Kinetics of petroleum oil biodegradation by a consortium of three protozoan isolates ( Aspidisca sp., Trachelophyllum sp. and Peranema sp.)

Kachieng’a, L.; Momba, Maggy Ndombo Benteke

doi:10.1016/j.btre.2017.07.001

Cited by 38 publications

(17 citation statements)

References 24 publications

(36 reference statements)

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“…Degradation decreased with increasing concentration perhaps due to the toxicity of the crude oil in the medium (Farag et al, 2018). A similar finding was also reported by Kachieng and Momba (2017). Dibble and Bartha (1979) reported increases in biodegradation as indicated by increases in CO2 evolution in soil polluted with 5% crude oil.…”

Section: Effect Of Crude Oil Concentration On Biodegradation Of Bonnysupporting

confidence: 83%

Assessment of Crude Oil Degradation by Mixed Culture of Bacillus subtilis and Pseudomonas aeruginosa at Different Concentrations

et al. 2020

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Petroleum hydrocarbon (PHCs) contamination of soil, freshwater and air is of global concern. The aim of this study was to assess the extent of crude oil degradation by mixed bacterial culture of different crude oil concentrations using gas chromatography-mass spectrometry (GC-MS). Seven oil samples were collected from petroleum-contaminated fields in Kano state, Nigeria, and screened for crude oil utilizing bacteria. A control sample of soil from an ecological garden (control soil) was also analyzed. Crude oil-degrading bacteria were isolated, enumerated and identified using cultural, morphological and biochemical characteristics, and screened for their ability to utilize Bonny Light Oil as a source of carbon and energy. Bacteria with the highest potential to utilize crude oil were selected and subjected to bioremediation studies at three different pollution levels (5%, 10% and 15%) for 56 days. The residual crude oil was assessed using GC-MS. The results revealed that the mixed culture completely degraded eighteen components ranging from C10 to C25 at 5% crude oil concentration while only C8 to C11 and C8 to C9 were degraded at 10 and 15% respectively. The results of this study indicated the potential of B. subtilis and P. aeruginosa in bioremediation of crude oil contaminated soil.

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Section: Effect Of Crude Oil Concentration On Biodegradation Of Bonnysupporting

confidence: 83%

Assessment of Crude Oil Degradation by Mixed Culture of Bacillus subtilis and Pseudomonas aeruginosa at Different Concentrations

et al. 2020

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“…Thus, rate constant was the highest in consortium 3 (1.713 day −1 , t 1/2 = 0.404) followed by consortium 2 (1.469 day −1 , t 1/2 = 0.463) and consortium 1 (0.653 day −1 , t 1/2 = 1.06) in a decreasing order. Kachieng'a and Momba [41] reported that the highest rate constant of 1.11 day −1 was observed for a consortium consisting of three different protozoa. In a similar study, the reaction rate constants of Pseudomonas pseudoalcaligenes, Bacillus megaterium and Xanthobacter autotrophicus were 0.0189, 0.0324 and 0.0324 day −1 , respectively.…”

Section: Evaluation Of Growth Intensities and Petroleum Biodegradatiomentioning

confidence: 98%

“…The kinetics of biodegradation processes depend on the rate and improvement in the effective degradation of petroleum [41]. According to biodegradation efficiencies of consortia, the specific degradation rates of consortium 1, consortium 2 and consortium 3 were 0.068, 0.110 and 0.117, per day, respectively.…”

Section: Evaluation Of Growth Intensities and Petroleum Biodegradatiomentioning

confidence: 99%

Comparison of petroleum biodegradation efficiencies of three different bacterial consortia determined in petroleum-contaminated waste mud pit

Özyürek

Bilkay

2020

SN Appl. Sci.

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The objectives of this study were to determine and compare the petroleum biodegradation efficiencies of three different bacterial consortia adapted to oil field. For this purpose, petroleum-contaminated waste mud sample was enriched in Bushnell Haas medium with 1% petroleum. Six different bacterial strains (four Gram-positive and two Gram-negative) were isolated from the enriched sample, and bacterial strains were identified with phenotypic and genotypic analyses. Each bacterial strain was evaluated in terms of biodegradation capacities by colorimetric analysis with the DCPIP redox indicator. Petroleum biodegradation efficiencies of three different consortia were investigated by gravimetric and GC-MS analyses. Consortium 1, consisting of Bacillus subtilis, Leuconostoc mesenteroides, Bacillus halotolerans, Enterococcus casseliflavus; consortium 2, consisting of Klebsiella pneumoniae and Pannonibacter phragmitetus; consortium 3, consisting of Bacillus subtilis, Leuconostoc mesenteroides, Bacillus halotolerans, Enterococcus casseliflavus, Klebsiella pneumoniae and Pannonibacter phragmitetus, were used in petroleum biodegradation. According to the results of gravimetric analysis, biodegradation of petroleum was 48%, 77% and 82% for consortium 1, consortium 2 and consortium 3, respectively. The results of GC-MS analysis revealed that removal of long-chain n-alkanes (C 23-C 32) was in the range of 35-58% by consortium 1; 56-67% by consortium 2; and 63-74% by consortium 3. It was emphasized that consortium 2 was more effective in biodegradation of petroleum than consortium 1. This study clearly demonstrated that consortium 3 is most effective in biodegradation of petroleum. This is assumed to be due to the synergistic effect between Gram-positive and Gram-negative bacterial strains. Furthermore, consortium 3 has been found to be very successful despite the shorter incubation period compared to other consortia in the literature. In this context, it is believed that the use of consortium 3 will contribute to the bioremediation of petroleum on a large scale.

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“…The growth of microorganisms in stressful conditions can be stimulated by addition of easily assimilated carbon and nitrogen sources 8 . Bioremediation offers benefits such as economy, reliability and eco-friendly nature over the physicochemical methods 9 .…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Bacteria from Refinery Effluent for Degradation of Petroleum Crude Oil in Seawater

Goveas¹,

Krishna²,

Salian³

et al. 2020

J. Pure Appl. Microbiol.

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Petroleum crude oil is transported on a global scale through marine vessels and barges by the sea route. Oil spills into the marine environment are known to cause long term effects on the health of marine life and human beings in addition to harming the eco-system. In this study, petroleum refinery effluent samples were collected and analyzed for their physico-chemical properties. Thirty two bacterial strains were isolated by direct isolation and post enrichment in crude oil. Among these, fourteen isolates could utilize petroleum hydrocarbons as sole carbon source on Bushnell Hass Agar plates supplemented with crude oil within 2 days. Out of these fourteen strains, four could decolorize 2,6-dichlorophenol indophenol within 36 h completely. They were identified as Bacillus cereus WD22, Pseudomonas aeruginosa WD23 and WDE11 (2 strains) and Acinetobacter baumannii OCB1 by 16sRNA sequencing. All four strains could tolerate salinity up to 4.0%w/v. The reduction in total petroleum hydrocarbons in sea water spiked with crude oil (1.0%v/v) supplemented with trace amounts of glucose and yeast extract was studied by gravimetric analysis. P. aeruginosa WD23 degraded 27.25% of supplied petroleum crude oil under limited nutrient conditions in seawater in 15 days.

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Kinetics of petroleum oil biodegradation by a consortium of three protozoan isolates ( Aspidisca sp., Trachelophyllum sp. and Peranema sp.)

Cited by 38 publications

References 24 publications

Assessment of Crude Oil Degradation by Mixed Culture of Bacillus subtilis and Pseudomonas aeruginosa at Different Concentrations

Assessment of Crude Oil Degradation by Mixed Culture of Bacillus subtilis and Pseudomonas aeruginosa at Different Concentrations

Comparison of petroleum biodegradation efficiencies of three different bacterial consortia determined in petroleum-contaminated waste mud pit

Isolation and Characterization of Bacteria from Refinery Effluent for Degradation of Petroleum Crude Oil in Seawater

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