A Quantitative Study of Enterotoxin Production by Sheep Milk Staphylococci

Overview

Journal Appl Environ Microbiol

Specialties Environmental Health
Microbiology

Date 1988 Feb 1

PMID 3355142

Citations 14

Authors

L Bautista

P Gaya

M Medina

M Nunez

Affiliations

Soon will be listed here.

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.

Citing Articles

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Enterotoxigenic potential of coagulase-negative staphylococci.

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