방사선산업학회지 (Journal of Radiation Industry)

한국방사선산업학회 (Korean Society of Radiation Industry)
권호 표지

시판 유제품 중에서 분리된 젖산균의 감마선 조사에 의한 생존 효과

The Effect of Gamma Irradiation on the Survival of Lactic Acid Isolated from Commercial Daily Product

  • 이지혜 (한국원자력연구원 정읍방사선과학연구소) ;
  • 김재경 (한국원자력연구원 정읍방사선과학연구소) ;
  • 조으리 (한국원자력연구원 정읍방사선과학연구소) ;
  • 성낙윤 (한국원자력연구원 정읍방사선과학연구소) ;
  • 최종일 (한국원자력연구원 정읍방사선과학연구소) ;
  • 김재훈 (한국원자력연구원 정읍방사선과학연구소) ;
  • 송범석 (한국원자력연구원 정읍방사선과학연구소) ;
  • 박종흠 (한국원자력연구원 정읍방사선과학연구소) ;
  • 육홍선 (충남대학교 식품영양학과) ;
  • 이주운 (한국원자력연구원 정읍방사선과학연구소)
  • Lee, Ji-hye (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Jae-Kyung (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Jo, Eu-Ri (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Sung, Nak-Yun (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jong-Il (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Jae-Hun (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Song, Beom-Seok (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Park, Jong-Heum (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Yook, Hong-Sun (Department of Food Science & Human Nutrition, Chungnam National University) ;
  • Lee, Ju-Woon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 투고 : 2011.05.16
  • 심사 : 2011.05.27
  • 발행 : 2011.06.30

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초록

This study was conducted with effect of lactic acid bacteria by gamma irradiation. Lactic acid bacteria were exposed to irradiation with a single absorbed dose of 1, 2, 3, 4, 5, 6, 8, and 10 kGy. Possible lactic acid bacteria, including Lactobacillus paracasei KCTC 13169, Lactobacillus casei KCTC 3109, Lactobacillus acidophilus KCTC 3140, Lactobacillus plantarum subsp plantarum KCTC 3103, Lactobacillus debruekii subsp bulgaricus KCTC 3635, Streptococcus thermophilus KCTC 3658 were selected. The radiation sesitivities of lactic acid bacteria were expressed as $D_{10}$ values. The $D_{10}$ values of Lactobacillus paracasei, Lactobacillus casei, Streptococcus thermophilus, Lactobacillus acidophilus, Lactobacillus plantarum, and Lactobacillus debruekii were calculated as 0.42, 0.51, 0.47, 0.90, 0.44, and 0.61 kGy, respectively. Results suggest that L. acidiphilus has the highly resistant to gamma irradiation.

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