Document Detail


In vitro fermentation of alternansucrase raffinose-derived oligosaccharides by human gut bacteria.
MedLine Citation:
PMID:  21913653     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In this work, in vitro fermentation of alternansucrase raffinose derived oligosaccharides, previously fractionated according to their degree of polymerization (DP; from DP4 to DP10) was carried out using small-scale pH-controlled batch cultures at 37 ºC under anaerobic conditions with human feces. Bifidogenic activity of oligosaccharides with DP4-6 similar to that of lactulose was observed; however, in general, a significant growth of lactic acid bacteria Bacteroides, Atopobium cluster and Clostridium histolyticum group was not shown during incubation. Acetic acid was the main SCFA (short-chain fatty acid) produced during the fermentation process; the highest levels of this acid were shown by alternansucrase raffinose acceptor pentasaccharides at 10 h (63.11 mM) and heptasaccharides at 24 h (54.71 mM). No significant differences between the gas volume produced by the mixture of raffinose-based oligosaccharides (DP5-DP10) and inulin after 24 hours of incubation were detected, whereas, lower gas volume was generated by DP4 oligosaccharides. These findings indicate that novel raffinose-derived oligosaccharides (DP4-DP10) could be a new source of prebiotic carbohydrates.
Authors:
Oswaldo Hernandez-Hernandez; Greg L Cote; Sofia Kolida; Robert A Rastall; Maria Luz Sanz
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-13
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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