Un milieu gélosé pour le dénombrement direct de Staphylococcus aureus : milieu au plasma de porc pour S. aureus (PPSA)

Autor: G. Mocquot, J. J. Devoyod, Liliane Millet
Rok vydání: 1976
Předmět:
Zdroj: Canadian Journal of Microbiology. 22:1603-1611
ISSN: 1480-3275
0008-4166
DOI: 10.1139/m76-236
Popis: A selective agar medium (pork plasma medium for S. aureus (PPSA)) enables the direct enumeration of coagulase-positive staphylococci. This medium is based on the Baird-Parker agar without egg yolk and is supplemented with pig plasma. Colonies of Staphylococcus aureus are surrounded by a halo of precipitated fibrin. When foods such as dairy products contain large numbers of egg yolk – negative strains of S. aureus, the PPSA agar has the advantage over egg yolk containing media such as Baird-Parker agar that fewer suspect colonies have to be confirmed.
Databáze: OpenAIRE