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Prevalence of Listeria monocytogenes in different kinds of meat in Tehran province, Iran

Prevalence of Listeria monocytogenes in different kinds of meat in Tehran province, Iran Purpose – The purpose of this paper is to determine the prevalence of Listeria monocytogenes as an important foodborne pathogen in different kinds of meat. Design/methodology/approach – In total, 410 samples, including fresh and frozen meats of turkey, quail, chicken, ostrich, cattle, sheep and camel, fresh chicken liver and fresh minced meat were gathered and then analyzed according to USDA-FSIS method. To enumerate L. monocytogenes , the MPN procedure was used and also, strains were serotyped by using commercial specific antisera. Findings – It was found that 28.05 percent of samples were positive for L . monocytogenes and the contamination of beef meat was higher than the others. The range of microbial load was from <2 to 940 MPN g−1. Most of the samples (94.39 percent) had a microbial load of <100 MPN g−1. Moreover, 56 percent of the strains belonged to serogroup 1, especially to 1/2a, although, the most frequently isolated serotype was serotype 4b (38.3 percent) in all samples. These findings indicate the potential risk of contamination in different kinds of meats by L. monocytogenes . Originality/value – This survey is of academic value and of value to those working in the food hygiene and safety. Also, to the best knowledge of these researchers, there has been no serious research on this topic with all its aspects in Iran. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png British Food Journal Emerald Publishing

Prevalence of Listeria monocytogenes in different kinds of meat in Tehran province, Iran

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0007-070X
DOI
10.1108/BFJ-09-2013-0268
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to determine the prevalence of Listeria monocytogenes as an important foodborne pathogen in different kinds of meat. Design/methodology/approach – In total, 410 samples, including fresh and frozen meats of turkey, quail, chicken, ostrich, cattle, sheep and camel, fresh chicken liver and fresh minced meat were gathered and then analyzed according to USDA-FSIS method. To enumerate L. monocytogenes , the MPN procedure was used and also, strains were serotyped by using commercial specific antisera. Findings – It was found that 28.05 percent of samples were positive for L . monocytogenes and the contamination of beef meat was higher than the others. The range of microbial load was from <2 to 940 MPN g−1. Most of the samples (94.39 percent) had a microbial load of <100 MPN g−1. Moreover, 56 percent of the strains belonged to serogroup 1, especially to 1/2a, although, the most frequently isolated serotype was serotype 4b (38.3 percent) in all samples. These findings indicate the potential risk of contamination in different kinds of meats by L. monocytogenes . Originality/value – This survey is of academic value and of value to those working in the food hygiene and safety. Also, to the best knowledge of these researchers, there has been no serious research on this topic with all its aspects in Iran.

Journal

British Food JournalEmerald Publishing

Published: Jan 5, 2015

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