The objective of this study was to investigate the effects of dry-aging and wet-aging conditions on the chemical composition, meat quality traits (color, water holding capacity, cooking loss, WBSF and pH) and shelf-life TBARS (2-thiobarbituric acid reactive substances) and VBN (volatile basic nitrogen) of loin (M. longissimus thoracis), sirloin (M. glutaeusmedus) and top-round (M. semimembranosus) cuts of Hanwoo cows. The dry-aging condition (temperature ℃, relative humidity %) was done for 60 d as 2℃, 65％, 20 d＋2℃, 75％, 20 d＋4℃, 85％, 20 d while, the wet-aging was done for 60 d at 1℃, 85%. Results revealed that moisture content was significantly higher in the dry-aged samples than that of the wet-aged samples at 60 d (p<0.05). The a*- and b*-values were significantly higher in 3 cuts as compared with those treated with wet-aging condition. During the dry-aging time, the WHC significantly increased in the loin and sirloin and they were significantly higher than wet-aging condition at 40 d and 60 d (p<0.05). The WBSF values significantly decreased with increased aging time and there was no significant difference between two aging methods. The TBARS and VBN contents significantly increased with increased aging time for all the wet- and dry-aged cuts, and their levels still fell within the acceptable standard limit. Generally, the TBARS and VBN contents were significantly higher in the dry-aged cuts, probably due to the increased levels of protein and fatty acids oxidations. Based on the results obtained in the present study, it can be suggested that application of dry-aging method can improve the quality characteristics of beef.

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 공시축 및 공시재료
    2. 분석방법
    3. 통계분석
Ⅲ. 결과 및 고찰
    1. 일반성분
    2. 육색
    3. 보수력, 가열감량 및 전단력
    4. pH
    5. TBARS(지방산화도) 및 VBN(단백질변패도)
Ⅳ. 요약
Ⅴ. 참고문헌

• 하윤경(농촌진흥청 국립축산과학원 축산생명환경부/전북대학교 농업생명과학대학 동물자원과학과) | Yoonkyung Ha (Animal Products Utilization Division, National Institute of Animal Science, RDA/Department of Animal Science, Chonbuk National University)
• 황인호(전북대학교 농업생명과학대학 동물자원과학과) | Inho Hwang (Department of Animal Science, Chonbuk National University)
• 최주희(농촌진흥청 국립축산과학원 축산생명환경부) | Juhui Choi (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 강선문(농촌진흥청 국립축산과학원 축산생명환경부) | Sun Moon Kang (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 김윤석(농촌진흥청 국립축산과학원 축산생명환경부) | Yunseok Kim (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 설국환(농촌진흥청 국립축산과학원 축산생명환경부) | Kuk Hwan Seol (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 서현우(농촌진흥청 국립축산과학원 축산생명환경부) | Hyun Woo Seo (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 김진형(농촌진흥청 국립축산과학원 축산생명환경부) | Jinhyoung Kim (Animal Products Utilization Division, National Institute of Animal Science, RDA)
• 조수현(농촌진흥청 국립축산과학원 축산생명환경부) | Soohyun Cho (Animal Products Utilization Division, National Institute of Animal Science, RDA) Corresponding author