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Variation in sensitivity of selected bacterial pathogens for gamma radiation [electronic resource].

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Ali, Aisha R

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Language: English Summary language: Arabic Description: p.1977-1989Other title:

التنوع فى حساسية البكتريا الممرضة المختارة لأشعة جاما [Added title page title]

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Egyptian journal of agricultural research, 2008 v. 86 (5) [electronic resource].

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In: Egyptian journal of agricultural research 2008.v.86 (5)Summary: Bacteriological examination of 100 samples of animal feed stuff and 50 samples of pet feeds revealed the isolation of different bacterial pathogens mainly: Escherichia coli, Klebsiella spp., Pseudomonas aeruginosa, Proteus spp., Staphylococcus aureus and Salmonella spp. in a decreasing order of occurrence. The efficacy of Gamma irradiation against the inoculated bacterial isolates (E coli 0157: H7, S. enteritidis and S. aureus) in feed stuff and pet feeds was investigated. Irradiated samples were stored at room temperature (25°C) for 2 weeks. The feed borne pathogens used in this study showed difference in radiation sensitivity. E coli 0157: H7, S. enteritidis and S. aureus were sensitive to ionizing radiation at 1 KGy, 3 KGy and 1/2 KGy, respectively. Also, inoculated pathogens in semi moist pet feeds were more sensitive to ionizing radiation than dry pet feeds.

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Bacteriological examination of 100 samples of animal feed stuff and 50 samples of pet feeds revealed the isolation of different bacterial pathogens mainly: Escherichia coli, Klebsiella spp., Pseudomonas aeruginosa, Proteus spp., Staphylococcus aureus and Salmonella spp. in a decreasing order of occurrence. The efficacy of Gamma irradiation against the inoculated bacterial isolates (E coli 0157: H7, S. enteritidis and S. aureus) in feed stuff and pet feeds was investigated. Irradiated samples were stored at room temperature (25°C) for 2 weeks. The feed borne pathogens used in this study showed difference in radiation sensitivity. E coli 0157: H7, S. enteritidis and S. aureus were sensitive to ionizing radiation at 1 KGy, 3 KGy and 1/2 KGy, respectively. Also, inoculated pathogens in semi moist pet feeds were more sensitive to ionizing radiation than dry pet feeds.

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