Journal of Veterinary Medical Science | |
Prevalence and contamination levels of listeriamonocytogenes in ready-to-eat foods in Tokyo, Japan | |
Akemi KAI1  Akihiko HIRAI1  Yukako SHIMOJIMA1  Kenji SADAMASU1  Miki IDA1  Rie FUKUI1  Yukari NISHINO1  Akiko NAKAMA1  Sumiyo KURODA1  | |
[1] Department of Microbiology, Tokyo Metropolitan Institute of Public Health, 3�?24�?1 Hyakunin-cho, Shinjuku-ku, Tokyo 169�?0073, Japan | |
关键词: Listeria; Listeria monocytogenes; MPN; ready-to-eat food; serotype; | |
DOI : 10.1292/jvms.15-0708 | |
学科分类:兽医学 | |
来源: Japanese Society of Veterinary Science | |
【 摘 要 】
References(19)We surveyed prevalence and contamination levels of Listeriamonocytogenes in ready-to-eat foods between 2000 and 2012 in Tokyo. L.monocytogenes was isolated from 52 (1.7%) out of 2,980 samples. Comparing theprevalence in the study period, 2.2% were positive in the former period (2000�?2005) and1.2% in the latter (2006�?2012). Using the most probable number (MPN) technique, 32 sampleswere contaminated with fewer than 0.3 L. monocytogenes/g, 10 samples with0.3�?1.0/g and 4 samples with more than 1.0/g (the maximum was 2.3/g). The most commonserovar was 1/2a, followed by 1/2b, 4b and 1/2c. We revealed that ready-to-eat foods inTokyo were contaminated with L. monocytogenes, although the contaminationlevels were low.
【 授权许可】
Unknown
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