title: Isolation and characterization of microorganisms capable of decolorizing various triphenylmethane dyes.
abstract: Various soil and sludge samples collected from the vicinity of textile dyeing industries and waste disposal sites were used for enrichment of microbial population in the presence of triphenylmethane (TPM) dye Acid Violet-17 (AV-17). Twenty-five (25) isolates were screened for their ability to decolorize AV-17 dye added at a rate of 10 mgl(-1) in mineral salts medium (MSM) agar plates. Five bacterial isolates belonging to Bacillus sp., Alcaligenes sp. and Aeromonas sp. were selected on the basis of their higher decolorization ability and were used to develop a bacterial consortium. The consortium was able to efficiently decolorize various TPM dyes viz. Acid Violet-17 (86%), Acid Blue-15 (85%), Crystal Violet (82%), Malachite Green (82%) and Brilliant Green (85%). The consortium will be further used for designing efficient and cost effective treatment system for effluents of textile processing industries (TPI).
authors.affiliation: Department of Microbiology, Guru Nanak Dev University, Amritsar-143005, India.
authors.forename: Deepak Kumar
authors.initials: DK
authors.lastname: Sharma
authors.forename: Harvinder Singh
authors.initials: HS
authors.lastname: Saini
authors.forename: Manjinder
authors.initials: M
authors.lastname: Singh
authors.forename: Swapandeep Singh
authors.initials: SS
authors.lastname: Chimni
authors.forename: Bhupinder Singh
authors.initials: BS
authors.lastname: Chadha
mesh_terms: D000333:Aeromonas / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism; D000421:Alcaligenes / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism; D001407:Bacillus / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism; D001419:Bacteria / Q000145:classification / Q000302:isolation & purification* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D003116:Color; D004783:Environmental Microbiology; D005840:Gentian Violet / Q000378:metabolism; D007220:Industrial Waste; D000644:Quaternary Ammonium Compounds / Q000378:metabolism; D012394:Rosaniline Dyes / Q000378:metabolism*; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods; D014876:Water Pollution
chemical_list: D007220:Industrial Waste; D000644:Quaternary Ammonium Compounds; D012394:Rosaniline Dyes; C005095:malachite green; C031693:violet BNP; C006798:brilliant green; D005840:Gentian Violet