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Laccases to Improve the Whiteness in a Conventional Bleaching of Cotton

✍ Scribed by Tzanko Tzanov; Carlos Basto; Georg M. Gübitz; Artur Cavaco-Paulo

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
99 KB
Volume
288
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

This study reports for the first time on the enhancement of the bleaching effect achieved on cotton using laccase enzyme. Laccases applied in short‐time batchwise or pad‐dry processes prior to conventional peroxide bleaching, improved the end fabric whiteness. The whiteness level reached in the combined enzymatic/peroxide process was comparable to the whiteness in two consecutive peroxide bleaches.

Effect of 10 min laccase pre‐treatment at 60 °C, pH 5 on fabrics whiteness before and after a conventional hydrogen peroxide bleaching.

magnified imageEffect of 10 min laccase pre‐treatment at 60 °C, pH 5 on fabrics whiteness before and after a conventional hydrogen peroxide bleaching.

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