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KMID : 0380420110350040214
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Journal of Prventive Veterinary Medicine
2011 Volume.35 No. 4 p.214 ~ p.219
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Prevalence of Listeria monocytogenes isolated from Livestock processed products in Korea
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Go Eun-Kyung
Park Hyun-Jung
Wee Sung-Hwan
Heo Eun-Jeong
Kim Young-Jo
Moon Jin-San
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Abstract
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We investigated the prevalence of the Listeria monocytogenes from livestock processed products in processing plants and retail markets of Korea from 2010 to 2011. A total of 1,380 samples were collected; Meat processed products such as cooked ham and sausage, jerked meat, and meat extract products. Milk processed products such as milk, butter, cheese, and ice cream. Egg processed products such as whole egg liquid and pidan. L. monocytogenes were isolated from samples using listeria enrichment broth, fraser broth and Oxford agar, and counted in Oxford agar. The three of L. monocytogenes strains (1.16%) were isolated from sausages, two (0.73%) from mixed pressed ham and one (0.51%) from jerked meat, respectively. The colony forming unit (CFU) of L. monocytogenes from all samples were below 10 CFU/g. The four isolates (66.6%) were 1/2b except two isolates (1/2a) in the serotypes. Further studies are needed to understand the transmission route of L. monocytogenes, including a survey of food handlers, environments of retail markets, and all potential risk factors in cooked sausages, mixed pressed hams, and jerked meat processing.
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KEYWORD
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Livestock Processed Products, Listeria monocytogenes, Prevalence
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