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Inhibition of Listeria monocytogenes by Lactobacillus plantarum is abolished by food intake, in an in vitro simulation of the pig colon

Published online by Cambridge University Press:  05 November 2021

K. Hillman ,
R. Khaddour  and
D. R. Fenlon
K. Hillman
Affiliation:
Microbiology Unit, The Scottish Agricultural College, 581 King Street, Aberdeen AB24 5UD, United Kingdom
R. Khaddour
Affiliation:
Microbiology Unit, The Scottish Agricultural College, 581 King Street, Aberdeen AB24 5UD, United Kingdom The Robert Gordon University, School of Food and Consumer Studies, Aberdeen AB9 2PG, United Kingdom
D. R. Fenlon
Affiliation:
Microbiology Unit, The Scottish Agricultural College, 581 King Street, Aberdeen AB24 5UD, United Kingdom
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Extract

Probiotics are live microbial cultures fed to animals with the intention of promoting intestinal health. However, one of the problems with these preparations is the variability in their effectiveness, reasons for which include genetic and physiological differences between herds of animals or between individuals, and the type of feed presented to the animals. This study has examined the effects of different food types on the efficacy of a strain of Lactobacillus plantarum as an inhibitor of Listeria monocytogenes. The strain of L. plantarum used (PF31) has been previously shown to inhibit the growth of the porcine enteric pathogen Escherichia coli O 149:K88:K91 in coculture (Hillman and Fox, 1994). In a subsequent series of tests, L. plantarum PF31 was also shown to inhibit the growth of List, monocytogenes in coculture.

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Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 164
Copyright
Copyright © The British Society of Animal Science 1998

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References

Hillman, K. and Fox, A. (1994) The effects of porcine faecal lactobacilli on the rate of growth of enterotoxigenic Escherichia coli O 149:K88:K91. Letters in Applied Microbiology 19: 497–500.10.1111/j.1472-765X.1994.tb00991.xCrossRefGoogle Scholar
Hillman, K, Murdoch, T.A.. Spencer, R.J. and Stewart, C.S. (1994) Inhibition of enterotoxigenic Escherichia coli by the microflora of the porcine ileum, in an in vitro semicontinuous culture system. Journal of Applied Bacteriology 76: 294–300.10.1111/j.1365-2672.1994.tb01631.xCrossRefGoogle Scholar