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Studies on the production of enzymes by white-rot fungi for the decolourisation of textile dyes

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Robinson, T, Chandran, B and Singh - Nee Nigam, Poonam (2001) Studies on the production of enzymes by white-rot fungi for the decolourisation of textile dyes. ENZYME AND MICROBIAL TECHNOLOGY, 29 (8-9). pp. 575-579. [Journal article]

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Abstract

Four white- rot fungi, Bjerkandera adusta, Phlebia tremellosa, Pleurotus ostreatus and Coriolus versicolor, were tested for their ability to produce Lignin Peroxidase (UP), Manganese Peroxidase (MnP), and Laccase in a nitrogen deficient mineral salts medium. B. adusta and P. tremellosa were selected, due to their high peak enzyme activities, for the degradation of 5 dyes in an artificial textile-effluent. Degradation experiments were carried out in N-rich (C:N ratio, 11.6:1) and N-limited, 116:1) conditions at a dye concentration of 100 mg/liter. B. adusta degraded 85% of the dyes in 7 days and P. tremellosa 79% in 9 days in N-rich media. 86% of the effluent was degraded in 9 days by B. adusta and 74% by P. tremellosa in 11 days in N-limited conditions. Addition of nitrogen had no substantial effect on percentage dye degradation by B. adusta, with a slight increase for P. tremellosa. Nitrogen supplementation did however reduce the decolourisation time. The results show the potential of using B. adusta and P. tremellosa for textile- effluent degradation, with or without nitrogen supplementation.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Infection and Immunity/Microbiology
ID Code:5489
Deposited By:Dr Poonam Singh - Nee Nigam
Deposited On:21 Dec 2009 10:48
Last Modified:04 Aug 2011 09:49

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