title: Effect of different carbon sources on decolourisation of an industrial textile dye under alkaline-saline conditions.
abstract: White-rot fungal strains of Trametes versicolor and Phanerochaete chrysosporium were selected to study the decolourisation of the textile dye, Reactive Black 5, under alkaline-saline conditions. Free and immobilised T. versicolor cells showed 100 % decolourisation in the growth medium supplemented with 15 g l(-1) NaCl, pH 9.5 at 30 °C in liquid batch culture. Continuous culture experiments were performed in a fixed-bed reactor using free and immobilised T. versicolor cells and allowed 85-100 % dye decolourisation. The immobilisation conditions for the biomass and the additional supply of carbon sources improved the decolourisation performance during a long-term trial of 40 days. Lignin peroxidase, laccase and glyoxal oxidase activities were detected during the experiments. The laccase activity varied depending on carbon source utilized and glycerol-enhanced laccase activity compared to sucrose during extended growth.
authors: IBB-Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
authors: Cristiane
authors: C
authors: Ottoni
authors: Luis
authors: L
authors: Lima
authors: Cledir
authors: C
authors: Santos
authors: Nelson
authors: N
authors: Lima
mesh_terms: D001673:Biodegradation, Environmental; D018533:Biomass; D002244:Carbon / Q000378:metabolism*; D004396:Coloring Agents / Q000032:analysis / Q000302:isolation & purification / Q000378:metabolism*; D007220:Industrial Waste; D009282:Naphthalenesulfonates / Q000032:analysis / Q000302:isolation & purification / Q000378:metabolism; D020075:Phanerochaete / Q000378:metabolism; D013784:Textiles; D055454:Trametes / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification / Q000378:metabolism*
chemical_list: D004396:Coloring Agents; D007220:Industrial Waste; D009282:Naphthalenesulfonates; D014874:Water Pollutants, Chemical; D002244:Carbon; C063421:Remazol black B
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