Document Detail

Effect of gamma irradiation on the survival of pathogens in kwamegi, a traditional Korean semidried seafood.
MedLine Citation:
PMID:  14627288     Owner:  NLM     Status:  MEDLINE    
Kwamegi (semidried raw Pacific saury) is traditional seafood available in Korea. It has water activity in the range of 0.90 to 0.95. Spoilage and the growth of most pathogenic bacteria is retarded because of low water activity, low temperature, and packaging. However, it is contaminated with bacteria of public health significance and poses a hazard to the consumer because it is consumed raw without any cooking. The effectiveness of these hurdles in preventing the growth of Staphylococcus aureus, Bacillus cereus, Salmonella Typhimurium, and Escherichia coli and the efficacy of irradiation treatment in eliminating these bacteria from kwamegi using inoculated pack studies was examined. Radiation sensitivity of S. aureus, B. cereus, Salmonella Typhimurium, and E. coli in kwamegi was investigated. D10-values of these organisms in kwamegi were 590 +/- 13.6, 640 +/- 14.9, 560 +/- 45.4, and 550 +/- 8.6 Gy, respectively. The growth of all four test organisms inoculated into these foods during 4 weeks of storage at an ambient winter temperature (ranging from -5 degrees C to +5 degrees C) was recorded. All four pathogens (inoculated at 10(6) CFU/g) were eliminated by irradiation at 4 kGy. These studies unequivocally demonstrate that irradiation, with a combination of low water activity and low temperature, results in microbiologically safe kwamegi.
S P Chawla; D H Kim; C Jo; J W Lee; H P Song; M W Byun
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of food protection     Volume:  66     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2003-11-20     Completed Date:  2004-01-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2093-6     Citation Subset:  IM    
Food Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
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MeSH Terms
Beloniformes / microbiology*
Consumer Product Safety*
Dose-Response Relationship, Radiation
Food Irradiation*
Food Microbiology
Food Packaging / methods
Gamma Rays
Seafood / microbiology*
Water / metabolism
Reg. No./Substance:

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