id:"swepub:oai:research.chalmers.se:573740ed-bfc9-45bc-a06a-53dbb3bb76a9"
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- Nylander, Filip,1986Chalmers tekniska högskola,Chalmers University of Technology (author)
New features of arabinoxylan ethers revealed by using multivariate analysis
- Article/chapterEnglish2019
Publisher, publication year, extent ...
- Elsevier BV,2019
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- LIBRIS-ID:oai:research.chalmers.se:573740ed-bfc9-45bc-a06a-53dbb3bb76a9
- https://research.chalmers.se/publication/506492URI
- https://research.chalmers.se/publication/505671URI
- https://research.chalmers.se/publication/505977URI
- https://doi.org/10.1016/j.carbpol.2018.09.062DOI
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- Language:English
- Summary in:English
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- © 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.
Subject headings and genre
- 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
- FTIR
- Hemicelluloses
- OPLS
- Methylation
- Arabinoxylan
- Multivariate analysis
- PCA
- Hydroxypropylation
Added entries (persons, corporate bodies, meetings, titles ...)
- Svensson, OlofAstraZeneca AB (author)
- Josefson, MatsAstraZeneca AB (author)
- Larsson, Anette,1966Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)anettel (author)
- Westman, Gunnar,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)westman (author)
- Chalmers tekniska högskolaAstraZeneca AB (creator_code:org_t)
Related titles
- In:Carbohydrate Polymers: Elsevier BV204, s. 255-2610144-8617
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