Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq

Black oil is a refined petroleum product that poses a significant environmental risk. It contains complex multihydrocarbons that decompose slowly, so black oil remains in the environment for a long time, causing various toxic effects. This study isolates and identifies an indigenous bacterium from s...

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Main Authors: Zeena Ghazi Faisal, Mohannad Mohammed Jameel, Othman Abbas Abdullah
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/tswj/4009105
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author Zeena Ghazi Faisal
Mohannad Mohammed Jameel
Othman Abbas Abdullah
author_facet Zeena Ghazi Faisal
Mohannad Mohammed Jameel
Othman Abbas Abdullah
author_sort Zeena Ghazi Faisal
collection DOAJ
description Black oil is a refined petroleum product that poses a significant environmental risk. It contains complex multihydrocarbons that decompose slowly, so black oil remains in the environment for a long time, causing various toxic effects. This study isolates and identifies an indigenous bacterium from soil samples contaminated with waste lubricating oil and evaluates its potential for degrading black crude oil. Twelve species of black oil-degrading bacteria were isolated from six soil samples of automobile and motorcycle workshops in the Al-Tarmiyah District of Baghdad, Iraq. Isolated bacteria were identified based on morphological and VITEK 2 system as Pseudomonas aeruginosa, Bacillus cereus, Burkholderia cepacia, Pseudomonas fluorescens, Acinetobacter lwoffii, Acinetobacter radioresistens, Stenotrophomonas maltophilia, and Streptococcus parasanguinis. Among these, based on the measurement of optical density and chromatogram analysis, B. cereus exhibited the maximum efficiency in degrading black oil, followed by P. aeruginosa. Therefore, these indigenous bacteria have the potential to be used in black oil removal from contaminated sites and the expansion of bioremediation approaches.
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spelling doaj-art-5e3665a45fff41f6a868cfbfdc0679582025-08-20T02:24:55ZengWileyThe Scientific World Journal1537-744X2025-01-01202510.1155/tswj/4009105Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, IraqZeena Ghazi Faisal0Mohannad Mohammed Jameel1Othman Abbas Abdullah2Department of BiologyDepartment of BiologyDepartment of BiologyBlack oil is a refined petroleum product that poses a significant environmental risk. It contains complex multihydrocarbons that decompose slowly, so black oil remains in the environment for a long time, causing various toxic effects. This study isolates and identifies an indigenous bacterium from soil samples contaminated with waste lubricating oil and evaluates its potential for degrading black crude oil. Twelve species of black oil-degrading bacteria were isolated from six soil samples of automobile and motorcycle workshops in the Al-Tarmiyah District of Baghdad, Iraq. Isolated bacteria were identified based on morphological and VITEK 2 system as Pseudomonas aeruginosa, Bacillus cereus, Burkholderia cepacia, Pseudomonas fluorescens, Acinetobacter lwoffii, Acinetobacter radioresistens, Stenotrophomonas maltophilia, and Streptococcus parasanguinis. Among these, based on the measurement of optical density and chromatogram analysis, B. cereus exhibited the maximum efficiency in degrading black oil, followed by P. aeruginosa. Therefore, these indigenous bacteria have the potential to be used in black oil removal from contaminated sites and the expansion of bioremediation approaches.http://dx.doi.org/10.1155/tswj/4009105
spellingShingle Zeena Ghazi Faisal
Mohannad Mohammed Jameel
Othman Abbas Abdullah
Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
The Scientific World Journal
title Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
title_full Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
title_fullStr Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
title_full_unstemmed Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
title_short Isolation and Identification of Black Oil-Degrading Bacteria From Lubricant-Contaminated Soil in Northern Baghdad, Iraq
title_sort isolation and identification of black oil degrading bacteria from lubricant contaminated soil in northern baghdad iraq
url http://dx.doi.org/10.1155/tswj/4009105
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AT mohannadmohammedjameel isolationandidentificationofblackoildegradingbacteriafromlubricantcontaminatedsoilinnorthernbaghdadiraq
AT othmanabbasabdullah isolationandidentificationofblackoildegradingbacteriafromlubricantcontaminatedsoilinnorthernbaghdadiraq