Document Detail


Bacterial, SCFA and gas profiles of a range of food ingredients following in vitro fermentation by human colonic microbiota.
MedLine Citation:
PMID:  20553905     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is now apparent that there is a strong link between health and nutrition and this can be seen clearly when we talk of obesity. The food industry is trying to capitalise on this by adapting high sugar/fat foods to become healthier alternatives. In confectionery food ingredients can be used for a range of purposes including sucrose replacement. Many of these ingredients may also evade digestion in the upper gut and be fermented by the gut microbiota upon entering the colon. This study was designed to screen a range of ingredients and their activities on the gut microbiota. In this study we screened a range of these ingredients in triplicate batch culture fermentations with known prebiotics as controls. Changes in bacteriology were monitored using FISH. SCFA were measured by GC and gas production was assessed during anaerobic batch fermentations. Bacterial enumeration showed significant increases (P < or = 0.05) in bifidobacteria and lactobacilli with polydextrose and most polyols with no significant increases in Clostridium histolyticum/perfringens. SCFA and gas formation indicated that the substrates added to the fermenters were being utilised by the gut microbiota. It therefore appears these ingredients exert some prebiotic activity in vitro. Further studies, particularly in human volunteers, are necessary.
Authors:
Emma Beards; Kieran Tuohy; Glenn Gibson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-05-27
Journal Detail:
Title:  Anaerobe     Volume:  16     ISSN:  1095-8274     ISO Abbreviation:  Anaerobe     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-27     Completed Date:  2010-12-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505216     Medline TA:  Anaerobe     Country:  England    
Other Details:
Languages:  eng     Pagination:  420-5     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Food Microbial Sciences Unit, Department of Food Biosciences, The University of Reading, Reading, UK.
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MeSH Terms
Descriptor/Qualifier:
Bacterial Load
Biodiversity
Chromatography, Gas
Fatty Acids, Volatile / analysis*
Fermentation
Food Analysis*
Food Microbiology*
Gases / analysis*
Humans
In Situ Hybridization, Fluorescence
Metagenome*
Chemical
Reg. No./Substance:
0/Fatty Acids, Volatile; 0/Gases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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