Application of cellulases from an alkalothermophilic Thermomonospora sp. in biopolishing of denims

Application of cellulases from an alkalothermophilic Thermomonospora sp. in biopolishing of denims Use of cellulase for denim washing is a standard eco‐friendly technique to achieve desirable appearance and softness for cotton fabrics and denims. But enzymatic washing of denim till date involved acid cellulase (Trichoderma reesei) and neutral cellulase (Humicola isolens) the use of which has a drawback of backstaining of the indigo dye on to the fabric. Though it has been suggested that pH is a major factor in controlling backstaining there are no reports on use of cellulase under alkaline conditions for denim washing. In this study for the first time an alkali stable endoglucanase from alkalothermophilic Thermomonospora sp. (T‐EG) has been used for denim biofinishing under alkaline conditions. T‐EG is effective in removing hairiness with negligible weight loss and imparting softness to the fabric. Higher abrasive activity with lower backstaining was a preferred property for denim biofinishing exhibited by T‐EG. The activities were comparable to acid and neutral cellulases that are being regularly used. The enzyme was also effective under non‐buffering conditions which is an added advantage for use in textile industry. A probable mechanism of enzymatic finishing of cotton fabric has been represented based on the unique properties of T‐EG. Biotechnol. Bioeng. 2007;96: 48–56. © 2006 Wiley Periodicals, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biotechnology and Bioengineering Wiley

Application of cellulases from an alkalothermophilic Thermomonospora sp. in biopolishing of denims

Loading next page...
 
/lp/wiley/application-of-cellulases-from-an-alkalothermophilic-thermomonospora-kmgESJ0s4i
Publisher
Wiley
Copyright
Copyright © 2007 Wiley Periodicals, Inc., A Wiley Company
ISSN
0006-3592
eISSN
1097-0290
DOI
10.1002/bit.21175
Publisher site
See Article on Publisher Site

Abstract

Use of cellulase for denim washing is a standard eco‐friendly technique to achieve desirable appearance and softness for cotton fabrics and denims. But enzymatic washing of denim till date involved acid cellulase (Trichoderma reesei) and neutral cellulase (Humicola isolens) the use of which has a drawback of backstaining of the indigo dye on to the fabric. Though it has been suggested that pH is a major factor in controlling backstaining there are no reports on use of cellulase under alkaline conditions for denim washing. In this study for the first time an alkali stable endoglucanase from alkalothermophilic Thermomonospora sp. (T‐EG) has been used for denim biofinishing under alkaline conditions. T‐EG is effective in removing hairiness with negligible weight loss and imparting softness to the fabric. Higher abrasive activity with lower backstaining was a preferred property for denim biofinishing exhibited by T‐EG. The activities were comparable to acid and neutral cellulases that are being regularly used. The enzyme was also effective under non‐buffering conditions which is an added advantage for use in textile industry. A probable mechanism of enzymatic finishing of cotton fabric has been represented based on the unique properties of T‐EG. Biotechnol. Bioeng. 2007;96: 48–56. © 2006 Wiley Periodicals, Inc.

Journal

Biotechnology and BioengineeringWiley

Published: Jan 1, 2007

Keywords: biopolishing; denim; cellulase; Thermomonospora sp.; alkaline conditions

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off