| Microbial utilization and selectivity of pectin fractions with various structures. | |
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MedLine Citation:
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PMID: 21724897 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To evaluate the fermentation properties of oligosaccharides derived from pectins and their parent polysaccharides, a 5-ml-working-volume, pH- and temperature-controlled fermentor was tested. Six pectic oligosaccharides representing specific substructures found within pectins were prepared. These consisted of oligogalacturonides (average degrees of polymerization [DP] of 5 and 9), methylated oligogalacturonides (average DP of 5), oligorhamnogalacturonides (average DP of 10 as a disaccharide unit of galacturonic acid and rhamnose), oligogalactosides (average DP of 5), and oligoarabinosides (average DP of 6). The influence of these carbohydrates on the human fecal microbiota was evaluated. Use of neutral sugar fractions resulted in an increase in Bifidobacterium populations and gave higher organic acid yields. The Bacteroides-Prevotella group significantly increased on all oligosaccharides except oligogalacturonides with an average DP of 5. The most selective substrates for bifidobacteria were arabinan, galactan, oligoarabinosides, and oligogalactosides. |
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Authors:
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Chatchaya Onumpai; Sofia Kolida; Estelle Bonnin; Robert A Rastall |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Validation Studies Date: 2011-07-01 |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 77 ISSN: 1098-5336 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-08-05 Completed Date: 2011-12-15 Revised Date: 2012-02-01 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: United States |
Other Details:
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Languages: eng Pagination: 5747-54 Citation Subset: IM |
Affiliation:
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Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Arabidopsis / chemistry Bacterial Load / methods Bacteroides / metabolism Bifidobacterium / metabolism* Bioreactors / microbiology*, standards Chemical Fractionation / methods Fatty Acids, Volatile / metabolism Feces / microbiology* Fermentation* Hexuronic Acids / metabolism Humans In Situ Hybridization, Fluorescence Oligosaccharides / metabolism Pectins / metabolism* Rhamnose / metabolism Seeds / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Volatile; 0/Hexuronic Acids; 0/Oligosaccharides; 0/Pectins; 10485-94-6/Rhamnose; 14982-50-4/galacturonic acid |
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