Significant reduction in toxicity, BOD, and COD of textile dyes and textile industry effluent by a novel bacterium Pseudomonas sp. LBC1
Language English Country United States Media print-electronic
Document type Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Coloring Agents metabolism toxicity MeSH
- Biodegradation, Environmental MeSH
- Hydrogen-Ion Concentration MeSH
- Biological Oxygen Demand Analysis MeSH
- Molecular Sequence Data MeSH
- Sewage chemistry microbiology MeSH
- Industrial Waste adverse effects analysis MeSH
- Pseudomonas genetics isolation & purification metabolism MeSH
- Soil Microbiology MeSH
- Environmental Restoration and Remediation methods MeSH
- Sorghum drug effects MeSH
- Textile Industry MeSH
- Publication type
- Journal Article MeSH
- Evaluation Study MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Coloring Agents MeSH
- Sewage MeSH
- Industrial Waste MeSH
The 16S rRNA sequence analysis and biochemical characteristics were confirmed that the isolated bacterium is Pseudomonas sp. LBC1. The commonly used textile dye, Direct Brown MR has been used to study the fate of biodegradation. Pseudomonas sp. LBC1 showed 90% decolorization of Direct Brown MR (100 mg/L) and textile industry effluent with significant reduction in COD and BOD. The optimum condition for decolorization was 7.0 pH and 40°C. Significant increase in a activity of extracellular laccase suggested their possible involvement in decolorization of Direct Brown MR. Biodegradation metabolites viz. 3,6-dihydroxy benzoic acid, 2-hydroxy-7-aminonaphthol-3-sulfonic acid, and p-dihydroperoxybenzene were identified on the basis of mass spectra and using the 1.10 beta Shimadzu NIST GC-MS library. The Direct Brown MR and textile industry effluent were toxic to Sorghum bicolor and Vigna radiata plants as compared to metabolites obtained after decolorization. The Pseudomonas sp. LBC1 could be useful strain for decolorization and detoxification of textile dyes as well as textile industry effluent.
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GENBANK
EF541137
