Investigation of Enterotoxin-Producing Genes (sea, seb, sec, and sed) in Staphylococcus aureus Isolated from Raw Traditionally and Pasteurized Milk Supplied in Tehran, Iran
Journal Title: Journal of Food Quality and Hazards Control - Year 2023, Vol 10, Issue 4
Abstract
Background: The issue of milk quality appears to be vital due to its nutritional value and since raw milk can be regarded as an appropriate environment for the growth of several pathogens by producing an enterotoxin. The aim of present study is to investigate enterotoxin-producing genes (sea, seb, sec, and sed) from Staphylococcus aureus isolated from raw traditional and pasteurized milk in Tehran, Iran. Methods: One hundred and fifty samples of raw traditional milk supplied in five districts of Tehran were collected and simultaneously15 pasteurized milk samples from various brands were prepared and examined phenotypically and bio-chemically for the existence of S. aureus. The presence of sea, seb, sec, sed genes was assessed by Polymerase Chain Reaction and ultimately the antibiotic residue was measured with a commercial kit. Results: In this study, 32 (21.3%) samples of raw traditional milk and one sample (6.7%) of pasteurized milk samples were infected with S. aureus. The frequency of presence of sea, seb, sec, and sed genes regarded to be: 9 (28.12%), 14 (43.75%), 6 (18.75%), 2 (6.25%), respectively however sec gene failed to identify. Basically 38 (33.25%) of raw traditional milk samples as well as 5 (33.33%) of pasteurized milk included antibiotic residue. Conclusion: The high prevalence of S. aureus comprising enterotoxin genes in raw traditional milk is considered as a severe warning to the community and highlights the need for a high quality product. DOI: 10.18502/jfqhc.10.4.14180
Authors and Affiliations
Z. Rajabi,A. Monadi Sefidan,M. Zarebavani,S. Sharifi Yazdi,S. Sharifi Yazdi,P. Torabi Bonab,S. Z. Mirbagheri,M. M. Soltan- Dallal,
Keywords
Related Articles
- EP ID EP726605
- DOI -
- Views 45
- Downloads 0
Benefits and Risks of Aquaculture Foods in Primary Health Care: A Mini-Review
Primary Health Care (PHC) is expected to serve as a basis for the country's health sector, of which it is the primary responsibility and priority, as well as the community's overall collective and economic prosperity. Pr...
Comparative Effects of Hibiscus Leaves and Potato Peel Extracts on Characteristics of Fermented Orange Juice
Background: Fermented foods are gaining interest because of their ability to improve health, as well as their good taste, and the desire of many to eat them. This investigation aimed to enhance the chemical and physical...
Prevalence, Antimicrobial Resistance, and Molecular Characterization of Escherichia coli Isolated from Food Contact Surfaces in Seafood Pre-Processing Plants (India)
Background: The survival of pathogens in biofilms poses a threat to food safety. The aim of this study was to determine prevalence, antimicrobial resistance, and molecular characterization of Escherichia coli strains. Me...
Announcement of “The Eighth National and Sixth International Conference of Environmental Sciences, Agriculture and Natural Resources” Held in Iran
This article has no abstract. DOI: 10.18502/jfqhc.9.4.11372
Proximate Compositions and Risk Assessment of Lead in Two Common Fishes (Labeo rohita and Barbonymus gonionotus) Collected from River and Farms of Bagerhat, Bangladesh
Background: Among the local fish species in Bangladesh, Labeo rohita and Barbonymus gonionotus are two popular fish species. The present work focused on proximate compositions (moisture, protein, fat, and ash) and risk a...