An Overview on the Use of Microbial and Enzymatic Systems for Dye Biotransformation

Dyes are of primary importance to textile manufacturing. These are xenobiotic compounds that are very recalcitrant against biodegradative processes. Nevertheless, in recent years, the knowledge base for using biocatalysts as remediation agents has increased substantially. In particular, various lign...

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Bibliographic Details
Published inJournal of natural fibers Vol. 3; no. 4; pp. 69 - 80
Main Authors Costa-Ferreira, Maria, Soares, Graga M. B., Maximo, Cristina
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 09.04.2007
Subjects
Aerobic
anaerobic
bioremediation
textile dyes
white-rot fungi
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Summary:Dyes are of primary importance to textile manufacturing. These are xenobiotic compounds that are very recalcitrant against biodegradative processes. Nevertheless, in recent years, the knowledge base for using biocatalysts as remediation agents has increased substantially. In particular, various lignolytic fungi have been shown to transform several dyes to non-coloured products. The involvement of lignolytic enzymes, lignin peroxidase, Mn-peroxidase, and laccase, is described in relation to dye biotransformation. In the case of bacterial systems, azo dye transformation begins in most cases by a reductive cleavage leading to the formation of colourless amines. Some of the issues that remain to be addressed before biological systems, either whole cells or enzymes thereof, can be used for the industrial remediation of coloured wastewater from the textile dyeing process are highlighted.
ISSN:1544-0478
1544-046X
DOI:10.1300/J395v03n04_06