POWIETRZE NA LINIACH PRODUKCYJNYCH ZAKŁADU MIĘSNEGO JAKO ŹRÓDŁO ZANIECZYSZCZENIA MIKROBIOLOGICZNEGO
AIR ON PRODUCTION LINES OF A MEAT PROCESSING PLANT AS A SOURCE OF MICROBIAL CONTAMINATION

Summary/Abstract: This paper presents the results of the microbiological air purity assessment. Concentrations of bacterial and fungal aerosols were determined. Particular attention was paid to the presence of potentially pathogenic bacterium Listeria spp. and E. coli. The study was conducted for 7 sampling points located at the consecutive stages of the production line and hallway of the meat processing plant. Air samples were collected with the compaction method using the MAS – 100 Eco type impactor. The results show higher concentrations of bacteria and mould fungi in the low risk area air than in the high risk area air. E. coli occurred sporadically, other coliform bacteria were isolated from the samples collected from 6 sampling points. Moreover, the presence of Listeria spp. was discovered, and confirmed with the use of PCR technique as L. monocytogenes. Thus, it was proven that air can be a source of microbial contamination with the saprophytes and pathogens at each and every production stage.

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