Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Identification of Radiation-Resistant Bacterium Isolated from Dried Laver (Porphyra tenera)

김으로부터 분리한 방사선 저항성 세균

  • Ahn, Hyun-Joo (Team for Radiation Food Science & Biotechnology, Korea Atomic Energy Research Institute) ;
  • Yook, Hong-Sun (Team for Radiation Food Science & Biotechnology, Korea Atomic Energy Research Institute) ;
  • Kim, Dong-Ho (Team for Radiation Food Science & Biotechnology, Korea Atomic Energy Research Institute) ;
  • Kim, Sung (Dept. of Food Science and Technology, Yeungnam University) ;
  • Byun, Myung-Woo (Team for Radiation Food Science & Biotechnology, Korea Atomic Energy Research Institute)
  • 안현주 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 육홍선 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 김동호 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 김성 (영남대학교 식품가공학과) ;
  • 변명우 (한국원자력연구소 방사선식품.생명공학연구팀)
  • Published : 2001.02.01
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Abstract

A radiation-resistant bacterium was isolated from gamma irradiated dried laver (Porphyra tenera) and its microbiological characteristics were examined. As a result of resistance test to gamma irradiation, the isolate was survived $10^{3}$ CFU/mL even at 30 kGy and significant shoulder line zone was shown until 20 kGy. The $D_{10}$ value was 11.27 kGy. The isolate was gram-positive, non-motile coccus and catalase-positive. n culture, the red-pigmented smooth colony was observed. The biochemical test in API (analytical profile index) system showed that the isolate fermented glucose and fructose as the carbon source. Therefore, a radiation-resistant bacterium isolated from laver was potentially identified as Micrococcus roseus sp.

Keywords

References

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