Document Detail


In vitro fermentation of lactulose derived oligosaccharides by mixed faecal microbiota.
MedLine Citation:
PMID:  22292561     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Fermentation properties of oligosaccharides derived from lactulose (OsLu) and lactose (GOS) have been assessed in pH-controlled anaerobic batch cultures using lactulose and Vivinal-GOS as reference carbohydrates. Changes in gut bacterial populations and their metabolic activities were monitored over 24 h by fluorescent in situ hybridization (FISH), and by measurement of short-chain fatty acid (SCFA) production. Lactulose-derived oligosaccharides were selectively fermented by Bifidobacterium and lactic acid bacteria populations producing higher SCFA concentrations compared to GOS. The highest total SCFA production was from Vivinal-GOS  lactulose  OsLu  GOS. Longer incubation periods produced a selective fermentation of oligosaccharides derived from lactulose when they were used as a carbon source reaching the highest selective index scores. The new oligosaccharides may constitute a good alternative to lactulose and they could belong to a new generation of prebiotics to be used as a functional ingredient for improving the composition of gut microflora.
Authors:
Alejandra Cardelle-Cobas; Agustín Olano; Nieves Corzo; Mar Villamiel; Michelle Collins; Sofia Kolida; Robert A Rastall
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-1
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-1     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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