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The Relationship Between Carcass Color Grade and Instrumental Values in Pork Loin  

Kim, Dong-Jun (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Lee, Do-Heon (Korea Institute for Animal Products Quality Evaluation)
Lee, Yong-Gi (Korea Institute for Animal Products Quality Evaluation)
Park, Dong-Woen (Korea Institute for Animal Products Quality Evaluation)
Kim, Gap-Don (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Jung, Eun-Young (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Seo, Hyun-Woo (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Jeong, Jin-Yeon (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Joo, Seon-Tea (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Yang, Han-Sul (Division of Applied Life Science (BK21 program), Gyeongsang National University)
Publication Information
Journal of agriculture & life science / v.46, no.1, 2012 , pp. 133-139 More about this Journal
Abstract
The objective of this study was to investigate the relationship between color grade in Korea Institute for Animal Products Quality Evaluation (KAPE) and instrumental color values ($L^*$, $a^*$, $b^*$, ${\Delta}C$ and H) in porcine longissimus dorsi muscle. A total of 538 pigs were selected to classify and to measure the instrumental color values from commercial public slaughter house. All of the instrumental color traits were decreased with increase of color grade (p<0.05). The color grade 1 group had the highest $L^*$ value (65.23) and the color grade 6 group had the lowest $L^*$ value (45.29) among the color grade groups (p<0.05). The color grade had the negative correlation with all the instrumental color traits (p<0.001) and the correlation coefficient between color grade and $L^*$ value was -0.83. In conclusion, instrumental color traits is highly related to color grade, and especially $L^*$ value is an important indicator for both porcine carcass grading and color grading systems in KAPE.
Keywords
Porcine carcass grade; Color grade; Meat color; Pork quality;
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