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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Comparison of Muscle Texture between Red Seabreams Cultured by Feeding and Starving

급이 및 비급이 참돔의 조직감 비교

  • Shin, Gil-Man (Division of Food Science, Sunchon National University) ;
  • Ahn, You-Seong (Division of Food Science, Sunchon National University) ;
  • Shin, Dong-Myung (Mijori Fishery) ;
  • Lee, Jae-Hyung (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Hyung-Jun (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Yoon, Min-Seok (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Heu, Min-Soo (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Jin-Soo (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University)
  • 신길만 (순천대학교 식품과학부) ;
  • 안유성 (순천대학교 식품과학부) ;
  • 신동명 (미조리 수산) ;
  • 이재형 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 김형준 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 윤민석 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 허민수 (경상대학교 해양생명과학부/해양산업연구소) ;
  • 김진수 (경상대학교 해양생명과학부/해양산업연구소)
  • Published : 2008.09.30
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Abstract

For the effective use of red seabream, the texture between red seabream muscles cultured by feeding and starving were compared. Moisture and crude lipid contents of red seabream muscle cultured by starving (RCS) were 72.7% and 3.7%, respectively, which was 3% higher in the moisture compared to that of red seabream muscle cultured by feeding (RCF), while 3% lower in the crude lipid. The hardness of RCS was $0.93\;kg/cm^2$, which was higher than that ($0.47\;kg/cm^2$) of RCF. No differences in total collagen content, acetic acid-solublized collagen content, its thermal denaturation temperature and SDS-PAGE patterns between RCS and RCF were found. The results suggested that the difference in muscle texture between RCS and RCF was probably due to the difference of lipid content.

참돔을 보다 효율적으로 이용할 목적으로 참돔의 급이 및 비급이에 따른 조직감과 같은 기호적 특성에 대하여 비교하여 살펴보았다. 비급이 참돔의 수분함량 및 조지방 함량은 각각 72.7% 및 3.7%로, 급이 참돔의 각각 70.0% 및 6.6%에 비하여, 수분함량의 경우 약 3%가 높았고, 조지방 함량의 경우 약 3%가 낮아 5% 유의수준에서 차이가 있었다. 근육의 경도는 비급이 참돔이 $0.93\;kg/cm^2$으로, 급이 참돔의 $0.47\;kg/cm^2$에 비하여 조직감이 다소 강하리라 추정되었다. 콜라 겐 함량, 콜라겐의 아세트산에 대한 용해도, 산가용성 콜라겐의 열변성 온도 및 전기영동적 분자구성 등의 결과로 미루어 보아 급이 및 비급이 참돔 근육 유래 콜라겐 간에는 차이가 없었다. 이와 같은 지질함량, 콜라겐의 특성, 경도 및 관능적 조직감의 결과로 미루어 보아 비급이 참돔 및 급이 참돔간에 근육의 조직감 차이는 지질 함량에 의한 영향이라 판단 되었다.

Keywords

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