Pectins and pectic-oligosaccharides inhibit Escherichia coli O157 : H7 Shiga toxin as directed towards the human colonic cell line HT29
Olano-Martin, E., Williams, M.R., Gibson, G.R. and Rastall, R.A. (2003) Pectins and pectic-oligosaccharides inhibit Escherichia coli O157 : H7 Shiga toxin as directed towards the human colonic cell line HT29. Fems Microbiology Letters, 218 (1). pp. 101-105. ISSN 0378-1097
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To link to this article DOI: 10.1111/j.1574-6968.2003.tb11504.x
Pectins and pectic-oligosaccharides, as derived by controlled enzymatic hydrolysis, were evaluated for their ability to interfere with the toxicity of Shiga-like toxins from Escherichia coli O157:H7. Both types of material resulted in some degree of protection but this was significantly higher (P > 0.01) with the oligosaccharide fractions (giving 90-100% cell survival, compared to 70-80% with the polymer). An effect of methylation on the protective effect was detected with lower degrees being more active. The pectic-oligosaccharides and galabiose, the minimum toxin receptor analogue, were shown to inhibit toxicity and were both protective at 10 mg ml(-1), but not at lower concentrations. (C) 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.
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