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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2010-6-21
pubmed:abstractText
Contribution of intestinal bacterial degradation of quercetin aglycone to the promotive effects of fructooligosaccharides and di-D-fructose anhydride III (DFAIII) on quercetin-3-O-beta-glucoside (Q3G) bioavailability was examined. Male Sprague-Dawley rats were fed 0.68% Q3G diets with or without 1.5% or 3% oligosaccharides for 2 weeks. Blood levels and urinary excretion of quercetin and methylquercetin conjugates, measured by methanol extraction and LC-MS analyses, were dose-dependently and adaptively increased by the oligosaccharide supplementation with increasing cecal fermentation (Experiment 1). Degradation of Q3G and quercetin aglycone by cecal bacteria in oligosaccharide-fed rats was much lower than that in the control rats using an anaerobic culture system (Experiment 2). Using the ligated intestinal sacs of anesthetized rats, we found that the cecum possessed high absorptive capacity for quercetin derivatives (Experiment 3). These results demonstrate that feeding of the oligosaccharides strongly suppresses the bacterial degradation of quercetin aglycone in the cecum, thus largely contributing to the increased bioavailability of Q3G.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1520-5118
pubmed:author
pubmed:issnType
Electronic
pubmed:day
28
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9462-8
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Nondigestible saccharides suppress the bacterial degradation of quercetin aglycone in the large intestine and enhance the bioavailability of quercetin glucoside in rats.
pubmed:affiliation
Laboratory of Nutritional Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
pubmed:publicationType
Journal Article