Incidence and Characterization of Listeria monocytogenes from Domestic and Imported Foods in Korea
Abstract:A total of 1,537 domestic and imported food products were examined for the incidence of Listeria monocytogenes between 1993 and 1997 in Korea. L. monocytogenes was detected using the U. S. Department of Agriculture isolation method. Isolated L. monocytogenes was confirmed by polymerase chain reaction with hly1 and hly2 primers designed from the listeriolysin O. Overall, 122 samples (7.9%) contained L. monocytogenes. The rate of isolation was 4.3% for beef, 19.1% for pork, 30.2% for chicken, 1.2% for shellfish, 4.4% for raw milk, 4.4% for frozen smoked mussels, and 6.1% for ice cream. No L. monocytogenes was found in pasteurized milk, pasteurized processed cheese, saltwater fish, dried seafoods, or ham. The overall incidence was lower than that reported in previous studies from other countries. Most isolates were serotype 1/2b except for chicken, in which serotype 1/2a was predominant. The serotyping results might imply the presence of food or geography-specific L. monocytogenes strains.
Document Type: Research Article
Affiliations: 1: Division of Food Microbiology, Korea Food and Drug Administration, 5 Nokbon-Dong, Eunpyung-Ku, Seoul, 122–020, Korea 2: Department of Biological Science, Sook-Myung Womens University, Chungpa-Dong Yongsan-Ku, Seoul, 140–742, Korea
Publication date: February 1, 2000
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