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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/1662

Title: Efeito de bioconservantes no crescimento e sobrevivência de Listeria monocytogenes em queijo de ovelha
Other Titles: Effect of biopreservatives on growth and survival of Listeria monocytogenes in ewe's cheese
Authors: Pintado, Cristina Maria Baptista Santos
Advisor: Ferreira, Maria Adélia da Silva Santos
Sousa, Isabel Maria Nunes de
Keywords: Listeria monocytogenes
cheese
antimicrobial coatings
nisin
molecular typage
ovine listeriosis
queijo de ovelha
listeriose ovina
nisina
tipagem molecular
Issue Date: 2009
Abstract: Strains of Listeria monocytogenes, L.innocua and L. seeligeri, isolated from two regions producing ewe's cheese (Castelo Branco and Tolosa) were characterized. Using molecular typage (AFLP, PFGE and molecular serotyping) it was possible to do the association between a case of asymptomatic ovine listeriosis and the contamination of cheese made with raw milk and the environment, as the same molecular type was revealed (AFLP IV-1, PFGE 11 and molecular serogroup 4. The molecular characterization of 185 isolates permitted to study the routes of contamination and the persistence of L. monocytogenes with cheese processing plant.
Description: Doutoramento em Engenharia Agro-industrial - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/1662
Appears in Collections:BISA - Teses de Doutoramento / Doctoral Thesis

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Tese_Doutoramento_Cristina_Pintado.pdfTese de Doutoramento1.3 MBAdobe PDFView/Open
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