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Hot-water extraction and characterization of spruce bark non-cellulosic polysaccharides
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymer Technology.ORCID iD: 0000-0002-1631-1781
Åbo Akademi University, Finland.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
2012 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 27, no 1, 18-23 p.Article in journal (Refereed) Published
Abstract [en]

Non-cellulosic polysaccharides (NCP) from bark offer large potential as a class of natural raw materials for functional materials development and production of biochemicals. We have elaborated a process for sequential extraction of NCP from industrial Norway spruce bark using an accelerated solvent extraction (ASE) with water at 100 to 160°C. Carbohydrates, Klason lignin and ash content as well as size-exclusion chromatography (SEC) analyses were performed for all hot-water extracts. NCP were mainly composed of glucose, arabinose and galacturonic acid units which revealed the presence of starch, arabinose-rich hemicelluloses and pectins. In total, the industrial bark of Norway spruce contained up to 20% of NCP which were extracted with pressurized hot water. NCP were mainly extractable at 140°C and started to undergo degradation at higher temperature.

Place, publisher, year, edition, pages
2012. Vol. 27, no 1, 18-23 p.
Keyword [en]
Biorefinery, Hemicelluloses, Norway spruce, Pectins
National Category
Polymer Chemistry Other Chemistry Topics
Identifiers
URN: urn:nbn:se:kth:diva-78427DOI: 10.3183/NPPRJ-2012-27-01-p018-023ISI: 000311019900002Scopus ID: 2-s2.0-84860166306OAI: oai:DiVA.org:kth-78427DiVA: diva2:492476
Funder
Vinnova
Note

QC 20120627

Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2017-12-08Bibliographically approved

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Edlund, Ulrica

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Le Normand, MyriamEdlund, UlricaHolmbom, BjarneEk, Monica
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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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