Dominguez C, Gomez I, Zumalacarregui J
Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, Spain.
J Food Prot. 2001 Dec;64(12):2075-7. doi: 10.4315/0362-028x-64.12.2075.
From March to November 2000, 170 samples of smoked fish and 182 samples of pâté for sale in retail outlets and supermarkets in the nine provinces of Castilla and León (Spain) were analyzed for the prevalence of Listeria monocytogenes and other Listeria spp. L. monocytogenes was isolated from 38 (22.3%) of the 170 samples of smoked fish analyzed. Twenty of these positive samples contained L. monocytogenes at >100 CFU/g. Other Listeria spp., such as Listeria innocua (26 isolates), Listeria grayi (9), Listeria welshimeri (3), Listeria seeligeri (3), and Listeria ivanovii (2), were also detected. L. monocytogenes was isolated from 5.4% of the 182 samples of pâté. Only 1 of the 10 positive samples harbored >100 L. monocytogenes CFU/g. Two other species of Listeria were observed in pâté: L. innocua (12 isolates) and L. grayi (2).
2000年3月至11月,对西班牙卡斯蒂利亚-莱昂自治区9个省的零售店和超市中出售的170份烟熏鱼样本和182份肉酱样本进行了分析,以检测单核细胞增生李斯特菌及其他李斯特菌属的流行情况。在170份被分析的烟熏鱼样本中,有38份(22.3%)分离出了单核细胞增生李斯特菌。其中20份阳性样本中的单核细胞增生李斯特菌含量超过100 CFU/g。还检测到了其他李斯特菌属,如无害李斯特菌(26株)、格氏李斯特菌(9株)、威氏李斯特菌(3株)、斯氏李斯特菌(3株)和伊氏李斯特菌(2株)。在182份肉酱样本中,5.4%分离出了单核细胞增生李斯特菌。10份阳性样本中只有1份的单核细胞增生李斯特菌含量超过100 CFU/g。在肉酱中还观察到另外两种李斯特菌:无害李斯特菌(12株)和格氏李斯特菌(2株)。