Characterization of corrosive bacterial consortia isolated from petroleum-product-transporting pipelines

Rajasekar, Aruliah; Anandkumar, B.; Maruthamuthu, S.; Ting, Yen‐Peng; Rahman, Pattanathu

doi:10.1007/s00253-009-2289-9

Cited by 161 publications

(105 citation statements)

References 32 publications

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“…It has been reported that it can also accumulate heavy metal (Fang et al, 2010;Kanaly et al, 2000;Turgay et al, 2012;Rajasekar et al, 2010), grow on explosives such as pentaerythritol tetranitrate (PETN) and 2,4,6-trinitrotoluene (TNT) as sole nitrogen source (Binks et al, 1996;French et al, 1998) and it can decontaminate water from herbicides (Chena et al, 2009;Sakultantimetha et al, 2001;Ngigi et al, 2012). Also, this microorganism has been isolated from materials contaminated with crude oil.…”

Section: Molecular Identificationmentioning

confidence: 99%

“…However, other researchers have reported the isolation and ability of this microorganism to grow and degrade crude oils, which are rich in alkanes . Rajasekar et al (2010) reported the isolation of K. oxytoca in diesel and naphtha pipelines in the Northwest and Southwest regions in India. They have also isolated other 10 bacteria (Serratia marcescens ACE2, Bacillus subtilis AR12, Bacillus cereus ACE4, Pseudomonas aeruginosa AI1, Pseudomonas stutzeri AP2, Bacillus litoralis AN1, Bacillus sp., Bacillus pumilus AR2, Bacillus carboniphilus AR3 and Bacillus megaterium AR4).…”

Section: Molecular Identificationmentioning

confidence: 99%

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So Paulo Zoo composting as a source of bacteria with bioremediation potential

Elisangela¹,

Renata²,

Marcelo³

2013

Afr. J. Microbiol. Res.

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As the world population increases, the need for energy resources increases and for decades, petroleum has sustained this demand. Oil spill during petroleum extraction and processing has a negative impact on the environment. Methods that can decrease the impact of xenobiotic compounds on the environment have been developed. Among many bioremediation methods described, microbial remediation is of great importance. Our previous work demonstrated that Organic Waste Composting Unit (OWCU) located at the São Paulo Zoo Foundation (FPZSP) had a great diversity of microorganism. In the present work, we viewed this environment searching for xenobiotic degrading microorganisms by sampling the composting at various stages of the process with the aim of isolating the bacteria that would break down n-hexadecane, a model compound for hydrocarbon degradation. Two bacterial collections were assembled and tested in a 96-well plate model using n-hexadecane as a sole carbon source. Among the 418 isolates screened, eight were selected based on their ability to assimilate nhexadecane. Molecular identification revealed their genus and species which are associated with xenobiotic degradation activities in different microbial consortia. However, these microorganisms have not being isolated from the same transforming process. Future studies with these isolates may shed light on the bacteria hydrocarbon degradation mechanism.

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Section: Molecular Identificationmentioning

confidence: 99%

Section: Molecular Identificationmentioning

confidence: 99%

So Paulo Zoo composting as a source of bacteria with bioremediation potential

Elisangela¹,

Renata²,

Marcelo³

2013

Afr. J. Microbiol. Res.

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“…Migration was assessed qualitatively by examining the circular zone from the point of inoculation (streaking point) formed on the plates. Surface hydrophobicity of the EN2 was assessed by microbial adhesion to solvents (MATS) method following the protocol of Bellone-Fontaine et al [29]. This method is based on the comparison of microbial cell affinity to polar and non-polar solvents (chloroform, hexadecane, ethyl acetate and decane).…”

Section: Biofilm Motility Assay and Surface Characteristics Of Bacteriamentioning

confidence: 99%

“…Collected corrosion products were crushed into a fine powder and used for FTIR analysis. For bacterial curve, the biofilm formed on coupons from each system was scraped and the total viable count was measured by standard plate count method [29].…”

Section: Biocorrosion Studymentioning

confidence: 99%

Role of Bacterial Plasmid on Biofilm Formation and Its Influence on Corrosion of Engineering Materials

et al. 2016

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Bacterial plasmids are involved in biofilm formation, degradation of hydrocarbons and biosynthesis of antibiotics in extreme environments. A number of intercalating compounds have been reported to be used for curing the plasmids in various bacterial species, since they act as inhibitors during plasmid replication by selectively binding to the plasmid DNA. In this research, we investigated the influence of bacterial plasmid on biofilm formation on metal surface and corrosion of engineering metals, such as mild steel (MS), stainless steel (SS) and brass (BS). The biocorrosion behaviour of Bacillus thuringiensis EN2 wild and cured strain was studied using immersion tests based on the weight loss method, electrochemical analysis and surface analysis techniques (FTIR spectroscopy). The plasmid cured strain EN2 was unable to form biofilm, showing significantly less corrosion over all the tested metal surfaces. On the contrary, the presence of plasmid led to higher corrosion rate (0.18, 10.3 and 91.5 mm/year) and surface hydrophobicity for MS, SS and BS. Overall, it can be concluded that the plasmid gene was found to be responsible for the biofilm formation, which determines the corrosion rate of metals.

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“…One consequence of the ability of microorganism to oxidize metals is biocorrosion. Biocorrosion of metals and their alloys can occur whether they are submerged in water, buried in soil or exposed to the atmosphere; this is because the microorganisms that cause biodeterioration are widely distributed (Rajasekar et al, 2010). as pipelines, cooling circuits, production lines, injections lines and storage tanks.…”

Section: Introductionmentioning

confidence: 99%