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The Prediction of the Origin of Microbial Contamination in Kimbab and Improvement of Microbiological Safety by Gamma Irradiation  

Lee, Na-Young (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Jo, Cheol-Hun (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Chung, Hun-Jong (Pediatrics, Konkuk University Hospital)
Kang, Ho-Jin (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Kim, Jae-Kyung (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Kim, Hyun-Ju (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Byun, Myung-Woo (Radiation Food Science and Biotechnology Team, Korea Atomic Energy Research Institute)
Publication Information
Korean Journal of Food Science and Technology / v.37, no.2, 2005 , pp. 279-286 More about this Journal
Abstract
Microbial contamination origin of Kimbab was determined using nine types of ready-to-use ingredients, three each from animal, seafood, and vegetable sources. Effect of radiation on microbiological safety was also investigated. Total aerobic bacteria were not detected in seasoned beef, ham, and seasoned burdock, whereas 3.50, 5.41, 8.83, and 5.07 log CFU/g were detected in surimi gel, seasoned and blanched spinach, dried laver, and cucumber, respectively. Total aerobic bacterial and mold numbers were 8.73 and 5.08 log CFU/g in prepared Kimbab. Gamma irradiation reduced level of contaminated aerobic bacteria and mold population in Kimbab and its ingredients, Salmonella mutagenicity assay (Ames test) showed Kimbub ingredients irradiated at 10 kGy did not show any mutagenicity. These results indicate ready-to-use kimbab ingredients were mostly responsible for total aerobic bacteria and mold population of Kimbab, and low dose irradiation and low temperature storage ($10^{\circ}C$) effectively ensured microbiological safety of Kimbab and ready-to-use ingredients.
Keywords
Kimbab; ready-to-eat; microbiological safety; irradiation; mutagenicity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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