Survey of Yersinia enterocolitica contamination in distributed red meats in Tabriz.
Subject Areas : Journal of Large Animal Clinical Science Research(JLACSR)
Keywords: Contamination, Tabriz, Yersinia enterocolitica, red meat,
Abstract :
Yersinia enterocolitica is one of the intestine’s pathogens which transmit to human through the water, foods and specially contaminated meats. The infected meat has no apparent symptoms of putrefaction and eating of such meat in raw and/or undercooked forms can lead to acute gastroenteritis, dysentery, mesenteric lymphadenitis and even septicemia. The aim of this research was the survey of Yersinia enterocolitica frequency in any types of red meat’s in Tabriz city. For this purpose 120 samples of red meats were purchased by the method of random sampling. The samples were divided in groups’ responding to the parameters of packaging, variety of preserving and storing time. All of the samples carried to laboratory aseptically in cold boxes and required microbiological testes including cold enrichment, cultivation in selective medium, isolation of bacterium and typing of genus and species done by specific biochemical and enzymatic characters. 13.3% of all of the studied meats were contaminated with Yersinia enterocolitica. Analysis of results with fisher exact and chi – square testes showed that there was no meaning diversity among the all of studied samples groups. A considerably quantities of red meats are contaminated with this bacterium “without any symptoms of pollution” and if meat foods don’t heated enough for killing all of the bacterium in cooking period, subsequent preserving of such foods in refrigerators condition provide opportunity for there proliferation and as regarding of absence of any symptoms, eating of such foods can results to gastroenteritis and other abdominal disorders in consumers.
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