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Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids

Microbiologically influenced corrosion (MIC) is a major problem in the oil and gas industry as well as in many other industries. Current treatment methods rely mostly on pigging and biocide dosing. Biocide resistance is a growing concern. Thus, it is desirable to use biocide enhancers to improve the...

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Autores principales: Li, Yingchao, Jia, Ru, Al-Mahamedh, Hussain H., Xu, Dake, Gu, Tingyue
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4904036/
https://www.ncbi.nlm.nih.gov/pubmed/27379039
http://dx.doi.org/10.3389/fmicb.2016.00896
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author Li, Yingchao
Jia, Ru
Al-Mahamedh, Hussain H.
Xu, Dake
Gu, Tingyue
author_facet Li, Yingchao
Jia, Ru
Al-Mahamedh, Hussain H.
Xu, Dake
Gu, Tingyue
author_sort Li, Yingchao
collection PubMed
description Microbiologically influenced corrosion (MIC) is a major problem in the oil and gas industry as well as in many other industries. Current treatment methods rely mostly on pigging and biocide dosing. Biocide resistance is a growing concern. Thus, it is desirable to use biocide enhancers to improve the efficacy of existing biocides. D-Amino acids are naturally occurring. Our previous work demonstrated that some D-amino acids are biocide enhancers. Under a biocide stress of 50 ppm (w/w) hydroxymethyl phosphonium sulfate (THPS) biocide, 1 ppm D-tyrosine and 100 ppm D-methionine used separately successfully mitigated the Desulfovibrio vulgaris biofilm on carbon steel coupons. The data reported in this work revealed that 50 ppm of an equimolar mixture of D-methionine, D-tyrosine, D-leucine, and D-tryptophan greatly enhanced 50 ppm THPS biocide treatment of two recalcitrant biofilm consortia containing sulfate reducing bacteria (SRB), nitrate reducing bacteria (NRB), and fermentative bacteria, etc., from oil-field operations. The data also indicated that individual D-amino acids were inadequate for the biofilm consortia.
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spelling pubmed-49040362016-07-04 Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids Li, Yingchao Jia, Ru Al-Mahamedh, Hussain H. Xu, Dake Gu, Tingyue Front Microbiol Microbiology Microbiologically influenced corrosion (MIC) is a major problem in the oil and gas industry as well as in many other industries. Current treatment methods rely mostly on pigging and biocide dosing. Biocide resistance is a growing concern. Thus, it is desirable to use biocide enhancers to improve the efficacy of existing biocides. D-Amino acids are naturally occurring. Our previous work demonstrated that some D-amino acids are biocide enhancers. Under a biocide stress of 50 ppm (w/w) hydroxymethyl phosphonium sulfate (THPS) biocide, 1 ppm D-tyrosine and 100 ppm D-methionine used separately successfully mitigated the Desulfovibrio vulgaris biofilm on carbon steel coupons. The data reported in this work revealed that 50 ppm of an equimolar mixture of D-methionine, D-tyrosine, D-leucine, and D-tryptophan greatly enhanced 50 ppm THPS biocide treatment of two recalcitrant biofilm consortia containing sulfate reducing bacteria (SRB), nitrate reducing bacteria (NRB), and fermentative bacteria, etc., from oil-field operations. The data also indicated that individual D-amino acids were inadequate for the biofilm consortia. Frontiers Media S.A. 2016-06-13 /pmc/articles/PMC4904036/ /pubmed/27379039 http://dx.doi.org/10.3389/fmicb.2016.00896 Text en Copyright © 2016 Li, Jia, Al-Mahamedh, Xu and Gu. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Li, Yingchao
Jia, Ru
Al-Mahamedh, Hussain H.
Xu, Dake
Gu, Tingyue
Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title_full Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title_fullStr Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title_full_unstemmed Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title_short Enhanced Biocide Mitigation of Field Biofilm Consortia by a Mixture of D-Amino Acids
title_sort enhanced biocide mitigation of field biofilm consortia by a mixture of d-amino acids
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4904036/
https://www.ncbi.nlm.nih.gov/pubmed/27379039
http://dx.doi.org/10.3389/fmicb.2016.00896
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