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EnglishThe aim of the present study was to evaluate the antimicrobial activity of two synbiotic combinations, Lactobacillus fermentum with short-chain fructooligosaccharides (FOS-LF) and Bifidobacterium longum with isomaltooligosaccharides (IMO-BL), against enterohaemorrhagic Escherichia coli O157:H7 and enteropathogenic E. coli O86. Antimicrobial activity was determined (1) by co-culturing the synbiotics and pathogens in batch cultures, and (2) with the three-stage continuous culture system (gut model), inoculated with faecal slurry from an elderly donor. In the co-culture experiments, IMO-BL was significantly inhibitory to both E. coli strains, while FOS-LF was slightly inhibitory or not inhibitory. Factors other than acid production appeared to play a role in the inhibition. In the gut models, both synbiotics effectively inhibited E. coli O157 in the first vessel, but not in vessels 2 and 3. E. coli O86 was not significantly inhibited.
Likotrafiti, E.; Tuohy, K.M.; Gibson, G.R.; Rastall, R.A. (2016). Antimicrobial activity of selected synbiotics targeted for the elderly against pathogenic Escherichia coli strains. INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION, 67 (2): 83-91. doi: 10.3109/09637486.2015.1134444 handle: http://hdl.handle.net/10449/28337
| Citation: | Likotrafiti, E.; Tuohy, K.M.; Gibson, G.R.; Rastall, R.A. (2016). Antimicrobial activity of selected synbiotics targeted for the elderly against pathogenic Escherichia coli strains. INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION, 67 (2): 83-91. doi: 10.3109/09637486.2015.1134444 handle: http://hdl.handle.net/10449/28337 | |
| Internal authors: | ||
| Organization unit: | CRI [2011-01 - today]: DEPARTMENT OF FOOD QUALITY AND NUTRITION | |
| Authors: | Likotrafiti, E.; Tuohy, K.M.; Gibson, G.R.; Rastall, R.A. | |
| Title: | Antimicrobial activity of selected synbiotics targeted for the elderly against pathogenic Escherichia coli strains | |
| Journal: | INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION | |
| Issue Date: | 2016 | |
| Scientific Disciplinary Area: | Settore AGR/15 - SCIENZE E TECNOLOGIE ALIMENTARI | |
| Keywords ENG: | Bifidobacterium Lactobacillus Gut model | |
| Language: | English | |
| IF: | With Impact Factor ISI | |
| Publication status: | Published | |
| Nature of content: | Articolo in rivista/Article | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.3109/09637486.2015.1134444 | |
| Appears in Collections: | 01 - Journal article |
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