Bianca de Souza Costa, Katarine Coutinho Silva, Carolaine Totelote Medeiros Pimenta Rodrigues, Ana Carolina Carvalho De Oliveira, Silvia Maria Dos Reis Lopes, Ivano de Filippis
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引用次数: 0
Abstract
We investigated bacterial pathogens on restaurant cutting boards using phenotypic and molecular methods, and determined their antibiotic susceptibility. A total of 32 samples were collected from polyethylene cutting boards in the kitchens of 16 restaurants in Rio de Janeiro, Brazil. A total of 29 bacterial strains were isolated and identified, including Salmonella spp. (n = 11), Escherichia coli (n = 10), Staphylococcus aureus (n = 6), and Listeria spp. (n = 2). Of the 32 cutting boards, 9 (28.1%) harbored at least one bacterial species, 7 (21.9%) had two species, and 2 (6.2%) carried three species. Notably, the detection of two pathogens directly from raw samples using quantitative polymerase chain reaction with high-resolution melting (qPCR-HRM) was significant: Listeria monocytogenes was identified in two samples by phenotypic methods but in 18 samples by qPCR-HRM, while E. coli was found in 10 samples by phenotypic methods and in 29 samples by qPCR-HRM. Antibiotic resistance was another concern, especially for L. monocytogenes strains, which exhibited high resistance to all tested antibiotics. Additionally, multidrug-resistant strains were identified, including a S. aureus strain with strong potential to be methicillin-resistant. Our findings underscore the importance of molecular methods for detecting specific pathogens on food-processing surfaces, highlighting the need for improved monitoring and control measures in restaurant kitchens.
期刊介绍:
Foodborne Pathogens and Disease is one of the most inclusive scientific publications on the many disciplines that contribute to food safety. Spanning an array of issues from "farm-to-fork," the Journal bridges the gap between science and policy to reduce the burden of foodborne illness worldwide.
Foodborne Pathogens and Disease coverage includes:
Agroterrorism
Safety of organically grown and genetically modified foods
Emerging pathogens
Emergence of drug resistance
Methods and technology for rapid and accurate detection
Strategies to destroy or control foodborne pathogens
Novel strategies for the prevention and control of plant and animal diseases that impact food safety
Biosecurity issues and the implications of new regulatory guidelines
Impact of changing lifestyles and consumer demands on food safety.