Selection of Pseudomonas for industrial textile dyes decolourization |
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| Authors: | E Silveira PP Marques SS Silva JL Lima-Filho ALF Porto EB Tambourgi |
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| Institution: | 1. Laboratory of Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow 226 025 (U.P.), India;2. Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, The Burroughs, Hendon, London NW4 4BT, England, United Kingdom;3. Department of Food Science and Biotechnology, Dongguk University, Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea;4. Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP), Tiradentes University, Farolândia, Aracaju, SE 49032-490, Brazil;5. Graduate Program in Process Engineering, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil;6. Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA;7. Department of Biochemistry, School of Applied Sciences, REVA University, Bangalore, India |
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| Abstract: | Pigment is the first contaminant to be recognised in bodies of water and wastewater. Besides the aesthetic problem, dyes obstruct light and reduce oxygen mass transfer. This paper describes the selection of Pseudomonas strains with the ability to remove colour from textile industrial dyes. Four Pseudomonas species were tested against 14 commercial industrial dyes. Pseudomonas cepacia exhibited no growth at all on plates containing dyes (1 g l?1), whereas Pseudomonas aeruginosa, Pseudomonas oleovorans and Pseudomonas putida exhibited considerable growth. Decolourization in a liquid culture revealed that P. oleovorans is more viable for decolourizing textile dyes, as it achieved over 80% colour removal for two of the 14 dyes studied; it also proved to be more tolerant to high dye concentrations. |
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