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Species Diversity and Molecular Analysis of Staphylococcus in Confectioneries of a Developing Country, Iran Pubmed



Hoveida L1 ; Ataei B2 ; Amirmozafari N3 ; Noormohammadi Z1
Authors
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Authors Affiliations
  1. 1. Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
  2. 2. Infectious Diseases and Tropical Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran

Source: Infezioni in Medicina Published:2018


Abstract

Confectionery is one of the potential sources of contamination and transmission of gastrointestinal infections to humans. Staphylococcus species, and particularly the coagulase-positive ones, have the remarkable capability to produce high amounts of enterotoxin in food. In the present study, the frequency and diversity of Staphylococcus in confectioneries in Iran were assessed by using a combination of conventional and molecular methods. A total of 55 confection samples were collected from 30 confectioneries of Isfahan. They were analyzed for the presence of Staphylococcus using standard protocols for isolation and characterization of the isolates. The conventional tests were used for primary identification and the sequence analysis of 16S rRNA was used for the species identification. A total of 47 out of 55 samples were gram-positive cocci (85.45%). They belonged to 39 Staphylococcus spp., 7 Macrococcus spp., and one Micrococcus spp. The most prevalent 11 various Staphylococcus species were S. aureus 30.8%, S. warneri 20.5% and S. succinus 17.9. Identification and characterization of Staphylococcus species can be important for epidemiological investigations and assessment of virulence factors such as enterotoxin production and development of specific management practices to prevent staphylococcal food poisoning. © 2018, EDIMES Edizioni Medico Scientifiche. All rights reserved.
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