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Extraction of hemic...
Extraction of hemicelluloses from fiberized spruce wood
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- Azhar, Shoaib, 1980- (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Henriksson, Gunnar (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Theliander, Hans (författare)
- KTH,Wallenberg Wood Science Center,Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Lindström, Mikael (författare)
- KTH,Träkemi och massateknologi,Wallenberg Wood Science Center,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Carbohydrate Polymers. - : Elsevier BV. - 0144-8617 .- 1879-1344. ; 117, s. 19-24
- Relaterad länk:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- A novel mechanical pre-treatment method was used to separate the wood chips into fiber bundles in order to extract high molecular weight wood polymers. The mechanical pre-treatment involved chip compression in a conical plug-screw followed by defibration in a fiberizer. The fiberized wood was treated with hot water at various combinations of time and temperature in order to analyze the extraction yield of hemicelluloses at different conditions. Nearly 6 mg/g wood of galactoglucomannan was obtained at 90◦C/120min which was about three times more than what could be extracted from wood chips. The extracted carbohydrates had molecular weight ranging up to 60 kDa. About 10% of each of the extracted material had a molecular weight above 30 kDa. The extraction liquor could also be reused for consecutive extractions with successive increase in the extraction yield of hemicelluloses.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Spruce (Picea abies)
- Mechanical pre-treatment
- Fiberized wood
- Hemicelluloses
- Galactoglucomannan
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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