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  • Title: Freeze-thaw and cooking effects on broiler breast fillets with extreme initial L* values.
    Author: Galobart J, Moran ET.
    Journal: Poult Sci; 2004 Dec; 83(12):2093-7. PubMed ID: 15615026.
    Abstract:
    Five hundred broiler males were grown to 56 d and processed under common terms. Front halves were deboned 24 h postmortem to obtain breast fillets, and CIELAB light reflectance was measured on the skin side of each fillet 24 h later. All fillets were bagged and frozen (-20 degrees C) for 5 mo. Then the fillets exhibiting the lowest (dark), median (normal), and highest (pale) L* values 48 h postmortem were thawed (3 d at 4 degrees C) and cooked (internal temperature 80 degrees C). Thawing reduced the L* value in the pale fillets and increased it in the dark ones, and cooking further increased L* value and reduced the differences in L*, a*, and b* between groups. Thawing and cooking losses were not affected by initial L* value until they were combined. Total losses increased with initial L*, which was in parallel with a lower increase in thickness after cooking.
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