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首页> 外文会议>Πανελληνιο Συνεδριο ΤροΦιμων >OCCURRENCE OF LISTERIA MONOCYTOGENES, STAPHYLOCOCCUS AUREUS AND SALMONELLA SPP IN GREEK WHEY CHEESES IN THE PREFECTURE OF TRIKALA
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OCCURRENCE OF LISTERIA MONOCYTOGENES, STAPHYLOCOCCUS AUREUS AND SALMONELLA SPP IN GREEK WHEY CHEESES IN THE PREFECTURE OF TRIKALA

机译：特里卡拉州希腊乳清干酪中单核细胞增多性单核细胞增多症，金黄色葡萄球菌和沙门氏菌的发生

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Myzithra and Anthotyros are Greek traditional whey cheeses. Considering that fresh whey cheeses have high moisture content, high pH (>6.0) and a low salt content, these dairy products are very susceptible to microbial spoilage and are showing an increased potential for survival/growth of pathogens. Moreover, contamination of these cheeses may further occur during production, storage and in retail shops. The aim of this work was to study the presence of the pathogens Listeria monocytogenes, Staphylococcus aureus and Salmonella spp in samples of Greek whey cheeses Myzithra and Anthotyros from retail shops located in the prefecture of Trikala, Greece. 50 samples of whey cheeses (20 samples of Myzithra and 30 samples of Anthotyros), were collected. The microbiological examination of samples was performed using selective growth media and subsequent confirmation by serological and biochemical methods. The samples with populations of S. aureus higher than 105 cfu/g were furthermore tested for the presence of staphylococcal enterotoxins by using an enzyme-linked immunosorbent test. Microbiological analysis showed that the populations of S. aureus in 6 samples (3 Myzithra and 3 Anthotyros) were higher than 10s cfu/g. These samples were furthermore tested for the presence of staphylococcal enterotoxins and all were found negative. L. monocytogenes was isolated from 2 samples of Myzithra and 4 samples of Anthotyros, whereas the populations of the pathogen were lower than 100 cfu/g in all positive samples. Salmonella spp was not detected in any of the samples.
机译：Myzithra和Anthotyros是希腊传统的乳清干酪。考虑到新鲜的乳清干酪具有高水分含量，高pH（> 6.0）和低盐含量，这些乳制品非常容易受到微生物的破坏，并显示出增加的病原体存活/生长潜力。而且，这些奶酪的污染可能在生产，储存和零售商店中进一步发生。这项工作的目的是研究来自希腊特里卡拉县零售商店的希腊乳清干酪Myzithra和Anthotyros样品中的单核细胞增生李斯特菌，金黄色葡萄球菌和沙门氏菌等病原体的存在。收集了50个乳清干酪样品（Myzithra的20个样品和Antytyros的30个样品）。使用选择性生长培养基进行样品的微生物学检查，然后通过血清学和生化方法进行确认。此外，使用酶联免疫吸附试验测试了金黄色葡萄球菌种群高于105 cfu / g的样品中是否存在葡萄球菌肠毒素。微生物学分析表明，6个样品（3个Myzithra和3个按蚊）的金黄色葡萄球菌种群均高于10s cfu / g。此外，还对这些样品进行了葡萄球菌肠毒素的检测，结果均为阴性。从2个Myzithra样品和4个Anthotyros样品中分离出单核细胞增生李斯特菌，而所有阳性样品中病原菌的数量均低于100 cfu / g。在任何样品中均未检出沙门氏菌。

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