Remediation of textile dye waste water using a white-rot fungus Bjerkandera adusta through solid-state fermentation (SSF).
A strict screening strategy for microorganism selection was followed employing a number of white-rot fungi for the bioremediation of textile effluent, which was generated from one Ireland-based American textile industry. Finally, one fungus Bjerkandera adusta has been investigated in depth for its ability to simultaneously degrade and enrich the nutritional quality of highly coloured textile effluent-adsorbed barley husks through solid-state fermentation (SSF). Certain important parameters such as media requirements, moisture content, protein/biomass production and enzyme activities were examined in detail. A previously optimised method of dye desorption was employed to measure the extent of dye remediation through effluent decolorisation achieved as a result of fungal activity in SSF. B. adusta was capable of decolourising a considerable concentration of the synthetic dye effluent (up to 53%) with a moisture content of 80-85%. Protein enrichment of the fermented mass was achieved to the extent of 229 g/kg dry weight initial substrate used. Lignin peroxidase and laccase were found to be the two main enzymes produced during SSF of the dye-adsorbed lignocellulosic waste residue.
Robinson
Tim
T
School of Biomedical Sciences, Faculty of Life and Health Sciences, University of Ulster, Coleraine, Northern Ireland, UK.
Nigam
Poonam Singh
PS
D000327:Adsorption; D001673:Biodegradation, Environmental; D003116:Color; D004396:Coloring Agents / Q000378:metabolism*; D055453:Coriolaceae / Q000378:metabolism*; D005285:Fermentation; D001467:Hordeum; D007220:Industrial Waste / Q000517:prevention & control*; D042845:Laccase / Q000378:metabolism; D010544:Peroxidases / Q000378:metabolism; D019441:Plant Epidermis; D013783:Textile Industry; D014877:Water Pollution, Chemical / Q000517:prevention & control; D018508:Water Purification / Q000379:methods*
D004396:Coloring Agents; D007220:Industrial Waste; D042845:Laccase; D010544:Peroxidases; C042858:lignin peroxidase