Characterization of Lignin-Carbohydrate Complexes from Spruce Sulfite Pulp: Lignin-polysaccharide networks III
2006 (English)In: Holzforschung, ISSN 0018-3830, Vol. 60, no 2, 162-165 p.Article in journal (Refereed) Published
Lignin-carbohydrate complexes (LCCs) were isolated from unbleached acid sulfite pulp by selective enzymatic hydrolysis followed by fiber swelling and extraction. Approximately 80% of the lignin in the pulp was found to be chemically linked to carbohydrates in three major fractions, viz. as one glucan-lignin complex (with 8% lignin) and two hemicellulose-lignin complexes (with 72% lignin). The latter two were further separated into one glucomannan-lignin complex (with similar to 25% lignin) and one xylan-lignin-glucomannan complex (with 45 - 50% lignin). Based on model experiments, it can be concluded that the lignin and carbohydrate moieties are probably linked together through benzyl ether linkages. Xylan is more stable towards acidic hydrolysis than galactoglucomannan, and this finding may explain the greater amount of xylan-rich LCC in the pulp.
Place, publisher, year, edition, pages
2006. Vol. 60, no 2, 162-165 p.
acid sulfite pulp, glucomannan, lignin-carbohydrate complex (LCC), phenyl glucoside, xylan
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-7819DOI: 10.1515/HF.2006.026ISI: 000236203100008OAI: oai:DiVA.org:kth-7819DiVA: diva2:12955
Uppdaterad från submitted till published: 20101026.
QC 201010262005-10-202005-10-202010-10-26Bibliographically approved