Bio-removal of diesel oil through a microbial consortium isolated from a polluted environment

Silva, Débora de Souza Pereira; Cavalcanti, David; Melo, Erik Jonne Vieira de; Santos, Patrícia Nazaré Ferreira dos; Luz, Edja Lillian Pacheco da; Gusmão, Norma Buarque de; Sousa, Maria de Fátima Vieira de Queiroz

doi:10.1016/j.ibiod.2014.09.021

Cited by 41 publications

(13 citation statements)

References 24 publications

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“…The bioaugmentation approach consists of the addition to soil of selected microbial species able to metabolize a specific contaminant: exogenous strains derived from contaminated sites, genetically modified microorganisms and indigenous biomass enriched in the presence of the contaminant. A well‐established technique is the addition of degraders that have previously been isolated from other polluted environments . Thompson et al recommended a rational selection among the members of the same species to obtain culture collections that would be suitable for specific contaminant and environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

“…A well-established technique is the addition of degraders that have previously been isolated from other polluted environments. [16][17][18] Thompson et al 19 recommended a rational selection among the members of the same species to obtain culture collections that would be suitable for specific contaminant and environmental conditions. The prior adaptation of microorganisms to a contaminant is considered a fundamental step to improve the survival possibilities and bioaugmentation success, but even in this case many other factors such as the homogeneous dispersion of added degraders and their competition with indigenous microorganisms can lead to unsatisfactory results.…”

Section: Introductionmentioning

confidence: 99%

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Microcosm evaluation of bioaugmentation and biostimulation efficacy on diesel‐contaminated soil

Bosco

Casale

Mazzarino

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Diesel oil broad utilization has led to its dispersion in the environment. In this work, biostimulation and biostimulation coupled with autochthonous bioaugmentation were investigated for the bioremediation of soil artificially contaminated with diesel oil. RESULTS Soil microcosms were prepared and monitored. The most effective strategy and the influence of glucose addition, both in soil or during the biomass ‘enrichment’ phase, were evaluated by means of respirometric analyses, microbial counts and residual contaminant concentration measurements. The respirometric activity was always higher in all microcosms contaminated with diesel oil than in the biotic controls. The presence of the contaminant did not inhibit the microbial activity. The microbial counts performed on diesel oil medium showed that the contaminant was prevalently biodegraded by the indigenous bacterial species. In terms of diesel oil degradation, similar results were obtained in biostimulated and bioaugmented microcosms; a degradation percentage in the range 65–70% after 34 days was achieved. The addition of glucose in soil, though favoring the growth of microorganisms, did not improve the degradation of contaminant. CONCLUSION In this work, biostimulation, with no addition of a primary substrate, was the simplest and most cost‐effective strategy for the biodegradation of diesel oil. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microcosm evaluation of bioaugmentation and biostimulation efficacy on diesel‐contaminated soil

Bosco

Casale

Mazzarino

et al. 2019

J of Chemical Tech & Biotech

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“…The growth of the two Pseudomonas strains isolated in this study was investigated in BH medium which is widely used for the examination of fuels for microbial contamination and for studying hydrocarbon degradation by microorganisms (Silva et al, 2015;Gudiña et al, 2012). Both strains G2 and G3 were able to grow in BH mineral medium with either diesel fuel or SAE 90 gear oil as the sole source of carbon.…”

Section: Discussionmentioning

confidence: 99%

Isolation and characterization of petroleum product emulsifying Pseudomonas strains from a generating set fuel tank

Lebonguy¹,

Goma-Tchimbakala²,

Miambi³

et al. 2017

Afr. J. Microbiol. Res.

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This study characterized microbial strains isolated from diesel fuel samples collected from the tank of a generating set at the Institute of Research for Development in Pointe-Noire (Congo). Two bacterial isolates (G2 and G3) were distinguished by their color on agar plates and were characterized by their API 20E biochemical profiles and by 16S rRNA gene sequencing. The phenotypic properties of these isolates were consistent with their assignment to the genus Pseudomonas. Comparative 16S rRNA gene sequence analysis demonstrated that the G2 and G3 isolates were close relatives of P. aeruginosa strain GIM 32 and P. aeruginosa strain NV2, respectively, with 97% sequence identity. These two P. aeruginosa strains were able to grow in a mineral salt medium supplemented with 2% diesel fuel or SAE 90 gear oil as the only source of carbon. P. aeruginosa G3 showed faster growth and was able to emulsify diesel fuel (53%), gasoline (90%) and hexane (95%) more strongly than P. aeruginosa G2.

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“…This superior activity of the consortium could be due to a synergistic effect of the pooled genotypes. Silva et al (2015) reported that a microbial consortium consisting of bacteria and yeasts from a polluted environment showed a high ability to degrade diesel oil constituents, and the maintenance of appropriate conditions leads to the transformation of this oily source into less toxic compounds. Luo et al (2009) have also shown that dominant benzo[a]pyrene-degrading bacteria isolated from a marine enrichment showed a faster degradation when the three strains (Ochrabactrum, Stenotrophomonas and Pseudomonas spp.)…”

Section: Discussionmentioning

confidence: 99%

Biodegradation of engine oil by fungi from mangrove habitat

Ameen

Hadi

Moslem

et al. 2015

J. Gen. Appl. Microbiol.

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Bio-removal of diesel oil through a microbial consortium isolated from a polluted environment

Cited by 41 publications

References 24 publications

Microcosm evaluation of bioaugmentation and biostimulation efficacy on diesel‐contaminated soil

Microcosm evaluation of bioaugmentation and biostimulation efficacy on diesel‐contaminated soil

Isolation and characterization of petroleum product emulsifying Pseudomonas strains from a generating set fuel tank

Biodegradation of engine oil by fungi from mangrove habitat

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