Pamplona Pagnossa Jorge, Rocchetti Gabriele, Bezerra Jadson Diogo Pereira, Batiha Gaber El-Saber, El-Masry Eman A, Mahmoud Mohamed H, Alsayegh Abdulrahman A, Mashraqi Abdullah, Cocconcelli Pier Sandro, Santos Cledir, Lucini Luigi, Hilsdorf Piccoli Roberta
Health and Biological Sciences Institute, Pontifical Catholic University-PUC Minas, Poços de Caldas, Brazil.
Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy.
Front Microbiol. 2022 May 25;13:769110. doi: 10.3389/fmicb.2022.769110. eCollection 2022.
Cross-adaptation phenomena in bacterial populations, induced by sublethal doses of antibacterial solutions, are a major problem in the field of food safety. In this regard, essential oils and their major compounds appear as an effective alternative to common sanitizers in food industry environments. The present study aimed to evaluate the untargeted metabolomics perturbations of serovar Enteritidis that has been previously exposed to the sublethal doses of the major components of essential oils: cinnamaldehyde, citral, and linalool (CIN, CIT, and LIN, respectively). Cinnamaldehyde appeared to be the most efficient compound in the assays evaluating the inhibitory effects [0.06% (v/v) as MBC]. Also, preliminary tests exhibited a phenotype of adaptation in planktonic and sessile cells of . Enteritidis when exposed to sublethal doses of linalool, resulting in tolerance to previously lethal concentrations of citral. A metabolomics approach on Enteritidis provided an important insight into the phenomenon of cross-adaptation induced by sublethal doses of major compounds of some essential oils. In addition, according to the results obtained, when single molecules were used, many pathways may be involved in bacterial tolerance, which could be different from the findings revealed in previous studies regarding the use of phytocomplex of essential oils. Orthogonal projection to latent structures (OPLS) proved to be an interesting predictive model to demonstrate the adaptation events in pathogenic bacteria because of the global engagement to prevent and control foodborne outbreaks.
由亚致死剂量的抗菌溶液诱导的细菌群体中的交叉适应现象是食品安全领域的一个主要问题。在这方面,精油及其主要成分似乎是食品工业环境中常用消毒剂的有效替代品。本研究旨在评估先前暴露于亚致死剂量的精油主要成分(分别为肉桂醛、柠檬醛和芳樟醇,即CIN、CIT和LIN)的肠炎沙门氏菌血清型的非靶向代谢组学扰动。在评估抑制作用的试验中,肉桂醛似乎是最有效的化合物[MBC为0.06%(v/v)]。此外,初步试验显示,肠炎沙门氏菌的浮游细胞和固着细胞在暴露于亚致死剂量的芳樟醇时表现出适应表型,从而对先前致死浓度的柠檬醛产生耐受性。对肠炎沙门氏菌的代谢组学方法为一些精油主要化合物的亚致死剂量诱导的交叉适应现象提供了重要见解。此外,根据所得结果,当使用单一分子时,许多途径可能参与细菌耐受性,这可能与先前关于使用精油植物复合物的研究结果不同。由于在预防和控制食源性疾病暴发方面的全面参与,正交投影到潜在结构(OPLS)被证明是一个有趣的预测模型,可用于证明病原菌中的适应事件。