Effects of Citrus Byproduct Diet on Meat Color, Rancidity and Freshness in Korean Native Chickens during Cold Storage

감귤 부산물 급여가 냉장 중 토종 닭고기의 표면 색도, 지방산패도 및 선도에 미치는 영향

  • Moon, Yoon-Hee (Dept. of Food Science and Biotechnology, Kyungsung University)
  • 문윤희 (경성대학교 식품생명공학과)
  • Received : 2009.04.27
  • Accepted : 2009.08.06
  • Published : 2009.08.31

Abstract

The effects of feeding citrus byproducts on the quality of Korean native chickens were investigated during cold storage. Two samples of Korean native chickens (39 weeks old, $1.30{\pm}0.5$ kg) were used for the study: T0 (chickens not fed citrus byproducts) and T1(chickens fed a 4% citrus byproduct diets since from age 17 weeks until 39 weeks old). The breast and thigh meat of each sample were vacuum-packed, and then used for experiments on change in Hunter's color values, acid values (AV), peroxide values (POV), thiobarbituric acid (TBA) values, electron donating ability (EDA), volatile basic nitrogen (VBN) and total plate count during storage for two weeks at 3C. Changes in $L^*$, $a^*$ and $b^*$ values were slower in T1 than in T0. T1 showed slower increment rates for AV, POV, and TBA values during storage, as well as better antioxidant activity, than T0. T1 showed slower increment rates for VBN and total plate counts during storage than T0. Thus, feeding citrus byproducts suppressed change in Hunter's color value, rancidity, and freshness in breast and thigh meat during storage, and resulted in higher EDA value (p<0.05), which implies that the diet has positive effects in maintaining high meat quality.

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