Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Optimum Sterilization Conditions and Quality Characteristics of the Retort-Sterilized Crab Analog

레토르트 Crab Analog의 살균 최적화 및 품질 특성

  • Yun, Jae-Ung (Department of Seafood Science and Technology / Institute of Marine Industry, Gyeongsang National University) ;
  • Oh, Dong-Hun (Department of Seafood Science and Technology / Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Byeong-Gyun (Department of Seafood Science and Technology / Institute of Marine Industry, Gyeongsang National University) ;
  • An, Byung-Soo (Department of Seafood Science and Technology / Institute of Marine Industry, Gyeongsang National University) ;
  • Choi, Jong-Duck (Department of Seafood Science and Technology / Institute of Marine Industry, Gyeongsang National University) ;
  • Oh, Kwang-Soo (Department of Seafood Science and Technology / Institute of Agriculture and Life Sciences, Gyeongsang National University)
  • 윤재웅 (경상대학교 해양식품공학과 / 해양산업연구소) ;
  • 오동훈 (경상대학교 해양식품공학과 / 해양산업연구소) ;
  • 김병균 (경상대학교 해양식품공학과 / 해양산업연구소) ;
  • 안병수 (경상대학교 해양식품공학과 / 해양산업연구소) ;
  • 최종덕 (경상대학교 해양식품공학과 / 해양산업연구소) ;
  • 오광수 (경상대학교 해양식품공학과 / 농업생명과학연구원)
  • Received : 2010.11.02
  • Accepted : 2011.02.10
  • Published : 2011.02.28
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Abstract

This study developed a normal temperature-circulatable retort-sterilized crab analog (RSCA) with a long shelf-life by retort sterilization. We examined the optimum sterilization conditions and quality characteristics of the RSCA. A central composite design for response surface methodology (RSM) was adopted to optimize of the retort sterilization. The central composite design consisted of 11 samples: four factorial points, four star points, and three central points. The sterilization temperature and $F_0$-value for retort sterilization were the independent variables, and the shearing force, whiteness, and sensory score for texture were the dependent variable. The RSM analysis of the multiple response optimization for the RSCA using the Minitap statistical programing gave an $F_0$-value of 3.3 min. at $117.5^{\circ}C$. The RSM analysis also indicated that the sterilization temperature during retort sterilization was the most influential factor, while the $F_0$-value had little effect on the quality of the RSCA. The moisture, pH and volatile basic nitrogen contents of the RSCA product were 73.1%, 7.3 and 17.2 mg/100 g, respectively, and viable cells count was >18 CFU/g. And sensory quality characteristics of this RSCA was similar to those of a commercial crab analog.

Keywords

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