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Biotechnol Lett. 2003 Sep;25(17):1473-7.

Immobilized laccase for decolourization of Reactive Black 5 dyeing effluent.

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1
Department of Textile Engineering, University of Minho, 4800-058 Guimarães, Portugal.

Abstract

Reactive Black 5 industrial dyeing effluent was decolourized by free and immobilized laccase. The stability of the enzyme (194 h free and 79 h immobilized) depended on the dyeing liquor composition and the chemical structure of the dye. In the decolourization experiments with immobilized laccase, two phenomenons were observed--decolourization due to adsorption on the support (79%) and dye degradation due to the enzyme action (4%). Dyeing in the enzymatically recycled effluent provided consistency of the colour with both bright and dark dyes.

PMID:
14514053
[Indexed for MEDLINE]
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