Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408031
Title Characterization of substituents in xylans from corn cobs and stover
Author(s) Dongen, F.E.M. van; Eylen, D. van; Kabel, M.A.
Source Carbohydrate Polymers 86 (2011)2. - ISSN 0144-8617 - p. 722 - 731.
Department(s) Food Chemistry Group
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) xylo-oligosaccharides - polysaccharides - arabinoxylans - pretreatment - acetylation - extraction - products - enzymes
Abstract Structural knowledge on hemicellulose from corn cobs and stover is helpful to better understand their position within the plant cell wall architecture as well as their enzymatic saccharification. In this research different extracts were prepared with water, 1 M and 4 M alkali. Most of the xylans were yielded in the 1 M alkali fractions. The xylans were substituted with arabinose and glucuronic acid; 9 and 5 (cobs) and 14 and 9 (stover) per 100 xylosyl residues, respectively. Also esterlinked groups were present, like acetic, ferulic and coumaric acids; 49, 4 and 6 (cobs) and 39, 2 and 5 per 100 xylosyl residues (stover), respectively. Incubation with a well-characterized endoxylanase showed a more blockwise distribution of side-groups for stover xylans compared to cobs. Analysis of soluble fractions of dilute acid treated cobs and stover showed that especially feruloylated oligomers were resistant.
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