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New features of ara...
New features of arabinoxylan ethers revealed by using multivariate analysis
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- Nylander, Filip, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Olof (författare)
- AstraZeneca AB
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- Josefson, Mats (författare)
- AstraZeneca AB
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- Larsson, Anette, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Westman, Gunnar, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
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Ingår i: Carbohydrate Polymers. - : Elsevier BV. - 0144-8617. ; 204, s. 255-261
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https://research.cha...
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https://research.cha...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- © 2018 Hemicelluloses are a relatively unused renewable resource. One reason is their broad structure variety that makes it hard to understand structure-property relations. In this study arbinoxylan, extracted from barley husk, was chemically modified into hydroxypropyl methyl-, hydroxypropyl- and methyl arabinoxylan. The relationship between structure and phase behavior was investigated by using multivariate analysis. The arabinoxylan ethers were characterized using mid-infrared FTIR spectroscopy and from principal components analysis, PCA, structural or physical variations between samples were visualized. With orthogonal projections to latent structures, OPLS, vibrations specific for arabinoxylan hydroxypropyl and methyl substitutions was assigned. Among the observed differences between chemical derivatives was an intensity change in the water vibration. The differences in hydration were related to clouding phase behavior of the arabinoxylan ethers. This study shows that multivariate analysis methods are useful for finding unexpected and/or hidden features in the polysaccharide structure.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- FTIR
- Hemicelluloses
- OPLS
- Methylation
- Arabinoxylan
- Multivariate analysis
- PCA
- Hydroxypropylation
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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