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Prevalence of Salmonella Spp. in Raw and Cooked Foods in Isfahan-Iran Publisher



Jalali M1 ; Abedi D3 ; Pourbakhsh SA2 ; Ghoukasin K1
Authors
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Authors Affiliations
  1. 1. School of Health, Isfahan University of Medical Sciences, 81745, Isfahan, Iran
  2. 2. Faculty of Pharmacy, Pharmaceutical Research Center, Isfahan University of Medical Sciences, 81745, Isfahan, Iran
  3. 3. Razi Vaccine and Serum Research Institute, Tehran, Karaj, Iran

Source: Journal of Food Safety Published:2008


Abstract

A total of 645 samples of raw and cooked foods were examined for the presence of Salmonella spp. Salmonella was detected in 43 (6.66%) of the samples. Salmonella was isolated from 24/134 (17.91%) of raw poultry, 3/56 (5.35%) of cooked poultry, 8/101 (7.92%) of raw meat, 2/118 (1.69%) of cooked meat, 1/3 (33.3%) of turkey, 2/5 (40.00%) of quail and 3/38 (7.89%) of vegetables. All samples taken from fish, yogurt, ready-to-eat olovieh salad, hamburger, mayonnaise souse and smallgoods were free of Salmonella. Of the 31 strains of Salmonella, 11 different serotypes were separated; among them S. enteritidis (29%) and S. baibouknown (29%) were the most frequent in raw foods. Furthermore, a high proportion of poultry was contaminated with Salmonella. Salmonella spp. were present in a small proportion of cooked foods, that is, they were not killed during the cooking process, or the contamination might have occurred after thermal treatment. These findings have a clear implication for public health, indicating the needs for improvement of hygienic condition in food processing centers. © 2008, The Author(s).
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