Airborne Listeria spp. in the red meat processing industry
2011
Dobeic, M.,University of Ljubljana (Slovenia). Inst. for Environmental and Animal Hygiene with Ethology | Kenda, E.,University of Ljubljana (Slovenia). Inst. for Environmental and Animal Hygiene with Ethology | Micunovic, J.,University of Ljubljana (Slovenia). Inst. for Microbiology and Parasitology | Zdovc, I.,University of Ljubljana (Slovenia). Inst. for Microbiology and Parasitology
The aim of this study was to determine the potential presence of the airborne Listeria spp. and its correlation with the aerobic mesophilic bacteria and Listeria carcass contamination in three red meat slaughtering and three processing plants. Airborne L. seeligeri and L. innocua were determined using 8 (5.06%, n = 158) air samples taken on the locations characteristic for aerosol generating and in a chilly environment. The positive airborne samples of Listeria spp. were in an insignificant relation with the highest airborne bacteria counts. On the carcass, only 1 positive case (n = 144) of L. innocua was determined, presumably owing to the low airborne Listeria counts and its unpredictable settling rates. In addition, insignificant influences of air moisture and airflow on the airborne Listeria were found.
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