1. Biocontrol of Salmonella Typhimurium in Raw Salmon Fillets and Scallop Adductors by Using Bacteriophage SLMP1
- Author
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Yuan Zhang, Fengling Li, Yanhua Jiang, Lin Yao, Yuxiu Zhai, Lianzhu Wang, and Dongqin Xu
- Subjects
Salmonella typhimurium ,0301 basic medicine ,Salmonella ,030106 microbiology ,Biological pest control ,medicine.disease_cause ,Microbiology ,Bacteriophage ,03 medical and health sciences ,Salmon ,medicine ,Animals ,Bacteriophages ,Food science ,Incubation ,Detection limit ,biology ,Chemistry ,Inoculation ,biology.organism_classification ,Pectinidae ,030104 developmental biology ,Biological Control Agents ,Scallop ,Food Microbiology ,Food Science - Abstract
The aim of this study was to evaluate the effectiveness of bacteriophage (phage) SLMP1 to reduce Salmonella Typhimurium on contaminated raw salmon fillets and scallop adductors as a function of Salmonella inoculum level, phage dose, storage temperature, and storage time. Samples were inoculated with 102 and 104 CFU/g Salmonella and then treated with different concentrations of phage SLMP1, followed by incubation at 4, 15, and 25°C, respectively. The results showed that 108 PFU/g was the optimal concentration of phage for the control of Salmonella, which was applied in the following storage experiments over a 7-day period at 4°C, a 4-day period at 15°C, and a 2-day period at 25°C. For the salmon fillets samples, 102 CFU/g Salmonella could be reduced below the detection limit at all three temperatures, whereas 104 CFU/g Salmonella was first decreased and then increased at 15 and 25°C. For the scallop adductors samples, 102 CFU/g Salmonella could be reduced below the detection limit first and then i...
- Published
- 2018