Studies on Salmonella Isolates from Fishery Products
2025
J.R., Bandekar | R., Shashidhar | S., Jajoo | M., Karani | S.B., Warrier
Salmonella isolates obtained from fishery products were studied with respect to their sensitivity to antibiotics, ionizing radiation and chlorine water treatment. The optimum pH range for the growth of the isolates was determined. The isolates were also characterized for pathogenicity related genes based on PCR assay. None of the 34 isolates under study were resistant to 16 antibiotics tested. All isolates were sensitive to chlorine water treatment (25 ppm) when treated in saline, but they were resistant when treatment was in organic medium. Optimum growth of all isolates was observed in the pH range of 5 to 7; however, S. typhimurium and S. worthington could grow even at pH 4. The PCR based identification of pathogenicity related genes invA and spvC showed that both genes were present in S. gallinamm and S. enteritidis and only invA was present in S. typhimurium and S. worthington. D 10 value for these serovars irradiated in brain heart infusion broth was in the range of 270 to 289 Gy.
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Эту запись предоставил Indian Council of Agricultural Research