Journal of Proteomics & EnzymologyISSN: 2470-1289

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Review Article, J Proteomics Enzymol Vol: 4 Issue: 1

Xylan Degrading Enzymes from Fungal Sources

Kirikyali N and Connerton IF*
Division of Food Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Lough borough, LE12 5RD, UK
Corresponding author : Connerton IF
Division of Food Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Lough borough, LE12 5RD, United Kingdom
Tel: +44 115 95 16 161; Fax: +44 115 95 16 162
E-mail: [email protected]
Received: April 01, 2015 Accepted: April 21, 2015 Published: April 25, 2015
Citation: Kirikyali N, Connerton IF (2015) Xylan Degrading Enzymes from Fungal Sources. J Proteomics Enzymol 4:1. doi:10.4172/10.4172/2470-1289.1000118

Abstract

Fungi have the ability to degrade xylan as the major component of plant cell wall hemicellulose. Fungi have evolved batteries of xylanolytic enzymes that concertedly act to depolymerise xylan backbones decorated with variable carbohydrate branches. As an alternative to acid extraction in industrial processes the combination of endo-1,4-β-xylanase and β-xylosidase can reduce xylan to xylose. However, unlike chemical extraction procedures enzyme systems can selectively hydrolyse α-L-arabinofuranosyl, 4-O-methyl-α-D-glucuronopyranosyl, acetyl and phenolic branches, and therefore have the potential to deconstruct hemicellulose whilst retaining desirable structural integrity and functionality. The sources, structures and catalytic activities of fungal xylanolytic enzymes are reviewed and discussed in the context of their biotechnological potential.

Keywords: Hemicellulose; Xylan; β-xylosidase; Endo-xylanase; Xylose

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