Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Quality Changes of Supraspinatus M. of Hanwoo by Packaging Methods during Chilled Storage

포장방법에 따른 한우 극상근(Supraspinatus Muscle)의 냉장 저장 중 품질 변화

  • Chung, Ku-Young (Division of Animal Science and Biotechnology, College of Life Science and Natural Resource, Sangji University) ;
  • Chung, Eui-Ryung (Division of Animal Science and Biotechnology, College of Life Science and Natural Resource, Sangji University) ;
  • Lee, Hyun-Jung (Korea Food Research Institute)
  • 정구용 (상지대학교 생명자원과학대학 동물생명자원학부) ;
  • 정의룡 (상지대학교 생명자원과학대학 동물생명자원학부) ;
  • 이현정 (한국식품연구원 전통식품연구단)
  • Published : 2007.12.30
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Abstract

The aim of this study was to investigate the quality changes in Supraspinatus muscle of Hanwoo with different packaging methods, such as wrapped packaging (C), vacuum packaging (V) and modified atmosphere packaging (MA). These samples were stored for 25 days under $5^{\circ}C$. Each sample was evaluated for pH, volatile basic mitrogen (VBN) value, purge loss, hardness, meat color and microbial counts. From the results obtained, no significant differences were observed among treatments at the pH. The VBN values of MA were significantly lower than those of C. Also, MA was enhanced stability of meat color compared with other packaging methods during storage days. The purge loss was the most in the V samples, followed by the C and the MA was the lowest. Total bacteria counts of MA sample were significantly lower than those from C. Therefore, it has been concluded that MA could be used as an effective packaging since it extends the shelf life and improve the quality of Hanwoo supraspinatus m.

본 연구에서는 한우 앞다리살 부위육인 극상근(Supraspinatus m.)의 포장방법(랩포장, 진공포장 및 가스포장)에 따른 냉장 저장 중 품질변화를 살펴보았다. 포장방법에 따른 pH 변화는 차이가 없었으며, VBN가는 가스포장구의 경우 저장 25일에도 17.65 mg%로 다른 포장구에 비해 낮은 수준이었다. 포장감량은 진공포장구, 랩포장구, 가스포장구의 순으로 높았으며, 육색은 가스포장구가 저장기간 동안 안정적 육색 값을 나타내었다. 경도는 포장구 중 가스포장구의 경도가 저장 15일에 1.74 kg으로 랩포장구의 2.57 kg 보다 낮았다. 총균수는 랩포장구에서 저장 20일에 8.50 log CFU/g로 가식권에 벗어났으나, 가스포장구의 경우 저장 25일에도 7.41 log CFU/g로서 다른 포장구에 비해 다소 저장성이 지연됨을 알 수 있다. 또한 진공포장구와 가스포장구는 랩포장구에 비하여 낮은 대장균군수를 나타내었다. 따라서 한우 극상근을 냉장 저장할 경우 가스포장 하는 것이 극상근의 품질 변화 없이 연도를 증진시키는 방법 이라 사료된다.

Keywords

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