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The methoxy group o...
The methoxy group of beta-O-methyl glucuronic acid is central for the formation of hexenuronic acid during kraft pulping
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- Li, Jiebing (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
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- Shi, Chao (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
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- Lindström, Mikael, 1967- (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
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- Henriksson, Gunnar, 1965- (författare)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: O Papel. - 0031-1057. ; 72:1, s. 54-65
- Relaterad länk:
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http://www.revistaop...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Hexenuronic acid is created from 4-O-methyl gluc-uronic acid – a side chain group in xylan, and one of the most important hemicelluloses in both hardwood and softwood - during alkaline conditions, such as kraft pulping. Especially in hardwood kraft pulp, hexenuronic acid corresponds to a large part of the kappa number, and the presence of this component in bleached pulp causes post yellowing. In this work it is shown that glucuronic acid that lacks a methoxy group on the 4-carbon does not form hexenuronic acid under alkaline condition to the same extent as 4-O-methylglucuronic acid. This opens up novel strategies for genetic modification of the hemicellulose structures in wood cultivated for kraft pulping.
Nyckelord
- β-elimination
- bleaching
- hexenuronic acid
- kraft pulping
- transgenic tree
- xylan
- SRA - Molecular Bioscience
- SRA - Molekylär biovetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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