Selection of white-rot fungi to formulate complex and coated pellets for Reactive Orange 165 decolourization
Título del documento: Selection of white-rot fungi to formulate complex and coated pellets for Reactive Orange 165 decolourization
Revue: Electronic journal of biotechnology
Base de datos: PERIÓDICA
Número de sistema: 000357878
ISSN: 0717-3458
Autores: 1
1
2
1
Instituciones: 1Universidad de La Frontera, Núcleo Científico y Tecnológico de Biorrecursos, Temuco, Cautín. Chile
2Universidade do Minho, Departamento de Engenharia Biologica, Braga. Portugal
Año:
Volumen: 15
Número: 6
País: Chile
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Six strains of white-rot fungi isolated from southern Chile were evaluated for their ergosterol/biomass correlation and ligninolytic potential in solid medium to formulate pellets for Reactive Orange 165 (RO165) decolourization. The fungus Anthracophyllum discolor was selected to formulate complex pellets (fungal mycelium, sawdust, and activated carbon), coated pellets (complex pellet + alginate) and simple pellets (fungal mycelium). The activity of ligninolytic enzymes (laccase, manganese peroxidase, manganese-independent peroxidase, and lignin peroxidase) was evaluated in both the complex and coated pellets in modified Kirk medium, and the morphology of the pellets was studied using scanning electron microscopy (SEM). Complex pellets of A. discolor showed a higher enzymatic production mainly MnP (38 U L-1 at day 15) compared to coated and simple pellets. Examinations using SEM showed that both pellets produced a black core that was entrapped by a layer of fungal mycelium. Decolourization of RO165 was demonstrated with all the pellets formulated. However, the highest and fastest decolourization was obtained with complex pellets (100% at day 8). Therefore, complex pellets of A. discolor can be used for the biological treatment of wastewater contaminated with RO165
Disciplinas: Biología
Palabras clave: Hongos,
Biotecnología,
Enzimas lignolíticas,
Ergosterol,
Bioproducción,
Pudrición blanca,
Decoloración
Keyword: Biology,
Fungi,
Biotechnology,
Lignolytic enzymes,
Ergosterol,
Bioproduction,
White rot,
Decoloration
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