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首页> 外文期刊>Food microbiology >Incidence of Listeria monocytogenes in different food products commercialized in Portugal
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Incidence of Listeria monocytogenes in different food products commercialized in Portugal

机译：在葡萄牙商业化的不同食品中单核细胞增生李斯特菌的发生率

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摘要

Several types of food products on sale in Portugal, were examined for the presence of Listeria monocytogenes. Secondary enrichments, in Fraser broth, were analysed by the mini-Vidas LMO, enzyme-linked fluorescent immunoassay technique. Positive samples were confirmed by isolation on Oxford and PALCAM selective agars followed by biochemical characterization. Of 1035 samples, 72 (7.0%) were positive for L. monocytogenes, the majority being from raw products (milk, meat, fish, flour) although some heat-processed or fermented foods (ready-to-eat) were also positive. In Portugal, a predilection for fresh cheese was indicated as a potential risk for consumers.
机译：检查了在葡萄牙出售的几种类型的食品中是否存在李斯特菌。通过小型维达斯LMO酶联荧光免疫分析技术分析了Fraser肉汤中的二级富集。通过在牛津和PALCAM选择性琼脂上分离，然后进行生化鉴定，确认阳性样品。在1035个样本中，有72个（7.0％）的单核细胞增生李斯特氏菌呈阳性，尽管来自某些热处理或发酵食品（即食）也呈阳性，但大多数来自原料（牛奶，肉，鱼，面粉）。在葡萄牙，对新鲜奶酪的偏爱被指示为消费者的潜在风险。

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