New evidence on the role of catalase in Escherichia coli-mediated biocorrosion

Baeza, Sergio; Vejar, Nelson; Gulppi, Miguel; Azócar, Manuel; Melo, Francisco; Monsalve, Alberto; Pérez-Donoso, José M.; Vásquez, Claudio C.; Pavez, Jorge; Zagal, José H.; Zhou, Xiaorong; Thompson, G.E.; Páez, Maritza

doi:10.1016/j.corsci.2012.09.047

Cited by 37 publications

(24 citation statements)

References 21 publications

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“…The mechanisms of Pseudomonas associated with copper corrosion are related to the capacity of the biofilm formation and its enzymatic activity. Regarding the latter, Pseudomonas has both oxidase and catalase activity, which generate a constant cycle of oxygen renewal on the surface of a copper pipe, thereby promoting an increase in the cathodic current and thus an increase in the overall corrosion process [54][55][56]. Our results suggest that Pseudomonas form the main core of biofilm owing to their prevalence and other characteristics.…”

Section: Microbial Community Analysesmentioning

confidence: 75%

“…However, the Acidovorax phylotype has shown a positive influence on copper corrosion and the formation of EPS [73]. The secretion of EPS and enzymes creates a hospitable zone for the establishment of areas with different potentials, thereby promoting an increase in the cathodic current and, thus, an increase in the overall corrosion process [29,54]. The type of enzyme secreted is more relevant in stress events because under such conditions, the hydrogen peroxide (H 2 O 2 ) concentration increases, which triggers the secretion of catalase or peroxidase.…”

Section: Microbial Community Analysesmentioning

confidence: 99%

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Dynamics of Biocorrosion in Copper Pipes under Actual Drinking Water Conditions

Galarce

Fischer

Dı́ez

et al. 2020

Water

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Deficient disinfection systems enable bacteria to form in drinking water; these can invade plumbing systems even if the pipes are composed of antibacterial materials such as copper. Severe copper corrosion by microorganisms and their subsequent release into the water system are evidenced by the blue water phenomenon. Proper monitoring and control can reduce such undesirable effects on water quality. However, a lack of data from analysis under actual conditions has limited the development of useful predictive tools and preventive strategies. In this work, an experimental aging system was connected to a drinking water network affected by the blue water phenomenon. The microbially influenced corrosion (MIC) was evaluated by studying the dynamics of the formed bacterial community and its relationship with copper corrosion and the release of copper. The results suggest that the conformation and composition of the biofilm attached to the surface influence the measured parameters. The corrosion rate was variable throughout the sampling time, with the highest value recorded after one year of aging. The composition of biofilms also changed with time; however, the genus Pseudomonas was ubiquitous over the sampling time. No relationship between the corrosion rate and the biofilm age was observed, thereby suggesting that MIC is a dynamic phenomenon that requires further study.

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Section: Microbial Community Analysesmentioning

confidence: 75%

Section: Microbial Community Analysesmentioning

confidence: 99%

Dynamics of Biocorrosion in Copper Pipes under Actual Drinking Water Conditions

Galarce

Fischer

Dı́ez

et al. 2020

Water

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“…have caused the increase in corrosion rate of 304 SS in dilute NB [19] and nutrient-rich simulated seawater [20]. Pure cultures of Escherichia coli (E. coli) has also been reported to increase the rates of corrosion of carbon steel and stainless steel [21,22].…”

Section: Introductionmentioning

confidence: 99%

Biocidal Behaviour of (Dodecyltrimethylammonium Bromide) on Carbon Steel in Well Water

Kasilingam

Thangavelu

2015

Trans Indian Inst Met

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The inhibition of corrosion of carbon steel in well water using diethylenetriamine penta (methylene phosphonic acid) (DETPMP), Zinc ions and dodecyltrimethylammonium bromide (DTAB) was investigated using weight-loss measurement, electrochemical polarization and impedance methods. Inhibition efficiency of above ternary inhibitor reaches maximum values at 93 %. The biocidal efficiency of DTAB was studied which reaches maximum of 88 % at 125 ppm DETPMP, 10 ppm Zn 2? and 150 ppm DTAB. The shape of DC polarization profile revealed the new ternary system which acts as anodic type inhibitor. AC impedance spectroscopic studies indicated the formation of a protective film onto the metal surface in the presence of inhibitors. Analyses of the protective film using scanning electron microscope, energy dispersive X-ray analysis, atomic force microscopy and Fourier transfer infrared spectroscopy have revealed that the film consists of Zn(OH) 2 , oxides and hydroxides of iron and the inhibitor molecules in the form of a complex.

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“…As shown in the figure, both the anodic and cathodic current densities increased obviously in the presence of A. niger compared with in the absence of A. niger at 2 h, but 240 h, the cathodic current densities did not change obviously and only tiny increase in the anodic current densities was observed in the presence of A. niger compared with in the absence of A.niger. This indicated that A. niger accelerated the corrosion of AZ31B magnesium alloy significantly at the initial stages and then the acceleration attenuated.Acceleration of the corrosion rate might depend on fungi adhered on the surface of AZ31B magnesium alloy, or it might depend on the continued accumulation of metabolic products[10,28]. The retarding corrosion at the later stages could be mainly attributed to the nutritional deficiency because A. niger consumed the nutrients in solutions but the fresh medium was not renewed in our studies.…”

mentioning

confidence: 96%

Effect of the fungus, Aspergillus niger , on the corrosion behaviour of AZ31B magnesium alloy in artificial seawater

Wang

et al. 2015

Corrosion Science

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New evidence on the role of catalase in Escherichia coli-mediated biocorrosion

Cited by 37 publications

References 21 publications

Dynamics of Biocorrosion in Copper Pipes under Actual Drinking Water Conditions

Dynamics of Biocorrosion in Copper Pipes under Actual Drinking Water Conditions

Biocidal Behaviour of (Dodecyltrimethylammonium Bromide) on Carbon Steel in Well Water

Effect of the fungus, Aspergillus niger , on the corrosion behaviour of AZ31B magnesium alloy in artificial seawater

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