교잡종 돼지에서 도체등급에 따른 돈육의 이화학적 특성 변화

Abstract

The objective of this study was to determine the changes of physico-chemical characteristics in crossbred pigs (Korean native breed × Landrace breed) by carcass grade. Research was conducted on 250 pigs divided into 5 carcass grade groups. Cooking loss have significantly (p<0.05) higher in higher carcass grade. However, water content, crude fat, pH and shear force have no difference. In meat color, a* was significantly (p<0.05) higher in C and D grade, whereas A grade was lower than those of others. L* and b* did not different among the carcass grades. In fat color, A and E grade were significantly (p<0.05) higher in b* and, C was lower than those of others. Adhesiveness and Gumminess of cooked meat were significantly (p<0.05) higher when carcass grade was higher. However hardness, cohesiveness, springiness and brittleness were not different among the carcass grades. Palmitic acid was significantly (p<0.05) higher in higher carcass grades and, saturated fatty acid/unsaturated fatty acid ratio was lower, whereas other fatty acids compositions had no difference among the carcass grades.