Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2025Scopus SJRQ3/r/kostu/10663
  Investigation of quaternary ammonium compound resistance in Staphylococcus aureus strains isolated from several foods and food production facilities

  Bayrakal, G.M.; Aydin, A.; Issa, G.; Dumen, E.; Sudagidan, M.

  Quaternary ammonium compounds (QACs) are the most significant disinfectants utilised to control the contamination of Staphylococcus aureus in food establishments. S. aureus is a significant pathogen that carries genes responsible for resistance to QACs, which pose a risk to public health and food safety. The objective of the study was to investigate the prevalence of QAC genes (qacA/B, qacC, qacG, qacH, qacJ, and smr) and benzalkonium minimal inhibitory concentration (MIC) values in S. aureus strains isolated from food products and food production facilities (n = 200). The analysis results indicated that the qacC gene was the most frequently detected, with a prevalence of 12%. The qacA/B, qacG, qacH, qacJ, and smr genes were identified at frequencies of 2%, 3%, 1%, 4.5%, and 5%, respectively. The highest MIC level was identified in the surface sample, which carried the qacG gene, at a concentration of 6.25 μg mL-1. The study's results highlight the potential risks associated with disinfectant resistance in food establishments. To prevent the transfer of disinfectant resistance genes, which have become a global risk, it is imperative that the rules of disinfectant usage are observed rigorously and that scientific research in this field is diversified.

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  AtıfScopus6·WoS6·OpenAlex6

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• MakaleAçık Erişim2025Scopus SJRQ3/r/kostu/10269
  Detection of airborne bacteria and fungi in meat plants

  Altunatmaz, Sandikci; Aydin, A.; Issa, G.; Aksu, F.; Dulger Altiner, D.; Aksu, H.

  The present work aimed to determine the total airborne bacterial and fungal loads in three meat plants, identify the isolated fungi, and determine the fungal diversity. The air samples were collected from 23 different sampling points within the meat plants using two different techniques: the Petri dish exposure (sedimentation) method and the impaction method (using Mas-100 Eco Air Sampler device). Using the sedimentation method, the total mesophilic aerobic bacterial and fungal counts were found to be 1 - 180 CFU/Petri-15 min (mean 48.49 CFU/Petri-15 min) and 1 - 105 CFU/Petri (mean 19.845 CFU/Petri), respectively. Using the impaction method, the counts ranged from 8 to 385 CFU/m³ (mean 112.77 CFU/m³) for bacteria, and from 2 to 320 CFU/m³ (mean 57.45 CFU/m³) for fungi. A total of 76 isolates were obtained. The most commonly isolated fungal species were Mucor spp. (n = 28, 36.84%), Rhizopus spp. (n = 22, 28.94%), and Penicillium spp. (n = 18, 23.68%). Mucor racemosus (n = 20) and Rhizopus oryzae (n = 14) were the most common species. Additionally, Aspergillus spp. (n = 3, 3.94%), Geotrichum spp. (n = 3, 3.94%), Syncephalostrum sp. (n = 1, 1.31%), and Wallemia sp. (n = 1, 1.31%) were detected. The present work demonstrated that fungi, which could be pathogens and spoilers, may be present in the ambient air of meat plants. Therefore, maintaining air hygiene in meat plants, from economic and health perspectives, is essential.

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  AtıfScopus1·WoS1

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