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. 1988 Feb;54(2):566–569. doi: 10.1128/aem.54.2.566-569.1988

A quantitative study of enterotoxin production by sheep milk staphylococci.

L Bautista 1, P Gaya 1, M Medina 1, M Nuñez 1
PMCID: PMC202492  PMID: 3355142

Abstract

Of 124 staphylococcal strains isolated from sheep milk, 78 produced enterotoxin A, B, C, or D when evaluated by an enzyme-linked immunosorbent assay. Enterotoxins A and D, elaborated by 44 and 43 strains, respectively, showed the highest incidence. Enterotoxin production by coagulase-negative strains (one Staphylococcus cohnii, three S. epidermidis, five S. haemolyticus, and four S. xylosus) was detected. Linear and logarithmic-logarithmic regressions of optical density on enterotoxin concentration yielded the best-fitting equations for enterotoxin quantitation. A significantly higher incidence of enterotoxin producers and significantly higher levels of enterotoxins produced were recorded for coagulase-positive, thermostable nuclease-positive, hemolysis-positive, or mannitol-positive strains. Mannitol utilization was the best test for discriminating between enterotoxigenic and nonenterotoxigenic staphylococci.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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