Study of Listeria spp. occurrence in Olomouc cheese-cakes manufacture

Occurrence of the Listeria spp. in ripening soft cheeses was studied. Detection of Listeria spp. was performed according to the standard CSN ISO 10560 after previous verification of selectivity of the nutrient media Oxford and PALCAM using pure cultures. Continuous occurrence of Listeria spp. in Olo...

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Published inBulletin Potravinarskeho Vyskumu (Slovak Republic Vol. 38; no. 4
Main Authors Vytrasova, J, Pejchalova, M, Merkova, Z. (Chemicko-technologicka Fakulta, Pardubice (Czech Republic). Katedra Biologickych a Biochemickych Ved)
Format Journal Article
LanguageEnglish
Published 1999
Subjects
ALIMENTOS
CHEESE
CONTAMINACION
CONTAMINATION
FOODS
FROMAGE
IMMUNOLOGICAL TECHNIQUES
LISTERIA MONOCYTOGENES
PRODUIT ALIMENTAIRE
QUESO
TECHNIQUE IMMUNOLOGIQUE
TECNICAS INMUNOLOGICAS
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Summary:Occurrence of the Listeria spp. in ripening soft cheeses was studied. Detection of Listeria spp. was performed according to the standard CSN ISO 10560 after previous verification of selectivity of the nutrient media Oxford and PALCAM using pure cultures. Continuous occurrence of Listeria spp. in Olomouc cheese-cakes was confirmed by microbiological analysis. Thus, the manufacture was monitored in order to find possible sources of contamination. To accelerate detection, the method of immunomagnetic separation of Listeria spp. was utilized. The IMS method saved the time of analysis in comparison with the standard cultivation method by one day
Bibliography:2000000006
Q03
ISSN:0231-9950