Submitted to: European Poultry Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 12/9/2009
Publication Date: 8/23/2010
Citation: Zhuang, H., Savage, E.M. 2010. Comparison of Sensory Flavor and Texture Profiles of Cooked Broiler Breast Fillets Categorized by Raw Meat Color Lightness Values. European Poultry Conference Proceedings. Interpretive Summary: Three replicate trials were conducted to compare sensory descriptive profiles of cooked broiler breast fillets categorized by raw meat color lightness or CIE L* values. In each trial, 20 light, 20 dark and 30 random fillets (42d old birds and deboned at 6-8h postmortem) were obtained from a commercial processing plant. On return to the laboratory, CIE L* a* b* (medial side), pH and weights were measured. Ten fillets for each of 3 lightness categories were chosen based on the L* values as follows: light, L* > 60; medium (middle of random group), 55 < L* < 59; and, dark, L* < 55. Cook yield, Warner-Bratzler shear force and descriptive sensory attributes were measured on the chosen fillets after 7 day frozen storage followed by cooking to an endpoint temperature of 78-80oC. Sensory evaluations were performed by trained descriptive panelists using 0-15 universal intensity scales for 9 flavor and 8 texture attributes. Our results show that there were significant differences among the three lightness categories for pH, thaw loss, cook yield and shear force. There were no significant differences in average flavor intensity scores between the three lightness categories. However, the average intensity scores of the texture attributes, cohesiveness, hardness, rate of breakdown and chewiness of the light fillets were significantly higher than either the dark or the medium fillets (p < 0.01), which did not differ from each other. These results indicate that sensory flavor profiles of cooked broiler breast fillets are similar regardless of raw meat color lightness (or L* values). There is no difference in the texture profiles between the cooked medium and dark fillets. But the sensory texture profile of fillets categorized as light based on CIE L* values is different from those of the fillets categorized as either medium or dark.
Technical Abstract: na