Evaluation Of Biological And Enzymatic Quorum Quencher Coating Additives To Reduce Biocorrosion Of Steel

Huang, Siqian; Bergonzi, Celine; Schwab, Michael; Elias, Mikael; Hicks, Randall E.

doi:10.1371/journal.pone.0217059

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Evaluation Of Biological And Enzymatic Quorum Quencher Coating Additives To Reduce Biocorrosion Of Steel

2019
Datasets Available
By Huang, Siqian ; Bergonzi, Celine ; Schwab, Michael ; ...
Source: PLOS ONE, 14(5), 18

[PDF-2.23 MB]

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Details:

Alternative Title:

Evaluation of biological and enzymatic quorum quencher coating additives to reduce biocorrosion of steel
Journal Title:

PLOS ONE
Personal Author:

Huang, Siqian ; Bergonzi, Celine ; Schwab, Michael ; Elias, Mikael ; Hicks, Randall E.

Huang, Siqian ; Bergonzi, Celine ; Schwab, Michael ; Elias, Mikael ; Hicks, Randall E. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; Sea Grant

OAR (Oceanic and Atmospheric Research) ; Sea Grant Less -
Sea Grant Program:

MINNU (Minnesota Sea Grant)
Description:

Microbial colonization can be detrimental to the integrity of metal surfaces and lead to microbiologically influenced corrosion (MIC). Biocorrosion is a serious problem for aquatic and marine industries in the world. In Minnesota (USA), where this study was conducted, biocorrosion severely affects the maritime transportation industry. The anticorrosion activity of a variety of compounds, including chemical (magnesium peroxide) and biological (surfactin, capsaicin, and gramicidin) molecules were investigated as coating additives. We also evaluated a previously engineered, extremely stable, non-biocidal enzyme known to interfere in bacterial signaling, SsoPox (a quorum quenching lactonase). Experimental steel coupons were submerged in water from the Duluth Superior Harbor (DSH) for 8 weeks in the laboratory. Biocorrosion was evaluated by counting the number and the coverage of corrosion tubercles on coupons and also by ESEM imaging of the coupon surface. Three experimental coating additives significantly reduced the formation of corrosion tubercles: surfactin, magnesium peroxide and the quorum quenching lactonase by 31%, 36% and 50%, respectively. DNA sequence analysis of the V4 region of the bacterial 16S rRNA gene revealed that these decreases in corrosion were associated with significant changes in the composition of bacterial communities on the steel surfaces. These results demonstrate the potential of highly stable quorum quenching lactonases to provide a reliable, cost-effective method to treat steel structures and prevent biocorrosion.
Keywords:

[+]

Bacteria Biofilms Corrosion And Anti-corrosives Iron Science Technology
Source:

PLOS ONE, 14(5), 18
DOI:

https://doi.org/10.1371/journal.pone.0217059
Pubmed Central ID:

PMC6522020
Document Type:

Journal Article
Funding:

Grant no. NA14OAR4170080
Place as Subject:

Minnesota
Rights Information:

CC BY
Compliance:

PMC
Main Document Checksum:

[+]

urn:sha256:734305c0c85600a71d022cc23cf5496fa7363720693e8bdf12290467cc0de3b7
Download URL:

https://repository.library.noaa.gov/view/noaa/24452/noaa_24452_DS1.pdf
File Type:

	S1 Table	docx
	S2 Table	docx
	S3 Table	docx
	SAMN09580244	htm

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