isolated from solid waste crude oil samples, collected from the clean up of oil storage containers (Calvo et al, 2004). This particular strain showed a high emulsion capacity of crude oil, an ability to use naphthalene as a sole carbon source, and demonstrated an important mineralisation rate of crude oil that can reach 23 µg/min (AL-Saleh et al, 2009). The two isolated strains SS21 and S23, related to B. firmus DQ 118015.1 and B. subtilis HM030759.1, respectively, existed in both kerosene and diesel oil reservoirs.…”

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

“…In this study, all reservoirs contained, at least, one strain of Pseudomonas. Indeed, Pseudomonas strains have frequently been found in various sites polluted by petroleum and petroleum derivatives (AL-Saleh et al, 2009;Floodgate, 1984;Richard and Vogel, 1999;Vieira et al, 2007), suggesting that this genus, effectively, metabolizes hydrocarbon molecules and may dominate bacterial populations in media where petroleum pollution has occurred. Only five strains were isolated from diesel oil reservoir.…”

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

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Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Saiuml¹,

Hamed²,

Gam³

et al. 2013

Afr. J. Microbiol. Res.

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The petroleum reservoirs are commonly exposed to bacterial contamination. The proliferation of several bacterial species, could modify the product quality, change viscosity, help other sulfatereducing, iron reducing bacteria to grow, and accelerate reservoir biocorrosion. Thus, companies of storage and transport of petroleum frequently use biocides to prohibit bacterial proliferation. However, the use of the appropriate biocide, need an obvious knowledge of bacterial population harbouring the reservoir. Thus, in this study, we intended to isolate and identify the aerobic bacterial population existing in different reservoirs of petroleum derivatives in the refinery of Bizerte, Tunisia. The isolation and identification of these microorganisms may be of great interest in bioremediation of polluted sites. Besides, it could inform about hydrocarbon specificity of these microorganisms and therefore lead to the use of suitable biocides to clean these storage reservoirs. 25 different bacterial strains were isolated from water collected from reservoirs of crude oil, gasoline, diesel oil and kerosene. The different strains were identified using morphological and biochemical characterization, as well as sequencing of 16S rRNA. The systematic study of these strains showed that they belong to six different genera. The highest strain number was affiliated to the genera of Pseudomonas and Bacillus followed by genera of Staphylococcus, Enterobacter Comamonas and Paenibacillus. The results of this study are discussed in terms of the ecological significance of these microorganisms in relation with physicochemical conditions of reservoirs and hydrocarbon composition.

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Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

Section: Study Of Bacterial Distribution In Various Reservoirsmentioning

confidence: 99%

See 2 more Smart Citations

Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Saiuml¹,

Hamed²,

Gam³

et al. 2013

Afr. J. Microbiol. Res.

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“…Representa la mayor fuente energética y la base para la obtención de materias primas para la industria. Su explotación, transporte y refinación generan problemas ambientales, especialmente por derrames accidentales y de prácticas inadecuadas de eliminación de fuentes, como industrias y refinerías de petróleo (2,4,5,6).…”

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Aislamiento de bacterias potencialmente degradadoras de petróleo en hábitats de ecosistemas costeros en la Bahía de Cartagena, Colombia

Jaramillo¹,

Paba

Ospino³

2010

nova

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En esta investigación se aislaron bacterias de 4 hábitats en el ecosistema marino aledaño a una industria petroquímica en la Bahía de Cartagena. En el proceso, las muestras se sometieron a pre-enriquecimiento por una semana, a enriquecimiento por tres semanas y a un proceso de selección de cepas competitivas, donde se evidenciaron cambios marcados en las propiedades del crudo de petróleo, como en turbidez y agregados blancos por crecimiento bacteriano. Se aislaron diferentes morfotipos que al caracterizar bioquímicamente fueron identificados como <em>Pseudomonas aeruginosa </em>en todas las muestras, corroborando su gran capacidad de adaptación en ambientes contaminados de este tipo<em>. </em>Estos resultados permitirán la realización de pruebas de biodegradación con esta bacteria y desarrollar ensayos a nivel microcosmos para su uso potencial en procesos de biorremediación de aguas marinas contaminadas con petróleo.

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Removal efficiency of heavy oil by free and immobilised microorganisms on laboratory‐scale

et al. 2011

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This study explored free and immobilised microorganisms to degrade heavy oil. Two oil-degrading bacterial strains (W-1 and W-2) were isolated from heavy oil wastewater samples collected from Shengli Oil Field in China. W-1 and W-2, identified as Rhosococcus sp. and Bacillus cereus sp., respectively, were tested for their growth behaviour and optimal growth conditions in the laboratory. The obtained results showed that the optimal growth conditions for W-1 and W-2 were identified as pH of 8, temperature of 40 • C, and salinity of 2% and 4%, respectively. The environmental conditions affecting oil-degrading efficiency by W-1 and W-2 were optimised in the media containing 0.3% heavy oil. The results showed that the optimal degradation and optimal growth conditions were similar, and the oil degradation rates of W-1 and W-2 were about 34.6% and 45.3%, respectively after 5 days. W-1 and W-2 capable of degrading oil was immobilised in calcium alginate gel beads containing active carbon and used for degradation of heavy oil. The heavy oil biodegradability of immobilised bacteria improved dramatically, compared with that of the free ones. The heavy oil biodegradation rates of immobilised W-2 were found to be maximal at the same optimal growth conditions of pH, temperature, and salinity as the free ones. The best biodegradation rate of immobilised W-2 reached above 78%, which is 33% than that of the free W-2.

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Predominant culturable crude oil-degrading bacteria in the coast of Kuwait

Cited by 67 publications

References 40 publications

Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Diversity of culturable aerobic bacteria colonizing four petroleum by-products storage reservoirs

Aislamiento de bacterias potencialmente degradadoras de petróleo en hábitats de ecosistemas costeros en la Bahía de Cartagena, Colombia

Removal efficiency of heavy oil by free and immobilised microorganisms on laboratory‐scale

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