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Efficiency of fractionated γ-irradiation doses to eliminate vegetative cells and spores of Bacillus cereus from raw rice

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dc.creator Mtenga, Adelard
dc.creator Kassim, Neema
dc.creator Shim, Won-Bo
dc.creator Chung, Duck-Hwa
dc.date 2020-05-04T07:11:54Z
dc.date 2020-05-04T07:11:54Z
dc.date 2013-04-30
dc.date.accessioned 2022-10-25T09:20:30Z
dc.date.available 2022-10-25T09:20:30Z
dc.identifier https://doi.org/10.1007/s10068-013-0117-6
dc.identifier https://dspace.nm-aist.ac.tz/handle/20.500.12479/740
dc.identifier.uri http://hdl.handle.net/123456789/95004
dc.description This research article published by Springer Nature Switzerland AG., 2013
dc.description Efficacy of fractionated γ-irradiation to eliminate vegetative and spore forms of Bacillus cereus from raw rice was studied. Viable bacteria and spores count performed after irradiation treatment revealed that vegetative cells and spores (7.9 and 7.7 log CFU/g) of B. cereus in raw rice tolerated γ-irradiation up to 10 and 20 kGy, respectively and were eliminated at 15 and 25 kGy respectively on single treatment. Exactly 2 times of 5 kGy irradiation treatment eliminated all vegetative B. cereus (7.9 log CFU/g). A treatment with fractionated doses of γ-irradiation effectively eliminated vegetative bacteria but not spores of B. cereus. Field emission SEM images revealed the damage by γ-irradiation to the spore exosporium. This study suggests new approach of using fractionated doses of γ-irradiation to eliminate foodborne pathogens in food which are affected by high doses of γ-irradiation.
dc.format application/pdf
dc.language en
dc.subject γ-irradiation
dc.subject Bacillus cereus
dc.subject Vegetative cell
dc.title Efficiency of fractionated γ-irradiation doses to eliminate vegetative cells and spores of Bacillus cereus from raw rice
dc.type Article


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