Fate of Listeria monocytogenes during manufacture and ripening of semi-hard cheese |
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| Authors: | L. DOMINGUEZ J. F. F. GARAYZABAL J. A. VAZQUEZ J. L. BLANCO G. SUAREZ |
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| Affiliation: | Departamento de Microbiologia e Immunologia, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain |
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| Abstract: | Semi-hard cheeses were experimentally elaborated with pasteurized milk from sheep, goat and cow (15: 35: 50) and inoculated to contain 1.9 times 105 Listeria monocytogenes /ml in cheeses 1 and 2 and 4 times 103 L. monocytogenes /ml in cheeses 3 and 4. Counts of L. monocytogenes were determined by direct surface plating of samples on listeria selective agar medium. The results show the substantial survival of L. monocytogenes present in milk during manufacture and ripening of this type of cheese. |
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