Food and feed components for gut health-promoting adhesion of E. coli Salmonella enterica

P.M. Becker, S. Galletti

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)

Abstract

BACKGROUND: A host runs less risk of contracting a gastrointestinal infection when enteropathogenic bacteria adhere to dietary fibers instead of to epithelial cell receptors. The aim of this study was to test the binding capacity of food and feed components for intestinal bacteria from various hosts using a miniaturized in vitro assay. In total, 18 dietary components were tested with four strains of E. coli, seven strains of Salmonella enterica and two strains of Lactobacillus. RESULTS: A comparison of the results obtained for all Salmonella strains tested revealed that konjac gum and sesame seed extract represented the most efficient binding matrices. Similarly, for all E. coli strains tested, sesame seed extract and artichoke performed well as binding matrices. Salmonella isolates from chickens adhered best to sesame seed extract. E. coli K88 and S. enterica sv. Typhimurium isolated from pigs effectively bound to Bia-Mos (R), pumpkin, sesame seed extract, and tomato. Sesame seed extract and tomato also had adhesive capacities for E. coli K 99, S. enterica sv. Dublin, and S. enterica sv. Typhimurium from calves. With human isolates, konjac gum showed a high binding potential for S. enterica and E. coli. CONCLUSION: The adhesion screening of different food and feed components resulted in highly discriminating product rankings. (C) 2008 Society of Chemical Industry.
Original languageEnglish
Pages (from-to)2026-2035
JournalJournal of the Science of Food and Agriculture
Volume88
Issue number11
DOIs
Publication statusPublished - 2008

Keywords

  • cell-wall polysaccharides
  • piglet small-intestine
  • tissue-culture cells
  • type-1 fimbriae
  • mannan-oligosaccharides
  • pseudomonas-aeruginosa
  • structural features
  • bacterial adherence
  • epithelial-cells
  • binding lectin

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