Proteomics Approach in Meat Science: A Model Study for Hunter L* Value and Drip Loss
2004
Hwang, I.H. (National Livestock Research Institute, RDA, Suwon, Republic of Korea), E-mail: [email protected]
Proteins related to hunter L* value and drip loss in pig m. longissimus dorsi during ageing were identified. Two-dimension gel-based proteome analysis was conducted at 0,1,3, and 7 day postmortem for six male landraces with various meat quality traits. Results showed hunter L* value and drip loss were highly correlated (r=0.8, P less than 0.05), and high lightness and drip loss coincided with high proteolysis rate. Twelve proteins were related to hunter L* value, which included contractile apparatus and related proteins such as alpha actin, myosin light chain 1, cofilin 2 and troponin T, and chaperone proteins of alpha-b crystalline.
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