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Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884
10.21608/mjb.2021.460099
Abstract
A total of 400 food samples including 200 meat (luncheon, frozen lean beef, raw lean beef and frozen chicken meat) and 200 dairy products (white cheese, kareesh cheese, turkey cheese and pasteurized milk) were examined for Salmonella prevalence. Salmonella could be detected in 14 (28%), 4 (8%), 11 (22%) and 7 (14%) of luncheon, frozen lean beef, raw lean beef and frozen chicken meat samples, respectively. On the other hand, the percentage of positive samples in the case of dairy samples represented 6 (12%), 19 (38%) and 13 (26%) of white cheese, kareesh cheese and turkey cheese respectively, while it could not be detected in any of pasteurized milk samples. Serotyping of the isolated Salmonella (71 isolates) from meat and dairy samples using slide agglutination test revealed that, the highest predominant serovar was 35 S. Typhimurium (49.3%), followed by 18 S. Newport (25.4%), 16 S. Enteritidis (22.5%) and two S. Kentucky (2.8%; 2 from meat samples only). The results of antibiotics susceptibility profiles highlighted the presence of multi-drug resistance by several serovars of Salmonella, especially S. Typhimurium. Regarding the formation of the biofilm, the obtained results showed that the serovars were differed in their ability to form it where S. Typhimurium was the strongest producing serovars with 10 isolates (10/35; 28.57%), followed by S. Enteritidis were 3 isolates (3/16; 18.75%). The presence of Salmonella in Egyptian foods it raises the alarm that control over food quality and safety must be tightened.
Abdelhadi, I. M., Sofy, A. R., Hmed, A. A., Soweha, H. E., & Abbas, M. A. (2021). Prevalence of Antibiotic Resistance and Biofilm Producing Salmonella spp. in Some Egyptian Foods. Mansoura Journal of Biology, 51(2), 45-55. doi: 10.21608/mjb.2021.460099
MLA
Iman M.A. Abdelhadi; Ahmed R. Sofy; Ahmed A. Hmed; Hany E. Soweha; Mohamed A. Abbas. "Prevalence of Antibiotic Resistance and Biofilm Producing Salmonella spp. in Some Egyptian Foods", Mansoura Journal of Biology, 51, 2, 2021, 45-55. doi: 10.21608/mjb.2021.460099
HARVARD
Abdelhadi, I. M., Sofy, A. R., Hmed, A. A., Soweha, H. E., Abbas, M. A. (2021). 'Prevalence of Antibiotic Resistance and Biofilm Producing Salmonella spp. in Some Egyptian Foods', Mansoura Journal of Biology, 51(2), pp. 45-55. doi: 10.21608/mjb.2021.460099
VANCOUVER
Abdelhadi, I. M., Sofy, A. R., Hmed, A. A., Soweha, H. E., Abbas, M. A. Prevalence of Antibiotic Resistance and Biofilm Producing Salmonella spp. in Some Egyptian Foods. Mansoura Journal of Biology, 2021; 51(2): 45-55. doi: 10.21608/mjb.2021.460099
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