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Development and industrialisation of enzymatic shrink-resist process based on modified proteases for wool machine washability

Paper ID Volume ID Publish Year Pages File Format Full-Text
18110 42712 2007 6 PDF Available
Title
Development and industrialisation of enzymatic shrink-resist process based on modified proteases for wool machine washability
Abstract

There is currently considerable interest in the use of enzymes to achieve a variety of finishing effects on wool, but it is apparent that the extent of fibre degradation by enzymes is of major concern during their commercial application. Proteolytic enzymes are known to penetrate and degrade the internal wool structure during processing, causing fibre damage, rather than limiting the degradation to the cuticle cells. The ability to be able to control the exact location of proteolytic attack on wool protein structures will lead to the successful development of enzymatic treatments for achieving a variety of finishing effects for wool-containing products. This present work describes the modification of proteases so that enzymatic modification of wool fibres is restricted to the cuticle scales of the fibres.Bulk trials have demonstrated that novel modifications of the enzyme enable the reaction of the enzyme with wool to be controlled, so that less degradation of the wool occurs than in similar treatments with the native protease. An anti-felting effect has been achieved without any significant weight loss being caused by the modified protease during the treatment. This novel enzymatic process leads to environmentally friendly production of machine washable wool.

Keywords
Chemical modification; Protease; Wool; Shrink-resistance
First Page Preview
Development and industrialisation of enzymatic shrink-resist process based on modified proteases for wool machine washability
Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 40, Issue 7, 1 June 2007, Pages 1656–1661
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering