출하체중에 따른 재래돼지와 랜드레이스의 도체 및 돈육의 이화학적 특성 비교
Comparison of Meat Quality and Physicochemical Characteristics of Pork between Korean Native Black Pigs (KNBP) and Landrace by Market Weight
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초록
재래돼지(출하체중 70kg과 90kg)와 랜드레이스(출하체중 110kg)의 도체 및 정육율, 이화학적 특성, 지방산 및 아미노산 조성을 비교 분석한 결과 랜드레이스에 비하여 재래돼지가 도체율은 낮지만 정육율은 유의적(P<0.05)으로 높으며, 등지방 두께는 처리구간에 통계적 유의차는 없었다(P>0.05). 그리고 도체의 이화학적 특성인 pH 및 가열 감량은 재래돼지가 랜드레이스에 비하여 우수한 특성을 지니고 있고, 아미노산 조성에서는 재래돼지가 랜드레이스종에 비해 glutamic acid 함량에서 유의적(P<0.05)으로 높은 결과를 보여 관능검사 및 가공육 원료로서 우수한 품종 특성을 지니고 있다고 판단되었다. 또한 methionine을 제외한 나머지 필수아미노산의 함량이 랜드레이스에 비하여 재래돼지가 유의적(P<0.05)으로 높은 함량을 보였다. 지방산조성은 랜드레이스가 재래돼지에 비해 palmitic, stearic 및 linolenic acid 함량이 유의적(P<0.05)으로 높은 반면, 출하체중이 90kg인 재래돼지는 랜드레이스에 비하여 linoleic acid 함량이 유의적으로 높았다(P<0.05).
Abstract
Results of meat quality, physicochemical characteristics, fatty acid and amino acid composition of the Korean Native Black Pig(70 and 90kg of slaughter weight; KNBP) versus Landrace(110kg of slaughter) are as below. Compared with Landrace, the KNBP exhibited a greater lean meat yield, with no difference in backfat thickness between Landrace and KNBP. There were no difference in chemical composition between Landrace and KNBP, but pH, and cooking loss in the KNBP were superior value than those of the Landrace. These results, KNBP were affected in sensory property and cooking yield. Amino acid content of KNBP and Landrace were significant differences between Landrace and KNBP. Except for the methionine, essential amino acid contents of KNBP had significantly higher than those of Landrace. In the change of fatty acid composition, the Landrace had significantly higher percentages of palmitic(16:0), stearic(18:0) and linolenic(18:3) acids than that of KNBP, but linoleic acid(18:2) was decreased.
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