Seasonal Prevalence of
Escherichia coli
O157:H7,
Listeria spp. and
Salmonella spp.
in Fermented Sausages, Sosis
and Salami in Eastern Turkey
Gokben Ozbey1*,
Ulku Ozbey2 and Filiz Kok3
1Vocational School of Health Services,
Firat University, 23119, Elazig, Turkey;
2School of Health Sciences, Munzur University, 6200,
Tunceli, Turkey; 3Department of Food Science and
Technology, Faculty of Veterinary Science, University of Adnan
Menderes, 09016, Aydin, Turkey *Corresponding author:
gokben.ozbey@yahoo.com
Abstract
The goal of our study was to characterize the proportions and seasonal
prevalence of Escherichia coli (E. coli) O157:H7, Listeria
spp. and Salmonella spp. in fermented sausages, sosis and salami. A
total of 192 samples consisting of sausage (n=96), sosis (n=48) and salami
(n=48) purchased from different butcher shops and markets in the Elazig Province
of eastern Turkey for one year duration were processed and tested by culture and
polymerase chain reaction (PCR) for the presence of E. coli O157:H7,
Listeria spp. and Salmonella spp. L. innocua was found to
be the most predominant Listeria spp. in fermented sausages and sosis
whereas, L. monocytogenes (1.04%) and Salmonella spp. (1.04%)
were detected at much lower prevalence in fermented sausage. No L.
monocytogenes and Salmonella spp. were determined in salami
samples. In addition, no Salmonella spp. was detected in sosis samples. L.
welshimeri (12.5%) was observed most frequently on salami samples. No E.
coli O157:H7 was isolated in any samples of fermented sausage, sosis and salami.
Seasonal prevalence of Listeria spp. in fermented sausages, sosis and
salami was highest in July, with no L. monocytogenes and Salmonella
spp. being isolated during autumn, winter and spring months of the year.
Although the proportion of L. monocytogenes in fermented sausages and
sosis is much lower in the current study, the presence of L. monocytogenes
in these samples in the Elazig Province of eastern Turkey could still present a
major public health threat.
Key words:
E. coli
O157:H7, Listeria spp., Salami, Salmonella
spp, Sausage, Sosis