4.7 Article

Characteristics of Pork Muscles Cooked to Varying End-Point Temperatures

Journal

FOODS
Volume 10, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/foods10122963

Keywords

cooking loss; instrumental cooked color; pork; Warner-Bratzler shear force

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The quality characteristics of fresh pork ham muscles were evaluated after cooking to different internal temperatures. The study found differences in color, cooking losses, tenderness, and pH among the different muscles at various cooking temperatures.
M. biceps femoris (BF), m. semimembranosus (SM) and m. semitendinosus (ST) from fresh pork ham were evaluated for characteristics of quality after cooking to an internal endpoint temperature of 62 degrees C or 73 degrees C. Fresh ham muscles from the left side (N = 68) were cut into 2.54 cm thick chops and allocated to cooking loss, Warner-Bratzler shear force (WBSF), pH and instrumental cooked color analysis. Cooking losses were greater (p < 0.0001) for SM and chops cooked to an internal temperature of 73 degrees C (p < 0.0001), whereas WBSF did not differ (p = 0.2509) among the three muscles, but was greater (p < 0.0001) in chops cooked to 73 degrees C. Fresh muscle's pH was greater (p < 0.05) in ST than BF or SM. Lastly, the interactive effect (p < 0.05) of muscle x endpoint temperature for ST chops cooked to 73 degrees C was lighter (L*), but, when cooked to 62 degrees C, they were more red (a*), more yellow (b*) and incurred less color change from red to brown than BF or SM. The current results suggest it is plausible for BF, SM and ST to be considered for alternative uses instead of traditional value-added manufacturing.

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