Journal
FOOD RESEARCH INTERNATIONAL
Volume 56, Issue -, Pages 226-235Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2013.12.023
Keywords
Celta ham; Biceps femoris; Semimembranosus; Sarcoplasmic and myofibrillar proteins; Free amino acids
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Funding
- Xunta de Galicia (The Regional Government) [FEADER 2010/15]
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The effect of the muscle type [semimembranosus (SM) and biceps lemons (BF)] on the evolution of free amino acids and sarcoplasmic and myofibrillar proteins throughout the manufacture of Celta dry-cured ham was studied. A total of thirty Celta hams were analyzed, 5 in the green stage, 5 after the end of the salting stage, 5 after 120 days of post-salting, 5 after the end of the drying-ripening stage, 5 after 165 days and 5 after 330 days of bodega step. Possibly due to its higher moisture values, the BF muscle underwent higher protein degradation than the SM muscle. The average of total FAA content increased significantly (P < 0.001) from 567.3 and 570.3 mg/100 g of dry matter in the raw pieces to 7884.1 and 4595.9 mg/100 g of dry matter at the end of the bodega stage for BF and SM muscles, respectively. SDS-PAGE analysis also revealed that myofibrillar proteins were more intensely degraded in BF muscle, differences being more evident for the 48.9 kDa and 33.1 kDa proteins. (C) 2013 Elsevier Ltd. All rights reserved.
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