Effect of different carbon sources on decolourisation of an industrial textile dye under alkaline-saline conditions.
Curr Microbiol
; 68(1): 53-8, 2014 Jan.
Article
em En
| MEDLINE
| ID: mdl-23982200
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Têxteis
/
Poluentes Químicos da Água
/
Biodegradação Ambiental
/
Carbono
/
Corantes
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article