Prevalence study of Salmonella spp. in milk and milk products
Autor: | Sachin Jain, Bhavana Gupta, Kewal Singh Tomar, YP Sahni, S. S. Tripathi, Rohitashav Singh, Pooja Singh |
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Rok vydání: | 2018 |
Předmět: | |
Zdroj: | Asian Journal of Dairy and Food Research. |
ISSN: | 0976-0563 0971-4456 |
Popis: | The present study was carried out to observe the presence of Salmonella in milk and milk products. The investigation of 210 samples revealed presence of 7.61% Salmonella spp. with higher prevalence in raw milk and dahi - 11.9% each , followed by ice-cream -9.52% and khoa - 4.76%. None of the sample of flavored milk showed Salmonella. In molecular study, 5 (31.2%) isolates were found positive for invA gene. The gene was present in raw milk - 18.75% and 6.25% in khoa and ice-cream each. Salmonella isolates were found sensitive to netillin - 100%, ofloxacin - 87.5%, norfloxacin, ciprofloxacin and nalidixic acid – (62.5% each), streptomycin and amikacin – (56.2% each). The isolates were resistant to nitrofurantoin- 81.2%, tetracycline -75.0%, co-trimoxazole - 68.7%, ampicilline - 56.2% and cefotaxime - 50.0%. The observation displayed unhygienic atmosphere prevailing during production of dairy products which lead to contamination of Salmonella and thus may cause public health problem to the consumers. |
Databáze: | OpenAIRE |
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