Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
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Effects of Dietary Mugwort on Nutritional Composition and Physicochemical Characteristics of Thawed Hanwoo Beef

쑥의 급여가 동결 한우육의 성분조성 및 해동 후 물리화학적 특성변화에 미치는 영향

  • Moon, Yoon-Hee (Dept. of Food Science and Biotechnology, Kyungsung University)
  • 문윤희 (경성대학교 식품생명공학과)
  • Received : 2012.03.05
  • Accepted : 2012.04.26
  • Published : 2012.04.30
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Abstract

The nutritional composition of thawed Hanwoo beef fed no mugwort (T0) and thawed Hanwoo beef fed mugwort (T1) were analyzed after freezing at $-20^{\circ}C$ for 12 months. Also the effect of feeding mugwort was investigated by comparing physicochemical and palatability changes by chilling the beef after thawing. There were no significant differences in general components of T0 and T1 Hanwoo beef. Among the minerals, there were no significant differences in the contents of Ca, P, K, Mg and Zn, however Na content in T0 and Fe content in T1 were significantly higher. The total amino acid did not show a significant difference but leucine was found to be higher in T0 than T1, and glycine, cysteine, histidine and arginine were higher in T1 than T0. Regarding fatty acids, stearic acid was higher in T0, while palmitoleic acid, oleic acid and total unsaturated fatty acid was significantly higher in T1. The hardness value became lower by chilling after thawing regardless mugwort consumption, and therefore the tenderness improved. The freshness, fat rancidity and antioxidant activity of thawed Hanwoo beef changed more slowly for T1 than T0, which indicates that feeding mugwort had a positive effect. There were no significant differences in taste, juiciness, tenderness or and palatability of the cooked beef between T0 and T1 for both 0 days and 3 days after thawing. However, the aroma of cooked T1 beef was significantly superior.

쑥을 급여하지 않은 한우육(T0구)과 쑥을 급여한 한우육(T1구)을 $-20^{\circ}C$에서 12개월간 동결한 후 해동하여 일반성분, 무기질, 아미노산 및 지방산 조성을 분석하였다. 한편, 해동 후 냉장에 의한 물리 화학적 및 기호적 특성 변화를 비교하여 쑥의 급여 효과를 검토하였다. 동결 한우육의 일반성분은 T0구와 T1구간의 유의적 차이가 없었다. 무기질에서 Ca, P, K, Mg 및 Zn의 함량은 처리구간의 유의적 차이를 보이지 않았으며, Na은 T0구, Fe는 T1구에서 유의적으로 많게 분석되었다. 아미노산 총량은 처리구간의 유의적 차이가 없었으나, leucine은 T0구가 많은 반면 glycine, cysteine, histidine 및 arginine은 T1구가 유의적으로 많게 분석되었다. 지방산에서 stearic acid는 T0구가 많은 반면, palmitoleic acid, oleic acid 및 불포화지방산 함량은 T1구가 유의적으로 많았다. 경도는 쑥의 급여에 관계없이 해동 후 냉장에 의해 낮아져서 연도가 향상됨을 알 수 있었다. 동결 한우육의 신선도, 지방산패도 및 항산화력의 변화는 T0구보다 T1구가 느리게 나타나서 쑥의 급여에 의한 좋은 효과를 보였다. 가열육의 맛, 다즙성, 연도 및 종합적 기호도는 해동 후 0일째와 3일째 모두 처리구간의 유의적 차이가 없었으나, 향은 쑥을 급여한 T1구가 유의적으로 우수하였다.

Keywords

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