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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Decolorization and biodegradation of Reactive Blue 13 by Proteus mirabilis LAG
Journal of Hazardous Materials, Volume 184, No. 1-3, Year 2010
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Description
The decolorization and biodegradation of Reactive Blue 13 (RB13), a sulphonated reactive azo dye, was achieved under static anoxic condition with a bacterial strain identified as Proteus mirabilis LAG, which was isolated from a municipal dump site soil near Lagos, Nigeria. This strain decolorized RB13 (100mg/l) within 5h. The formation of aromatic amine prior to mineralization was supported by Fourier transform infrared spectrometry (FTIR), which revealed the disappearance of certain peaks, particularly those of the aromatic C-H bending at 600-800cm-1. Gas chromatography-mass spectrophotometry (GCMS) analysis of the dye metabolite showed the presence of sodium-2(2-formyl-2-hydroxyvinyl) benzoate, with a tropylium cation as its base peak, this suggested the breakage of naphthalene rings in RB13. The detection of azoreductase and laccase activities suggested the enzymatic reduction of azo bonds prior to mineralization. In addition, phytotoxicity studies indicated the detoxification of RB13 to non-toxic degradation products by this strain of P. mirabilis LAG. © 2010 Elsevier B.V.
Authors & Co-Authors
Olukanni, Olumide D.
Nigeria, Lagos
University of Lagos
India, Kolhapur
Shivaji University
Nigeria, Ede
Redeemer‘s University
Osuntoki, Akinniyi Adediran
Nigeria, Lagos
University of Lagos
Kalyani, Dayanand Chandrahas
India, Kolhapur
Shivaji University
South Korea, Seoul
Konkuk University
Gbenle, George Olabode
Nigeria, Lagos
University of Lagos
Govindwar, S. P.
India, Kolhapur
Shivaji University
Statistics
Citations: 98
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1016/j.jhazmat.2010.08.035
ISSN:
03043894
Research Areas
Environmental
Study Locations
Nigeria