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Molecules 2017, 22(4), 648; doi:10.3390/molecules22040648

Growth Inhibition of Sulfate-Reducing Bacteria in Produced Water from the Petroleum Industry Using Essential Oils

1
Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
2
Instituto de Ciências Biológicas, Universidade Federal do Pará, Pará 66075-900, Brazil
3
Embrapa, Agroindústria de Alimentos, Rio de Janeiro 23020-470 Brazil
4
Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, Sergipe 49.100-000, Brazil
5
CENPES/Petrobras, Rio de Janeiro 21941-915, Brazil
6
Grupo Falcão Bauer, São Paulo 05036-070, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Olga Tzakou
Received: 8 March 2017 / Revised: 13 April 2017 / Accepted: 15 April 2017 / Published: 19 April 2017
(This article belongs to the Special Issue Essential Oils: Chemistry and Bioactivity)
View Full-Text   |   Download PDF [423 KB, uploaded 19 April 2017]   |  

Abstract

Strategies for the control of sulfate-reducing bacteria (SRB) in the oil industry involve the use of high concentrations of biocides, but these may induce bacterial resistance and/or be harmful to public health and the environment. Essential oils (EO) produced by plants inhibit the growth of different microorganisms and are a possible alternative for controlling SRB. We aimed to characterize the bacterial community of produced water obtained from a Brazilian petroleum facility using molecular methods, as well as to evaluate the antimicrobial activity of EO from different plants and their major components against Desulfovibrio alaskensis NCIMB 13491 and against SRB growth directly in the produced water. Denaturing gradient gel electrophoresis revealed the presence of the genera Pelobacter and Marinobacterium, Geotoga petraea, and the SRB Desulfoplanes formicivorans in our produced water samples. Sequencing of dsrA insert-containing clones confirmed the presence of sequences related to D. formicivorans. EO obtained from Citrus aurantifolia, Lippia alba LA44 and Cymbopogon citratus, as well as citral, linalool, eugenol and geraniol, greatly inhibited (minimum inhibitory concentration (MIC) = 78 µg/mL) the growth of D. alaskensis in a liquid medium. The same MIC was obtained directly in the produced water with EO from L. alba LA44 (containing 82% citral) and with pure citral. These findings may help to control detrimental bacteria in the oil industry. View Full-Text
Keywords: essential oils; antimicrobial activity; sulfate-reducing bacteria (SRB); production water; oil industry essential oils; antimicrobial activity; sulfate-reducing bacteria (SRB); production water; oil industry
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Souza, P.M.; Goulart, F.R.V.; Marques, J.M.; Bizzo, H.R.; Blank, A.F.; Groposo, C.; Sousa, M.P.; Vólaro, V.; Alviano, C.S.; Moreno, D.S.A.; Seldin, L. Growth Inhibition of Sulfate-Reducing Bacteria in Produced Water from the Petroleum Industry Using Essential Oils. Molecules 2017, 22, 648.

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