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Enzyme-mediated coupling of a bi-functional phenolic compound onto wool to enhance its physical, mechanical and functional properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
17650 42686 2010 5 PDF Available
Title
Enzyme-mediated coupling of a bi-functional phenolic compound onto wool to enhance its physical, mechanical and functional properties
Abstract

Wool fibres have been modified with nordihydroguaiaretic acid (NDGA) to improve their performance at use. This water insoluble bi-functional phenolic compound has been grafted on wool through a laccase enzyme catalyzed reaction in an aqueous–ethanol mixture. The capacity of laccase to oxidise NDGA in this aqueous–organic medium has been studied electrochemically. The increase of CH2, CH3 and aromatic groups signal in the DRIFT spectra, together with SEM images of the enzymatically modified fabrics confirmed the covalent grafting of NDGA on wool. This one step enzymatic process for grafting of NDGA improved the physical and mechanical properties of wool fabrics such as shrink resistance, crease recovery and tensile strength. Furthermore, the NDGA imparted to the textile material strong antioxidant activity and UV protection.

Keywords
Wool; Nordihydroguaiaretic acid; Laccase; Aqueous–organic medium; Surface modification; Shrink resistance; UV protection
First Page Preview
Enzyme-mediated coupling of a bi-functional phenolic compound onto wool to enhance its physical, mechanical and functional properties
Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 46, Issues 3–4, 5 March 2010, Pages 326–330
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering