Prevalence of Listeria spp and L. monocytogenes in Home made Pottery Cheese

Abstract

Presence of Listeria spp. and L. monocytogenes in traditional pottery cheeses produced at eight different provinces in Turkey was investigated. A total of 279 samples were surveyed. Apart from L. monocytogenes, L. ivanovii and L. gravyi, L. innocua were determined from the cheese samples, while L. welshimeri and L. seeligeri were not detected in any of the samples. 21.5% of the samples were contaminated with Listeria spp. However 15.77% of samples was positive for L. monocytogenes. The incidence of L. grayi, L. innocua and L. ivanovii isolated from samples were 2.15%, 1.43% and 2.15%, respectively. A total of 60 Listeria spp. positive samples were analyzed and it was determined that. L. monocytogenes was the most prevalent species with 44 (73.3%) isolates recovered, while 16 (26.6%) belonged to other Listeria spp.

Türkiye'nin sekiz değişik illerinde toplanan geleneksel Küp peynirinde Listeria spp ve L.monocytogenes varlığı ve isnsidansı araştırılmıştır. Toplanan 279 peynir örneğinin Listeria spp % 21.5, L. monocytogenes %15.77’de, L. Grayi %2.15, L. İnnocua %1.43 ve L. İvanovii % 2.15 oranında kontamineolduğu belirlenmiş,L. welshimeri ve L. seeligeri ise tespit edilmemiştir. Listeria spp. Pozitif toplam 60 örnekte en yaygın tür olarak 44 (% 73.3)’ünde L. Monocytogenes ve 16 (%26.6)’ sında ise diğer Listeria spp. belirlenmiştir.