Effect of extracellular polymeric substances isolated from<i>Vibrio natriegens</i>on corrosion of carbon steel in seawater

Dong, Yunqiao; Guo, Na; Liu, T.; Dong, Lihua; Yin, Yan Sheng

doi:10.1080/1478422x.2016.1139319

Cited by 9 publications

(7 citation statements)

References 35 publications

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“…Also other high molecular weight molecules such as proteins, nucleic acids and lipids which are produced for biofilm formation (Wingender et al, 1999) may impact the rheology of the medium. These extracellular polymeric substances were already identified in a biofilm formed by V. natriegens on steel in sea water (Dong et al, 2016). However, in our planktonic cultures we could not determine the presence of significant amounts of protein using the Bradford assay with bovine serum albumin as standard.…”

Section: Discussionmentioning

confidence: 86%

Investigation of exopolysaccharide formation and its impact on anaerobic succinate production with Vibrio natriegens

Schulze

Hädrich

Borger

et al. 2023

Microbial Biotechnology

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Vibrio natriegens is an emerging host for biotechnology due to its high growth and substrate consumption rates. In industrial processes typically fed‐batch processes are applied to obtain high space‐time yields. In this study, we established an aerobic glucose‐limited fed‐batch fermentation with the wild type (wt) of V. natriegens which yielded biomass concentrations of up to 28.4 gX L−1. However, we observed that the viscosity of the culture broth increased by a factor of 800 at the end of the cultivation due to the formation of 157 ± 20 mg exopolysaccharides (EPS) L−1. Analysis of the genomic repertoire revealed several genes and gene clusters associated with EPS formation. Deletion of the transcriptional regulator cpsR in V. natriegens wt did not reduce EPS formation, however, it resulted in a constantly low viscosity of the culture broth and altered the carbohydrate content of the EPS. A mutant lacking the cps cluster secreted two‐fold less EPS compared to the wt accompanied by an overall low viscosity and a changed EPS composition. When we cultivated the succinate producer V. natriegens Δlldh Δdldh Δpfl Δald Δdns::pycCg (Succ1) under anaerobic conditions on glucose, we also observed an increased viscosity at the end of the cultivation. Deletion of cpsR and the cps cluster in V. natriegens Succ1 reduced the viscosity five‐ to six‐fold which remained at the same level observed at the start of the cultivation. V. natriegens Succ1 ΔcpsR and V. natriegens Succ1 Δcps achieved final succinate concentrations of 51 and 46 g L−1 with a volumetric productivity of 8.5 and 7.7 gSuc L−1 h−1, respectively. Both strains showed a product yield of about 1.4 molSuc molGlc−1, which is 27% higher compared with that of V. natriegens Succ1 and corresponds to 81% of the theoretical maximum.

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Section: Discussionmentioning

confidence: 86%

Investigation of exopolysaccharide formation and its impact on anaerobic succinate production with Vibrio natriegens

Schulze

Hädrich

Borger

et al. 2023

Microbial Biotechnology

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“…EPS can adsorb on the metal surface and form a biofilm, which acts as a protective layer, hinders the transmission of oxygen, and separates a metal surface from a corrosive environment, thus, metal corrosion is inhibited [ 53 , 54 , 124 , 125 , 126 , 127 ]. The negatively charged functional groups in EPS, such as -NH 2 , -COOH, -C-O-C, and -OH, first adsorb positively charged metal ions to form complexes.…”

Section: Eps and Biocorrosionmentioning

confidence: 99%

“…Existing studies have found that some functional groups in EPS will complex metal ions (iron ions, copper ions, etc.) and, thus, accelerate the dissolution of the anode causing corrosion [ 53 , 54 ]. However, there are also studies showing that the attachment of EPS has an inhibitory effect on the corrosion of a metal, mainly because EPS adsorb on the surface of a material and form a protective film.…”

Section: Introductionmentioning

confidence: 99%

Extracellular Polymeric Substances and Biocorrosion/Biofouling: Recent Advances and Future Perspectives

Wang

Zhang

Duan

et al. 2022

IJMS

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Microbial cells secrete extracellular polymeric substances (EPS) to adhere to material surfaces, if they get in contact with solid materials such as metals. After phase equilibrium, microorganisms can adhere firmly to the metal surfaces causing metal dissolution and corrosion. Attachment and adhesion of microorganisms via EPS increase the possibility and the rate of metal corrosion. Many components of EPS are electrochemical and redox active, making them closely related to metal corrosion. Functional groups in EPS have specific adsorption ability, causing them to play a key role in biocorrosion. This review emphasizes EPS properties related to metal corrosion and protection and the underlying microbially influenced corrosion (MIC) mechanisms. Future perspectives regarding a comprehensive study of MIC mechanisms and green methodologies for corrosion protection are provided.

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“…Several studies have shown that EPS promotes corrosion, however, researchers also have shown beneficial microorganisms attached to metal surfaces interact with the liquid flow environment (Dong et al 2016, Li et al 2019a, Suma et al 2019) forming a biofilm on the surface of the metal. This microbiologically influenced corrosion inhibition (MICI) may protect carbon steel surfaces by inhibiting corrosion and be used as an alternative method to combat corrosion (Xu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Role of Pseudomonas fluorescens FSYZ01 on the corrosion behavior of Q235B carbon steel in oilfield produced water

Liang

Ren

Tian³

et al. 2023

Environ Sci Pollut Res

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The corrosion behavior of Q235B carbon steel is investigated in water, LB medium and oilfield produced water adding Pseudomonas fluorescens FSYZ01. After immersion for 13-days, weight loss of carbon steel with this strain decreased by 32.23%, 54.07%, and 78.34% respectively. XRD results show Pseudomonas fluorescens FSYZ01 inhibited conversion of iron oxides by hindering oxygen from approaching metal surface.FT-IR and XPS results show that specific functional groups and bonds reacted with Fe(II/III) to form a dense and stable chelate-oxide protective layer, thereby inhibiting corrosion. Py-GCMS results demonstrate the bacteria degraded C12 to C20 alkanes in oil.The inhibitory mechanism of crude oil degrading bacteria Pseudomonas fluorescens FSYZ01 on the carbon steel corrosion was proposed, so as to slowing corrosion of oilfield produced water system pipeline and prolonging its service life, helping to comprehend the microbial corrosion in the actual environment.

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Effect of extracellular polymeric substances isolated fromVibrio natriegenson corrosion of carbon steel in seawater

Cited by 9 publications

References 35 publications

Investigation of exopolysaccharide formation and its impact on anaerobic succinate production with Vibrio natriegens

Investigation of exopolysaccharide formation and its impact on anaerobic succinate production with Vibrio natriegens

Extracellular Polymeric Substances and Biocorrosion/Biofouling: Recent Advances and Future Perspectives

Role of Pseudomonas fluorescens FSYZ01 on the corrosion behavior of Q235B carbon steel in oilfield produced water

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