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Elucidation and Quantification of Pseudolignin Structures Formed during Steam Explosion
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, Wood Chemistry and Pulp Technology.
2008 (English)In: PROCEEDINGS OF INTERNATIONAL CONFERENCE ON PULPING, PAPERMAKING AND BIOTECHNOLOGY 2008: ICPPB '08, VOL I / [ed] Jin Y; Zhai H; Li Z, NANJING: NANJING FORESTRY UNIV , 2008, 631-636 p.Conference paper, Published paper (Refereed)
Abstract [en]

Structural characterization of the lignin obtained in a biomass-to-ethanol process is of importance for the lignin utilization which is in turn economically critical for the process. For steam explosion lignins, it has been found that there is a noticeable amount of pseudolignin structures present, appearing as two unique peaks in 2D HSQC NMR. The structures were elucidated as the condensed structures between lignin with furfural and with hydroxymethyl furfural (HMF) via a double bond connection. All isolated steam explosion lignins contain the structures in a quantity of 1 to 4 furan nuclei per 100 lignin C6 units.

Place, publisher, year, edition, pages
NANJING: NANJING FORESTRY UNIV , 2008. 631-636 p.
Keyword [en]
ETHANOL, WOOD
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-31197ISI: 000265073800097ISBN: 978-988-17682-2-3 (print)OAI: oai:DiVA.org:kth-31197DiVA: diva2:406811
Conference
International Conference on Pulping, Papermaking and Biotechnology, Nanjing Forestry Univ, Nanjing, PEOPLES R CHINA, NOV 04-06, 2008
Note
QC 20110328Available from: 2011-03-28 Created: 2011-03-11 Last updated: 2011-03-28Bibliographically approved

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