期刊
JOURNAL OF FOOD PROTECTION
卷 77, 期 11, 页码 1919-1928出版社
INT ASSOC FOOD PROTECTION
DOI: 10.4315/0362-028X.JFP-14-132
关键词
-
资金
- Cornell University Agricultural Experiment Station federal formula funds from the National Institute of Food and Agriculture, U.S. Department of Agriculture (USDA) [NYC-143462]
- USDA National Integrated Food Safety Initiative [2008-51110-04333, 2008-51110-0688]
- NIFA [583539, 2008-51110-04333] Funding Source: Federal RePORTER
Listeria species have been isolated from diverse environments, often at considerable prevalence, and are known to persist in food processing facilities. The presence of Listeria spp. has been suggested to be a marker for Listeria monocyto genes contamination. Therefore, a study was conducted to (i) determine the prevalence and diversity of Listeria spp. in produce production and natural environments and (ii) identify geographical and/or meteorological factors that affect the isolation of Listeria spp. in these environments. These data were also used to evaluate Listeria spp. as index organisms for L. monocyto genes in produce production environments. Environmental samples collected from produce production (n = 588) and natural (n = 734) environments in New York State were microbiologically analyzed to detect and isolate Listeria spp. The prevalence of Listeria spp. was approximately 33 and 34% for samples obtained from natural environments and produce production, respectively. Coisolation of L. monocyto genes and at least one other species of Listeria in a given sample was recorded for 3 and 9% of samples from natural environments and produce production, respectively. Soil moisture and proximity to water and pastures were highly associated with isolation of Listeria spp. in produce production environments, while elevation, study site, and proximity to pastures were highly associated with isolation of Listeria spp. in natural environments, as determined by randomForest models. These data show that Listeria spp. were prevalent in both agricultural and nonagricultural environments and that geographical and meteorological factors associated with isolation of Listeria spp. were considerably different between the two environments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据