Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Study on Heat Resistant Putrefactive Spore Formers in Korean Soil and Processed Foods Part 2. Study on Thermal Resistance of Selected Spore Formers in Thermal Process of Mushroom Cans

가공(加工) 식품(食品)의 내열성(耐熱性) 부패균(腐敗菌) 분포(分布) 조사(調査) 연구(硏究) 제(第)2보(報) : 내열성(耐熱性) 부패균(腐敗菌) 최적(最適) 살균(殺菌) 조건(條件) 시험(試驗)

  • Koo, Young-Jo (Food Research Institute, Agriculture and Fishery Development Corporation) ;
  • Min, Byong-Yong (Food Research Institute, Agriculture and Fishery Development Corporation) ;
  • Yu, Tae-Jong (Department of Food Technology, Korea University)
  • 구영조 (농어촌개발공사 식품연구소) ;
  • 민병용 (농어촌개발공사 식품연구소) ;
  • 유태종 (고려대학교 식품공학과)
  • Published : 1979.09.15
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Abstract

Spoiled mushroom cans were collected from several canneries and examined the spore bearing bacteria in them. Thirty four isolates of anaerobic mesophiles were isolated. The one isolate(Cl-5) which was the most heat stable among the above isolates, the other isolate (D-29) which was examined in the previous experiment (Korea J. Food Sci. Technol., 10(2), 224 (1978) and PA 3679 were compared their heat resistancy in neutral phosphate buffer. They were confirmed the spoilage of mushroom products. Z value and $D_{250}$ value of the Cl-5(isolated from mushroom casing soil at Gimjae) possessing the highest resistancy were $21.3^{\circ}F$ and 1.8 min in mushroom can (4 oz. piece and stem). It's F value was 8.95 when Z value was 21.3.

양송용(洋松茸) 부패부(腐敗缶)을 수집(蒐集)하고 아포(芽胞) 형성균(形成菌) 분포(分包) 조사(調査)와 anaerobic mesophiles 34균주(菌株)를 분리(分離)하였다. 이중 내열성(耐熱性)이 가장 강(强)한 균주(菌株) (Cl-5) 및 제(第)1보(報)(한국식품과학회지 10(2), 224 (1978)에서 실험(實驗)한 균주(菌株) (D-29)와 PA 3679를 중성(中性) 인산(燐酸) 완충(緩衝) 액용(液溶)에서 내열성(耐熱性)을 비교(比較)한 결과(結果) Cl-5가 가장 컸으며 이들의 부패성(腐敗性)도 확인(確認)하였다. 내열성(耐熱性)이 가장 큰 Cl-5(김제(金堤) 지방(地方) 양송용(洋松茸) 재배상(栽培床) 복토(覆土)에서 분리(分離), 혐기성(嫌氣性) 중온성(中溫性) 균(菌))의 통조림 부(缶)(4 oz. piece and stem)에서의 열(熱) 저항성(抵抗性)은 $Z=21.3^{\circ}F$, D_{250}=1.8min$ 이었으며 최적(最適) 살균(殺菌) 조건(條件)은 Z=21.3일때 적정(適定) F value 8.95이었다.

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