{"title":"光活化氧化锌纳米颗粒破坏主要的食品病原体大肠杆菌O157:H7和单核增生李斯特菌ATCL3C 7644","authors":"K. Kairyte, Ž. Lukšienė","doi":"10.5755/J01.CT.61.3.2715","DOIUrl":null,"url":null,"abstract":"Food-borne diseases have been estimated to cause millions of hospitalizations and cost billions of dollars each year. It means that existing food safety technologies can not guarantee safe food. The aim of this study was to evaluate antimicrobial efficiency of photoactivated ZnO nanoparticles against food pathogens Escherichia coli O157:H7 and Listeria monocytogenes ATC L3 C 7644. The results showed that ZnO NPs have slight effect on the viability of bacteria in the dark, whereas photoactivated ZnO NPs exhibit pronounced bactericidal activity. At certain experimental conditions Gram-negative bacteria E. coli and Gram-positive bacteria L. monocytogenes were killed to undetectable level. Summarizing, photoactivated ZnO NPs have potential to be effective antimicrobial tool and can be used to inactivate harmful and pathogenic microorganisms. DOI: http://dx.doi.org/10.5755/j01.ct.61.3.2715","PeriodicalId":22505,"journal":{"name":"the Chemical Technology","volume":"1 1","pages":"32-36"},"PeriodicalIF":0.0000,"publicationDate":"2012-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Photoactivated ZnO nanoparticles destroy main food pathogens Escherichia coli O157:H7 and Listeria monocytogenes ATCL3C 7644\",\"authors\":\"K. Kairyte, Ž. Lukšienė\",\"doi\":\"10.5755/J01.CT.61.3.2715\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Food-borne diseases have been estimated to cause millions of hospitalizations and cost billions of dollars each year. It means that existing food safety technologies can not guarantee safe food. The aim of this study was to evaluate antimicrobial efficiency of photoactivated ZnO nanoparticles against food pathogens Escherichia coli O157:H7 and Listeria monocytogenes ATC L3 C 7644. The results showed that ZnO NPs have slight effect on the viability of bacteria in the dark, whereas photoactivated ZnO NPs exhibit pronounced bactericidal activity. At certain experimental conditions Gram-negative bacteria E. coli and Gram-positive bacteria L. monocytogenes were killed to undetectable level. Summarizing, photoactivated ZnO NPs have potential to be effective antimicrobial tool and can be used to inactivate harmful and pathogenic microorganisms. DOI: http://dx.doi.org/10.5755/j01.ct.61.3.2715\",\"PeriodicalId\":22505,\"journal\":{\"name\":\"the Chemical Technology\",\"volume\":\"1 1\",\"pages\":\"32-36\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-10-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"the Chemical Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5755/J01.CT.61.3.2715\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"the Chemical Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5755/J01.CT.61.3.2715","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
摘要
据估计,食源性疾病每年导致数百万人住院治疗,造成数十亿美元的损失。这意味着现有的食品安全技术并不能保证食品安全。研究了光活化氧化锌纳米颗粒对食品致病菌大肠杆菌O157:H7和单核增生李斯特菌ATC L3 C 7644的抑菌效果。结果表明,ZnO NPs在黑暗环境下对细菌的生存能力影响较小,而光活化的ZnO NPs则表现出明显的杀菌活性。在一定的实验条件下,革兰氏阴性菌大肠杆菌和革兰氏阳性菌单核增生乳杆菌被杀灭到检测不到的水平。综上所述,光活化ZnO NPs具有成为有效的抗菌工具的潜力,可用于灭活有害和致病微生物。DOI: http://dx.doi.org/10.5755/j01.ct.61.3.2715
Photoactivated ZnO nanoparticles destroy main food pathogens Escherichia coli O157:H7 and Listeria monocytogenes ATCL3C 7644
Food-borne diseases have been estimated to cause millions of hospitalizations and cost billions of dollars each year. It means that existing food safety technologies can not guarantee safe food. The aim of this study was to evaluate antimicrobial efficiency of photoactivated ZnO nanoparticles against food pathogens Escherichia coli O157:H7 and Listeria monocytogenes ATC L3 C 7644. The results showed that ZnO NPs have slight effect on the viability of bacteria in the dark, whereas photoactivated ZnO NPs exhibit pronounced bactericidal activity. At certain experimental conditions Gram-negative bacteria E. coli and Gram-positive bacteria L. monocytogenes were killed to undetectable level. Summarizing, photoactivated ZnO NPs have potential to be effective antimicrobial tool and can be used to inactivate harmful and pathogenic microorganisms. DOI: http://dx.doi.org/10.5755/j01.ct.61.3.2715