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Endwise type lignin present as small lignin fragments linked to carbohydrate
Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, University of Tokyo.
Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, University of Tokyo.
2005 (English)In: Chemistry and performance of composites containing wood and natural plant fibres: pre-symposium [of] 59th APPITA annual conference and exhibition, incorporating 13th ISWFPC, International Symposium on Wood, Fibre and Pulping Chemistry : Rotorua, New Zealand, 12 - 13 May 2005 ; proceedings, Carlton, VIC: Appita , 2005, p. 427-430Conference paper, Published paper (Refereed)
Abstract [en]

The content of glyceraldehyde-2-aryl ether type structure in water soluble LCC fractions, which was obtained from Japanese cedar and birch residual wood meal after MWL isolation, was determined by the use of ozonation method. Quite high amount of glyceraldehyde-2-aryl ether type structure was found in water soluble LCC fractions of both species, which was about 3-5 times higher than that of other fractions. This result as well as the high content of β-1 structure in these fractions shown in our previous papers suggest that lignin in these fractions has characteristics as endwise type lignin, because abundance of both of these structures are typical for this type of lignin. These results are in good accordance with the generally accepted hypothesis that glyceraldehyde-2-aryl ether type structure and β-1 structure are generated at the same time by radical coupling reaction. It was also indicated that these two structures are present very close to each other in lignin

Place, publisher, year, edition, pages
Carlton, VIC: Appita , 2005. p. 427-430
National Category
Bio Materials
Research subject
Wood Physics
Identifiers
URN: urn:nbn:se:ltu:diva-30746Local ID: 4a9d25a0-359b-11df-b933-000ea68e967bISBN: 958554897 (print)OAI: oai:DiVA.org:ltu-30746DiVA, id: diva2:1003975
Conference
International Symposium on Wood, Fibre and Pulping Chemistry : 16/05/2005 - 19/05/2005
Note
Godkänd; 2005; 20100322 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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