Academic journal article Iranian Journal of Public Health

PREVALENCE AND DIVERSITY OF ENTEROCOCCI IN RAW AND PASTEURIZED MILKS IN EAST-AZERBAIJAN, Iran

Academic journal article Iranian Journal of Public Health

PREVALENCE AND DIVERSITY OF ENTEROCOCCI IN RAW AND PASTEURIZED MILKS IN EAST-AZERBAIJAN, Iran

Article excerpt

Background: Enterococci have traditionally regarded as low grade pathogens emerged as an increasingly important cause of nosocomial infections. Due to their preferred intestinal habitat and their wide occurrence, Enterococci are used as indi- cators for fecal pollution assessing hygiene standards. The present study aimed to identify enterococcal isolates and spe- cies level from pasteurized and raw milks collected from re- tails and different bulk milk reception centers of East- Azerbaijan province, respectively.

Methods: Enterococci spp. were isolated and identified from different raw and pasteurized milks using standard morpho- logical and biochemical tests such as Gram staining, catalase, growth in the presence of 6.5% salt, esculine hydrolysis, H2S production, motility, pigment production, acid production from L-arabinose, mannitol, lactose, D-raffinose, sucrose, argenine dihydrolysis, growth in the presence of 0.04% po- tassium tellurite and ability to growth in 4 °C.

Results: Occurrence of Enterococci was confirmed in 100% of raw and 37% of pasteurized milks. …

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