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Assessment of sanitiser efficacy against Staphylococcus spp. isolated from Minas Frescal cheese producers in São Paulo, Brazil
International Dairy Journal ( IF 3.1 ) Pub Date : 2021-08-04 , DOI: 10.1016/j.idairyj.2021.105171
Anderson Clayton da Silva Abreu 1 , Bruna Lourenço Crippa 1 , Victória Vilaça Martins Alencar de Souza 1 , Karen Vanessa Munive Nuñez 1 , Jaqueline Milagres de Almeida 1 , Marjory Xavier Rodrigues 2 , Nathália Cristina Cirone Silva 1
Affiliation  

This study evaluated bactericidal efficacy test of sanitisers for benzalkonium chloride, sodium hypochlorite and peracetic acid, determined minimum inhibitory concentration (MIC) of sanitisers and assessed their effect on the reduction of biofilms produced by Staphylococcus spp. strains isolated from organic and conventionally produced Minas Frescal cheese dairy products. The MIC was determined at three different contact times (5, 10, and 15 min). Biofilms formed on stainless steel and the efficiency of sanitisers in removing the biofilms were investigated at contact times of 5 and 10 min and incubated for 24 and 48 h. All strains tested were able to form biofilm within 24 and 48 h for all evaluated sanitisers, indicating the MIC used in this study was not sufficient to inactivate biofilm formation. Therefore, the MICs obtained through the analysis of the microorganism in its planktonic form were not efficient to eliminate the biofilms formed.



中文翻译:

评估消毒剂对葡萄球菌的功效。从巴西圣保罗的 Minas Frescal 奶酪生产商中分离出来

本研究评估了消毒剂对苯扎氯铵、次氯酸钠和过氧乙酸的杀菌效力试验,确定了消毒剂的最低抑菌浓度 (MIC) 并评估了它们对减少葡萄球菌产生的生物膜的影响属 从有机和常规生产的 Minas Frescal 奶酪乳制品中分离的菌株。在三个不同的接触时间(5、10 和 15 分钟)确定 MIC。在 5 分钟和 10 分钟的接触时间并孵育 24 和 48 小时,研究了在不锈钢上形成的生物膜和消毒剂去除生物膜的效率。对于所有评估的消毒剂,所有测试的菌株都能够在 24 和 48 小时内形成生物膜,表明本研究中使用的 MIC 不足以灭活生物膜的形成。因此,通过分析浮游形式的微生物获得的 MIC 不能有效消除形成的生物膜。

更新日期:2021-08-17
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