Biodegradation and decolourization of anaerobically treated distillery spent wash by a novel bacterial consortium |
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Authors: | Mohana Sarayu Desai Chirayu Madamwar Datta |
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Affiliation: | Post Graduate Department of Biosciences, Sardar Patel University, Vallabh Vidyanagar, Gujarat 388 120, India. |
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Abstract: | The aim of this study was to isolate microorganisms capable of decolourizing and degrading anaerobically treated distillery spent wash. A bacterial consortium DMC comprising of three bacterial cultures was selected on the basis of rapid effluent decolourization and degradation, which exhibited 67 +/- 2% decolourization within 24 h and 51 +/- 2% chemical oxygen demand reduction within 72 h when incubated at 37 degrees C under static condition in effluent supplemented with 0.5% glucose, 0.1% KH(2)PO(4), 0.05% KCl and 0.05% MgSO(4) x 7H(2)O. Addition of organic or inorganic nitrogen sources did not support decolourization. The cultures were identified as Pseudomonas aeruginosa PAO1, Stenotrophomonas maltophila and Proteus mirabilis by the 16S rDNA analysis. |
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