Microbial characteristics of Pecorino processed cheese spreads
1999; EDP Sciences; Volume: 79; Issue: 6 Linguagem: Inglês
10.1051/lait
ISSN1297-9694
AutoresFrancesca Palmas, Sofia Cosentino, Maria Elisabetta Fadda, Maura Deplano, Valeria Mascia,
Tópico(s)Listeria monocytogenes in Food Safety
ResumoThis study was designed to compare the microbiological quality of Pecorino processed cheese spreads manufactured in a mechanized factory and in small artisanal dairies.The 118 factorymade spreads analyzed were characterized by generally low microbial counts (lower than 10 3 cfu-g"), while the 98 artisanal products showed a high variability in microbiological quality, with total aerobic mesophilic counts often exceeding 10 5 cfu•g-1 • From a qualitative point of view, coliforms, S. aureus and Gram negative psychrotrophs were isolated only in artisanal samples.Spore-forming bacteria, yeasts and moulds were isolated from both types of products but they were observed in higher percentages and with higher values in artisanal ones.The results of our study seem to confirm that the application of a well-standardized and mechanized procedure, which minimizes the manual handling of the product, combined with proper hygiene practices during manufacturing helps to reduce the risk of developing food safety and/or spoilage problems in this kind of dairy products.© Inra/Elsevier, Paris.Pecorino processed cheese spreads / microbial characteristic / organoleptic characteristic Résumé -Caractéristiques microbiologiques de crème de Pecorino.On a effectué une étude pour évaluer la qualité microbiologique de 216 échantillons de crème de Pecorino.Parmi ces échantillons, 118 ont été produits dans une structure unique mécanisée et 98 dans différentes fromageries artisanales.Les résultats de notre enquête ont confirmé que la standardisation et la mécanisation de toutes les opérations de transformation dans une structure unique mécanisée est une condition indispensable pour obtenir des produits de bonne qualité.En effet l'absence de contact manuel avec le produit pendant les différentes phases de transformation a permis d'obtenir des produits de bonne qualité microbiologique qui ont gardé leurs caractéristiques initiales et qui n'ont pas subi de modifications physico-structurales jusqu'à trois mois.
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