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STRUCTURAL VERIFICATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) STRUCTURES FROM SOFTWOOD FIBRES
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.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
2010 (English)In: RESEARCH PROGRESS IN PAPER INDUSTRY AND BIOREFINERY (4TH ISETPP), VOLS 1-3 / [ed] Sun RC; Fu SY, GUANGZHOU: SOUTH CHINA UNIV TECHNOLOGY PRESS , 2010, 332-335 p.Conference paper, Published paper (Refereed)
Abstract [en]

The LCC fractionation process developed earlier by us for hardwood samples has been further improved to include an additional fractionation of glucomannan-lignin by a step of Ba(OH)(2) precipitation to suit softwood species better. Glucan-Lignin, Glucomannan-Lignin and Xylan-Lignin were thus obtained from spruce wood and subjected to SEC and NMR analysis and thioacidolysis followed by GC and SEC analysis respectively for structural elucidations. The LCC structures have been finally verified by comparisons with the LCC fractions prepared by another earlier developed softwood process.

Place, publisher, year, edition, pages
GUANGZHOU: SOUTH CHINA UNIV TECHNOLOGY PRESS , 2010. 332-335 p.
Keyword [en]
lignin-carbohydrate complex, lignin structure, NMR, size exclusion chromatography, spruce, thioacidolysis
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-32637ISI: 000288685700081OAI: oai:DiVA.org:kth-32637DiVA: diva2:411498
Conference
International Symposium on Emerging Technologies of Pulping and Papermaking, Guangzhou, PEOPLES R CHINA, NOV 08-10, 2010
Note
QC 20110418Available from: 2011-04-18 Created: 2011-04-18 Last updated: 2011-04-18Bibliographically approved

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