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 434960
Title Separation and identification of individual alginate oligosaccharides in the feces of alginate-fed pigs
Author(s) Jonathan, M.C.; Bosch, G.; Schols, H.A.; Gruppen, H.
Source Journal of Agricultural and Food Chemistry 61 (2013)3. - ISSN 0021-8561 - p. 553 - 560.
DOI https://doi.org/10.1021/jf304338z
Department(s) Food Chemistry Group
Animal Nutrition
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) mass-spectrometry - capillary-electrophoresis - molecular-weight - dietary fiber - growth - acid - cells - chromatography - fermentation - hydrolysis
Abstract This research aimed to develop a method for analyzing specific alginate oligosaccharides (AOS) in a complex matrix such as pig feces. The data obtained were used to study alginate degradation by the microbiota in the large intestine during adaptation, including the individual variation between pigs. A method using an UHPLC system with an ethylene bridged hybrid (BEH) amide column coupled with MSn detection was able to distinguish saturated and unsaturated AOS with DP 2–10. Isomers of unsaturated trimer and tetramer could be separated and annotated. In the feces, saturated and unsaturated AOS were present. The presence of unsaturated AOS indicates that the microbiota produced alginate lyase. The microbiota utilized unsaturated AOS more than saturated AOS. The results also suggested that guluronic acid at the reducing end of AOS inhibits the utilization by microbiota during the first weeks of adaptation. After adaptation, the microbiota was able to utilize a broader range of AOS.
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