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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(7): 609-618
DOI: http://dx.doi.org/10.20546/ijcmas.2016.507.068


Evaluation of the Biocorrosion Inhibition Potential of Ethanol Extract of Ganoderma tropicum
Herbert O. Stanley1, Gideon O. Abu1 and Omega M. Immanuel2*
1Department of Microbiology, University of Port Harcourt, Rivers State, Nigeria
2World Bank African Centre of Excellence for Oilfield Chemicals Research, Institute of Petroleum Studies, University of Port Harcourt, Rivers State, Nigeria
*Corresponding author
Abstract:

This work investigated the inhibition effect of ethanol extract of Ganoderma tropicum on biocorrosion of carbon steel induced by a consortium of sulphate reducing bacteria (SRB). The SRB consortium used in this study included three Desulfovibrio sp. isolated from injection and produced water from Bonga oilfield in Nigeria. Isolation and gravimetric experiment were carried out in a Coy anaerobic chamber. Phytochemical screening of G. tropicum ethanol extract (GTEE) showed presence of alkaloid, glycosides, phenolic compounds, tannins, triterpenoids and steroids. Antimicrobial assay result revealed that GTEE was effective against SRB at 0.71 mg/ml. GTEE+D-tyrosine treatment gave up to 5-log reduction in SRB population. The inhibition efficiency of the extract was 45.03 %I at sub-MIC, 59.12%I at MIC, 63.81 at supra-MIC and 83.93 when potentiated with D-tyrosine for the 14-days test. The inhibition efficiency for the 28-days test was 43.19 %I at sub-MIC, 58.17%I at MIC, 62.38 at supra-MIC and 72.09 when potentiated with D-tyrosine. The application of GREE in controlling SRB growth and activities can benefit the oil and gas industry as a green biocide and corrosion inhibitor.


Keywords: Ganoderma tropicum, sulphate reducing bacteria, phytochemical, corrosion inhibitor.
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How to cite this article:

Herbert O. Stanley, Gideon O. Abu and Omega M. Immanuel. 2016. Evaluation of the Biocorrosion Inhibition Potential of Ethanol Extract of Ganoderma tropicum.Int.J.Curr.Microbiol.App.Sci. 5(7): 609-618. doi: http://dx.doi.org/10.20546/ijcmas.2016.507.068