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성별이 한우 등심의 육질등급요인, 이화학적 및 관능특성에 미치는 영향

Effect of Sex on Quality Grade Factors, Physicochemical and Sensory Traits of Longissimus Dorsi in Hanwoo

  • 이종문 (농촌진흥청 국립축산과학원) ;
  • 최주희 (농촌진흥청 국립축산과학원) ;
  • 오미화 (농촌진흥청 국립축산과학원) ;
  • 김용수 (농촌진흥청 국립축산과학원) ;
  • 천동원 (농촌진흥청 국립축산과학원) ;
  • 서상철 (농촌진흥청 국립축산과학원) ;
  • 황규석 (농촌진흥청 국립축산과학원) ;
  • 장애라 (농촌진흥청 국립축산과학원)
  • 투고 : 2010.02.19
  • 심사 : 2010.04.05
  • 발행 : 2010.04.30

초록

성별 한우쇠고기의 품질 특성을 조사하기 위하여 육질등급이 5개로 개전된 후 첫 해인 2005년도에 전국에 출하된 42,113두의 육질등급 요인을 조사하였으며, 2005년부터 2008년도 상반기까지 국립축산과학원에서 도축된 257두의 쇠고기 품질을 분석하였다. 성별 한우의 육질등급요인(근내지방도, 육색, 지방색, 조직감, 성숙도)은 유의적인 차이가 있었으며 한우 거세우가 가장 우수하였다(p<0.05). 근내지방도, 성숙도 및 조직감은 거세우가 각각 5.02, 2.17 및 1.31로 가장 우수하였으며 이에 따라 육질등급 지수도 2.75($1^{++}$ 등급 =1, 3등급= 5)로 가장 높았다(p<0.05). 수분함량은 수소가 73.23%로 가장 높았으며, 조지방 함량은 거세우가 17.27% 가장 높았다(p<0.05). 거세우의 명도($L^*$), 전단력 및 보수력은 각각 39.01, 4.03 kg 및 57.08%로 가장 높았으나(p<0.05), 암소와 수소 간의 차이가 없었다. 전단력에 있어서 암소 및 수소가 각각 7.73 kg 및 8.35 kg으로 비교적 높게 나타난 것은 연도 증진에 관련된 연구가 필요한 것으로 판단된다. 관능검사 결과 연도, 다즙성, 향미 및 총 점수에서 거세우가 가장 좋았다(p<0.05). 이와 같은 연구는 시대적으로 변화하는 한우산업의 여건에 따라 단계 별로 수행할 필요가 있으며, 암소의 경우 경산우 비육이 대부분인 우리나라의 실정에 비추어 볼 때 산차별 또는 연령별 품질관련 연구가 더욱 필요하다고 생각된다.

The effect of cattle sex (cow, bull, and steer) on carcass traits of quality grade factors, physicochemical, and sensory traits of Longissimus Dorsi in Hanwoo was evaluated. Carcass traits of 42,113 heads were collected nation-wide and 257 heads were slaughtered to analyze beef quality. Sex affected significantly marbling score, meat color, fat color, texture, maturity, and quality grade of Hanwoo (p<0.05). Hanwoo steer carcasses had the highest marbling score (5.02), maturity (2.17), and texture (1.31) than those of cows and heifers. Crude fat of steers was higher than that of other cows and bulls. Steers showed the highest $L^*$(39.01), Warner-Bratzler shear force (4.03 kg), and water holding capacity (57.08%), however, there was no significant differences between those of cows and bulls. Ultimate$pH_{24}$ was shown difference among sex (5.58-5.69), however, the values remained within normal range. In sensory evaluation analyses, sex affected significantly tenderness, juiciness, and flavor (p<0.05). Also, the over all acceptability of steer beef was significantly higher than that of cow and bull beef. These results could be used as fundamental data set for further research activities to elevate Hanwoo beef qualities (p<0.05).

키워드

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피인용 문헌

  1. Comparison of Meat Color and Nutritional Composition of m. longissimus lumborum from Domestic Fed Hanwoo, Holstein and Imported Angus Steers vol.54, pp.6, 2012, https://doi.org/10.5187/JAST.2012.54.6.455
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