Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Xylan as limiting factor in enzymatic hydrolysis of nanocellulose
University of Helsinki, Finland.
University of Helsinki, Finland.
VTT Technical Research Centre of Finland, Finland.
RISE, Innventia.
Show others and affiliations
2013 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 129, p. 135-141Article in journal (Refereed) Published
Abstract [en]

The role of xylan as a limiting factor in the enzymatic hydrolysis of cellulose was studied by hydrolysing nanocellulose samples prepared by mechanical fibrillation of birch pulp with varying xylan content. Analyzing the nanocelluloses and their hydrolysis residues with dynamic FT-IR spectroscopy revealed that a certain fraction of xylan remained tightly attached to cellulose fibrils despite partial hydrolysis of xylan with xylanase prior to pulp fibrillation and that this fraction remained in the structure during the hydrolysis of nanocellulose with cellulase mixture as well. Thus, a loosely bound fraction of xylan was predicted to have been more likely removed by purified xylanase. The presence of loosely bound xylan seemed to limit the hydrolysis of crystalline cellulose, indicated by an increase in cellulose crystallinity and by preserved crystal width measured with wide-angle X-ray scattering. Removing loosely bound xylan led to a proportional hydrolysis of xylan and cellulose with the cellulase mixture. 

Place, publisher, year, edition, pages
2013. Vol. 129, p. 135-141
Keywords [en]
Dynamic FT-IR spectroscopy, Enzymatic hydrolysis, Hemicellulose, Nanocellulose, Wide-angle X-ray scattering
National Category
Nano Technology Organic Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-9790DOI: 10.1016/j.biortech.2012.11.017Scopus ID: 2-s2.0-84870875285OAI: oai:DiVA.org:ri-9790DiVA, id: diva2:968572
Available from: 2016-09-12 Created: 2016-09-12 Last updated: 2020-12-01Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus
By organisation
Innventia
In the same journal
Bioresource Technology
Nano TechnologyOrganic Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 31 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf