title: [Isolation of Staphylococcus aureus by the Baird Parker method from powdered milk].
abstract: There are many media recommended for the isolation of Staphylococcus aureus from foods, but only with some media one can obtain a good growth started with stressed cells. The Baird Parker (BP) medium is considered the best choice to recover stressed cells, however, it is not as good a medium to isolate Staphylococcus aureus from powder milk. Therefore, it is important to count with alternative media to enhance the chance for Staphylococcus aureus to grow from dehydrated products. Thirty-one powder milk samples contaminated with Staphylococcus aureus were analysed by Baird Parker method, employing four culture media: Baird Parker (BP), Baird Parker + tween + MgCl2 (BPTM), Pork plasma with bovine fibrinogen agar (PPF) and Salt Milk agar (SL). Staphylococcus aureus was isolated in SL, 38.7%; in BP, 3.2%; in BPTM, 6.4%; and PPF, 0%.
authors.affiliation: Departamento de Microbiología de la Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F., México.
authors.forename: M
authors.initials: M
authors.lastname: Sánchez Mendoza
authors.forename: E
authors.initials: E
authors.lastname: Fernández Rendón
authors.forename: L
authors.initials: L
authors.lastname: Mota de la Garza
mesh_terms: D000362:Agar; D000818:Animals; D001431:Bacteriological Techniques; D002417:Cattle / Q000097:blood; D003611:Dairy Products / Q000382:microbiology*; D005340:Fibrinogen; D005516:Food Microbiology; D015636:Magnesium Chloride; D008892:Milk / Q000382:microbiology*; D011136:Polysorbates; D013211:Staphylococcus aureus / Q000254:growth & development / Q000302:isolation & purification*; D013552:Swine / Q000097:blood
chemical_list: D011136:Polysorbates; D015636:Magnesium Chloride; D005340:Fibrinogen; D000362:Agar
vernacular_title: Aislamiento de Staphylococcus aureus por el método de Baird Parker a partir de leche en polvo.