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首页> 外文期刊>Radiation Physics and Chemistry >Application of gamma irradiation for inactivation of three pathogenic bacteria inoculated into meatballs
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Application of gamma irradiation for inactivation of three pathogenic bacteria inoculated into meatballs

机译：γ射线辐照在肉丸中三种致病菌灭活中的应用

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摘要

In this research,the effect of gamma irradiation on the inactivation of Escherichia coli 0157:H7(ATCC 33150),Staphylococcus aureus(ATCC 2392)and Salmonella typhimurium(NRRL 4463)inoculated into Tekirdag meatballs was investigated.The meatball samples were inoculated with pathogens and irradiated at the absorbed doses of 1,2.2,3.2,4.5 and 5.2 kGy.E coli 0157:H7 count in 1 kGy irradiated meatballs stored in the refrigerator for 7 days was detected to be 4 log cfu/g lower than the count in nonirradiated samples(p<0.05).S.aureus counts were decreased to 4 log cfu/g after being exposed to irradiation at a dose of 1 kGy.Although it was ineffective on elimination of S.typhimurium,irradiation at a dose of 3.2 kGy reduced E coli 0157:H7 and S.aureus counts under detectable values in the meatballs.However,none of the test organisms were detected in the samples after irradiation with 4.5 kGy doses.
机译：本研究研究了Tekirdag肉丸中γ射线辐射对大肠杆菌0157：H7（ATCC 33150），金黄色葡萄球菌（ATCC 2392）和鼠伤寒沙门氏菌（NRRL 4463）灭活的影响。并以1,2.2、3.2、4.5和5.2 kGy的吸收剂量进行辐照。在冰箱中存放7天的1 kGy辐照肉丸中的大肠杆菌0157：H7计数被检测到比在标准条件下的计数低4 log cfu / g。非辐照样品（p <0.05）。以1 kGy剂量辐照后，金黄色葡萄球菌计数降至4 log cfu / g。尽管对消除鼠伤寒沙门氏菌无效，但以3.2 kGy辐照将肉丸中的大肠杆菌0157：H7和金黄色葡萄球菌计数降低到可检测值以下。但是，在以4.5 kGy剂量辐照后，样品中未检测到任何测试生物。

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