Bacterial decolourization of azo dyes
Release of textile effluent into the environment is a matter of health concern. Dyes and pigments that are part of textile effluent generate hazardous wastes which are generally inorganic or organic contaminants. Among the present pollution control strategies, biodegradation of synthetic dyes by microbes is evolving as a promising approach, even more than physico-chemical methods. While both mixed cultures and pure cultures have been used to achieve efficient biodegradation, no conclusive result has been determined. This paper aims at checking the efficiency of mixed culture of sewage and pure isolates in degradation of azo dyes, both simple dyes like methyl red and methyl orange and a more complex dye like Janus green.
 H. Ali, "Biodegradation of Synthetic Dyes—A Review," Water. Air, Soil Pollution- Springer, vol. 273, pp. 213-251, 2010.
 H. S. Rai, J. Singh, T. K. Bansal, P. Vats and U. C. Banerjee, "Removal of dyes from the effluent of textile and dyestuff manufacturing industry: A review of emerging techniques with reference to biological treatment," Critical reviews in environmental science and technology, vol. 35, pp. 219-238, 2005.
 B. Goodell, Y. Qian, J. Jellison and M. Richard, "Decolorization and Degradation of Dyes with Mediated Fenton Reaction," Water Environment Research, vol. 76, no. 7, pp. 2703-2707, 2004.
 R. J. Davis, J. L. Gaine, G. O. and I.-W. Wu, "Photocatalytic Decolorization of Wastewater Dyes," Water Environment Research, vol. 66, no. 1, pp. 50-53, 1994.
 A. V. Patil, V. H. Lokhande, P. Suprasanna, V. A. Bapat and J. P. Jadhav, "Sesuvium portulacastrum (L.) L.: a potential halophyte for the degradation of toxic textiledye, Green HE4B," Planta- Springer, vol. 235, no. 5, pp. 1051-1063, 2012.
 A. N. Kagalkar, U. B. Jagtap, J. P. Jadhav, S. P. Govindwarand and V. A. Bapat, "Studies on phytoremediation potentiality of Typhonium flagelliforme for the degradationof Brilliant Blue R," Planta, vol. 232, no. 1, pp. 271-285, 2010.
 C. R. Corso and A. C. M. d. Almeida, "Bioremediation of Dyes in Textile Effluents by Aspergillus oryzae," Springer- Microbe Ecology , vol. 57, pp. 384-390, 2009.
 E. Idaka, H. Horitsu and T. Ogawa, "Some properties of azoreductase produced by Pseudomonas cepacia," Bulletin of Environmental Contamination and Toxicology, vol. 39, p. 982–989, 1987.
 P. P. Vijaya, P. Padmavathy and S. Sandhya, "Decolourization and biodegradation of reactive azo dyes by mixed culture," Indian journal of Biotechnology, vol. 2, pp. 259-263, 2003.
 E. Zabłocka-Godlewska, W. Przystaś and E. Grabińska-Sota, "Decolourisation of Different Dyes by two Pseudomonas Strains," Water, air, soil pollution, vol. 225, no. 1846, pp. 1-13, 2014.
 D. Barcelo and A. G. Kostianoy, The Handbook of Environmental Chemistry, vol. 9, Berlin: Springer, 2009, pp. 1-38.
 A. Stolz, "Basic and applied aspects in the microbial degradation of azo dyes," Applied microbiology and biotechnology- Springer, vol. 56, p. 69–80, 2001.
 E.F.Kankeu, F.Waanders, P.Njobeh, L.P.Simelane, "Physico-Chemical treatment influenced by bacterial membrane and impact on dye adsorption capacity," in International Conference on Advances in Science, Engineering, Technology & Natural Resources , parys, 2016.
 S. B. Younes, T. Mechichi and S. Sayadi, "Purification and characterization of the laccase secreted by the white rot fungus Perenniporia tephropora and its role in the decolourization of synthetic dyes," Journal of Applied Microbiology, vol. 102, pp. 1033-1042, 2007.
 L. Levin, E. Melignani and A. M. Ramos, "Effect of nitrogen sources and vitamins on ligninolytic enzyme production by some white-rot fungi. Dye decolorization by selected culture filtrates," Bioresource Technology, vol. 101, p. 4554–4563, 2010.
 C. J. Ogugbue and T. Sawidis, "Bioremediation and Detoxification of Synthetic Wastewater Containing Triarylmethane Dyes by Aeromonas hydrophila Isolated from Industrial Effluent," Biotechnology Research International, vol. 2011, pp. 1-11, 2011.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.