Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
권호 표지

Pork Quality Characteristics by Different Backfat Thickness

등지방 두께에 따른 돈육의 품질 특성

  • Hah Kyoung-Hee (National Livestock Research Institute) ;
  • Jin Sang-Keun (Dept. of Animal Resources Technology, Jinju National University) ;
  • Kim Il-Suk (Dept. of Animal Resources Technology, Jinju National University) ;
  • Song Young-Min (Dept. of Animal Resources Technology, Jinju National University) ;
  • Lee Jae-Ryong (Advanced Swine Research Institute, Gyeongnam Province) ;
  • Chung Ku-Young (Dept. of Animal Science and Technology, College of Life Science and Natural Resources, Sangji University)
  • 하경희 (농촌진흥청 축산연구소) ;
  • 진상근 (진주산업대학교 동물소재공학과) ;
  • 김일석 (진주산업대학교 동물소재공학과) ;
  • 송영민 (진주산업대학교 동물소재공학과) ;
  • 이제룡 (경상남도 첨단양돈연구소) ;
  • 정구용 (상지대학교 생명자원과학대학 동물자원학과)
  • Published : 2005.12.01
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Abstract

The objective of this study was carried out investigate the changes of carcass characteristics, physico-chemical characteristics and fatty acid composition in crossbred pigs (Korean native breed ${\times}$ Landrace breed) by backfat thickness. A total 182 Pigs were divided into 3 groups by there backfat thickness, i.e., <11.80mm, $11.80\~25.01mm\;and\;25.01mm<.$ The live weight carcass weight and dressing percent of backfat thickness 25.01mm< group were higher compared to those for backfat thickness <11,80mm and $11.80\~25.01mm group, but the final grade were lower. The pH of backfat thickness 25.01mm< group were higher compared to those for backfat thickness <11.80mm and $11.80\~25.01mm$ group. Shear lone of 25.01 mm< group were lower than that of other groups. Water, crude fat content and cooking loss have no difference between the 3 groups. The hardness of backfat thickness 25.01mm< group were higher compared to those for backfat thickness <11.80mm and $11.80\~25.01mm$ group. The yellowness $(b^*)$ of meat and fat color in backfat thickness 25.01mm< group were lower compared to those for backfat thickness <11.80mm and $11.80\~25.01mm$ group. The stearic acid and saturated fatty acid content were higher compared to those for backfat thickness <11.80mm and $11.80\~25.01mm$ group but the linoleic acid and unsaturated fatty acid content were lower.

재래돼지 수컷과 랜드레이스 암컷을 교배하여 생산된 $F_1$ 182두의 등지방 두께(<11.80mm, $11.80\~25.01mm$, 25.01mm<)에 따른 돼지의 도체 특성, 이화학적 특성 및 지방산 조성을 비교한 결과는 다음과 같다. 등지방 두께가 25.01mm<그룹이 <11.80mm와 $11.80\~25.01mm$ 그룹에 비해 생체중, 도체중 및 지육률은 높았지만, 최종 등급은 낮았다. 등지방 두께가 25.01mm< 그룹이 <11.80mm와 $11.80\~25.01mm$그룹에 비해 pH가 높았고, 전단가는 가장 낮았다. 등지방 두께에 따른 수분, 조지방 함량 및 가열 감량은 차이가 없었다. 등지방 두께가 25.01m<그룹이 <11.80mm와 $11.80\~25.01mm$ 그룹에 비해 경도가 높았다. 등지방 두께가 25.01mm< 그룹이 <11.80mm와 $11.80\~25.01mm$ 그룹의 육 및 지방색의 황색도$(b^*)$는 낮았다. 등지방 두께가 25.01mm< 그룹이 <11.80mm와 $11.80\~25.01mm$ 그룹에 비해 stearic acid와 saturated fatty acid 함량이 높았지만 linoleic acid와 unsaturated fatty acid 함량은 낮았다. 이상의 결과를 요약하면, 등지방 두께에 따라 최종 등급, 황색도$(b^*)$ 및 지방산 조성에서 차이를 보였지만, 등지방 두께가 25.01mm< 그룹은 전단가가 낮고 pH가 높아 돈육의 품질 특성이 양호한 것으로 나타났다.

Keywords

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