Meza-Bone Gary Alex, Meza Bone Jessica Sayonara, Cedeño Ángel, Martín Irene, Martín Alberto, Maddela Naga Raju, Córdoba Juan J
Ruminology Laboratory, Faculty of Animal and Biological Sciences, State Technical University of Quevedo, Quevedo 120301, Ecuador.
Instituto Superior Tecnológico Ciudad de Valencia, Los Ríos, Quevedo 948196, Ecuador.
Foods. 2023 Aug 4;12(15):2956. doi: 10.3390/foods12152956.
is a foodborne pathogen that causes listeriosis and can be a problem in areas where meat products are sold at unregulated storage temperatures. In this work, the prevalence of was determined in the five most widely traded meat products in the province of Quevedo (Ecuador): bacon, "chorizo paisa", grilled hamburger meat, mortadella, and salami. A total of 1000 samples of these products were analyzed in two seasons of the year (dry season/rainy season). All isolates were confirmed by PCR with primers designed for the gene. Furthermore, the positive samples were quantified for . Of the 1000 meat products analyzed, 163 were positive for (16.3%). The prevalence of in the two seasons in different meat products was as follows: 22.5% in mortadella, 19% in hamburger meat, 15% in bacon, 14.5% in chorizo paisa and 10.5% in salami. In addition, the concentration of in most of the positive samples was in the range of 4-6 log CFU/g or even higher. The results show the need for improvements in the hygienic measures and meat storage temperatures in Quevedo (Ecuador) to avoid risks of foodborne listeriosis.
是一种食源性病原体，可导致李斯特菌病，在肉类产品以不受监管的储存温度销售的地区可能会成为一个问题。在这项工作中，测定了厄瓜多尔昆维多省交易最广泛的五种肉类产品中的流行情况：培根、“派萨香肠”、烤汉堡肉、意大利熟火腿和萨拉米香肠。在一年的两个季节（旱季/雨季）对这些产品的总共1000个样本进行了分析。所有分离株均通过针对基因设计的引物进行PCR确认。此外，对阳性样本进行了定量。在分析的1000种肉类产品中，163种对呈阳性（16.3%）。不同肉类产品在两个季节中的流行情况如下：意大利熟火腿中为22.5%，汉堡肉中为19%，培根中为15%，派萨香肠中为14.5%，萨拉米香肠中为10.5%。此外，大多数阳性样本中的浓度在4-6 log CFU/g范围内，甚至更高。结果表明，厄瓜多尔昆维多需要改进卫生措施和肉类储存温度，以避免食源性李斯特菌病的风险。
