Effect of Mugwort Powder and Fish Oil Addition on the Fatty Acid of Chicken Meat

쑥 분말과 어유의 첨가가 계육의 지방산 조성에 미치는 영향

  • Published : 2006.09.30

Abstract

This study was conducted to investigate the influence of dietary mugwort and fish oil on meat quality of chicken. Broilers were randomly assigned to one of four dietary treatment: 1) Control (commercial feed) 2) T1 (commercial feed supplemented with 3% mugwort powder) 3) T2 (commercial feed with 4% fish oil) and 4) T3 (commercial feed with 3% mugwort powder and 4% fish oil). They were fed the experimental diets for five weeks and slaughtered. After that, the meat samples were vacuum packaged and stored at $4{\pm}1^{\circ}C$. The meat quality were analyzed for meat samples stored over a period of 0, 5, 10 and 15 days. The major fatty acids found in chicken meat were oleic acid, palmitic acid, linoleic acid, stearic acid. However, the fatty acid was not significantly different between control and treatment groups (p>0.05). Palmitoleic acid, EPA, DHA contents were higher in T3 treatment group than the control. The TBARS (thiobarbituric acid reactive substances) of all treatments significantly increased during the storage periods (p<0.05). The TBARS of the thigh was rather higher than that of the breast. The WHC (water holding capacity) of breast and thigh were significantly increased in both control and treatment groups during storage (p<0.05). WHC of the breast was rather higher than that of the thigh. The drip loss was tended to increase during the storage periods (p<0.05).

쑥 분말 3 %, 정어리유 4 %, 쑥 분말 3 %와 정어리유 4 %를 처리구에 따라 5주간 급여한 후 도계하여, 가슴살과 다리살을 냉장온도($4{\pm}1^{\circ}C$)에서 15일간 저장하면서 지방산 조성, TBARS가, 보수성, 육즙 손실의 변화를 조사하였다. 지방산은 근육의 부위 및 쑥과 어유의 급여 수준에 관계없이 oleic acid, palmitic acid, linoleic acid, stearic acid의 순으로 함량이 높았으나, 유의성은 없었다(p<0.05). 또한 T3 처리구에서는 palmitoleic acid와 EPA, DHA의 함량이 대조구보다 많았다. TBARS가는 저장기간이 경과함에 따라 전처리구에서 증가하였고(p<0.05), 전반적으로 다리살 부위가 가슴살부위의 TBARS가 보다 높은 경향이었다. 보수력은 저장기간이 경과함에 따라 가슴살과 다리살의 보수력은 증가하는 경향이었고(p<0.05), 처리구간에서는 서로 비슷하였으며, 전반적으로 가슴살이 다리살 부위보다 보수력이 높았다. 육즙 손실은 저장기간이 경과함에 따라 전처리구에서 점차 증가하였고(p<0.05), 처리구간에서는 T1구와 T3구가 상대적으로 육즙 손실이 적었다.

Keywords

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