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Journal of Clinical Microbiology logoLink to Journal of Clinical Microbiology
. 1997 Aug;35(8):2155–2156. doi: 10.1128/jcm.35.8.2155-2156.1997

Simple color tests based on an alanyl peptidase reaction which differentiate Listeria monocytogenes from other Listeria species.

A G Clark 1, J McLaughlin 1
PMCID: PMC229924  PMID: 9230403

Abstract

The hydrolysis of DL-alanine-beta-naphthylamide and D-alanine-p-nitroanilide for identification of Listeria spp. has been studied with 227 cultures. All species of Listeria, except L. monocytogenes, hydrolyzed these substrates. The reactions were detected by simple chromogenic reactions and could substitute for the CAMP test.

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Selected References

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