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Black liquor detoxification by laccase of Trametes versicolor pellets
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2003
- Publisher :
- Wiley-Blackwell, 2003.
-
Abstract
- 7 pages, 8 figures, 1 table.-- Printed version published Apr 2003.<br />Black liquors from a soda pulping mill were treated with the white-rot fungus Trametes versicolor to detoxify and reduce colour, aromatic compounds and chemical oxygen demand (COD). The fungus was used in the form of pellets in aerated reactors (fluidized, stirred and air-pulsed reactors). Reductions in colour and aromatic compounds of 70-80% and in COD of 60% were achieved. During the different experiments, laccase activity was detected but neither lignin peroxidase (LiP) nor manganese peroxidase activities were detected, although T versicolor is able to produce these enzymes. Experiments also showed a LiP activity inhibitory effect produced by lignin. From the results obtained, it can be concluded that there is a relationship between laccase production and toxicity reduction. This correlation responds to the equation Laccase production = 1.57 LN (toxicity reduction) -16.40. Copyright © 2003 Society of Chemical Industry<br />Financial support from CICYT in the framework of Project AMB 94-0287 and CIRIT through the Unitat d'Enginyeria Bioquímica of the Centre de Referència en Biotecnología (Generalitat de Catalunya).
- Subjects :
- General Chemical Engineering
Trametes versicolor
complex mixtures
Lignin
Inorganic Chemistry
chemistry.chemical_compound
Manganese peroxidase
Botany
Waste Management and Disposal
Laccase
biology
Renewable Energy, Sustainability and the Environment
Chemistry
Organic Chemistry
Chemical oxygen demand
technology, industry, and agriculture
food and beverages
Lignin peroxidase
biology.organism_classification
Pulp and paper industry
Pollution
Fuel Technology
Soda pulping
Detoxification
Black liquor
Biotechnology
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....7683de3150cb6456a81e4e6c4357b0de