Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 62, Issue 25, Pages 5871-5880Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf405612a
Keywords
strawberry extract; fructooligosaccharides; gastrointestinal tract; nasutin A; Wistar rats
Funding
- National Science Centre Poland [DEC-2012/05/B/NZ9/03402]
- Polish Ministry of Science and Higher Education [NN312360139]
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Forty-eight male Wistar rats were fed diets containing low (0.051% of diet) or high (0.153% of diet) levels of an ellagitannin-rich (ET) strawberry extract with dietary fructooligosaccharides (FOS) or cellulose (CEL) for 4 weeks. The in vivo study demonstrated that some positive changes in the cecal metabolism resulting from the ingestion of a diet enriched only with FOS were completely or slightly suppressed by the dietary ET. In particular, the pH value (7.21 vs 7.36), short-chain fatty acid production (41.2 vs 30.0 mu mol/100g BW), and beta-glucuronidase activity (20.2 vs 15.7 mu mol/h/g) in the cecum of rats fed with FOS were affected upon the addition of the ET extract. Dietary FOS caused higher metabolism of the tested ET strawberry extract in the gastrointestinal tract of rats. Moreover, the systemic effect of the supplements when consumed together showed undesired serum HDL-cholesterol decrease (0.78 vs 1.02 mmol/L in the treatment with FOS only).
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