Reciprocal Meat Conference Abstracts

Prediction of Sensory Texture Characteristics of Deli Meat Using Instrumental Analysis

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Abstract

ObjectivesThe objective Experiment 1 was to test different probes and settings than the typically prescribed research method utilizing Texture Profile Analysis (TPA) of 4 deli meat brands, Classic Oven Roasted Turkey (CORT), Brand Oven Roasted Turkey (ORT), Natural Oven Roasted Turkey (NORT), and Bulk Oven Roasted Turkey (BORT), to correlate to descriptive sensory data obtained from a professionally trained panel at a deli processing corporate office. The objective of Experiment 2 was to determine how slice number affects texture using 3 different types of deli meats, hard salami, original roasted turkey breast, and turkey bologna. Increasing the number of slices of deli meat analyzed from 1 to 5 slices stacked at a time.Materials and MethodsFor Experiment 1, three treatments (25% strain, 30% strain, and a distance of 5-mm) were applied to samples. A total of 15 samples per treatment were analyzed, with 3 readings per sample- totaling 45 readings per treatment. Texture analyzer settings were: the treatment being applied, a pre-test speed of 2-mm/s, test speed of 0.5-mm/s, post-test speed of 0.5-mm/s, and a trigger force of 5-g. For Experiment 2 texture analyzer settings were a distance of 5-mm, a pre-test speed of 2-mm/s, test speed of 0.5-mm/s, post-test speed of 0.5-mm/s, and a trigger force of 5-g.ResultsExperiment 1 showed treatment distance was able to correlate mean hardness with sensory amount of striations (r = 0.85 and R2 = 0.73) and showed a ‘good’ correlation between mean chewiness and amount of striations (r = 0.72 and R2 = 0.67). Mean cohesiveness was a ‘good’ indicator of sensory fibrousness between teeth at treatment level 30% strain (r = 0.71 and R2 = 0.70). For Experiment 2, increasing stack size proved to be an ‘excellent’ predictor of sample mean hardness and chewiness for brands Hillshire Farms Hard Salami (HFHS) and Oscar Mayer Oven Roasted Turkey Breast (OMORT), and a ‘good’ predictor of mean hardness for Oscar Mayer Turkey Bologna (OMTB). Increasing the number of slices on brand OMTB showed this had an ‘excellent’ correlation between slice number and average springiness, while the other two brands (HFHS and OMORT) depicted ‘good’ correlations. Increasing the number of slices showed a ‘good’ correlation between brands OMORT and OMTB and mean cohesiveness and mean resilience.ConclusionIn conclusion, some sensory attributes were correlated with texture profile analysis readings in Experiment 1; additionally, in Experiment 2, increasing the number of stacked slices showed to increase correlation coefficient (R2) values in most cases.

Keywords: texture profile analysis, Spectrum Sensory Analysis, deli meat

How to Cite:

Baker, B., Bratcher, C., Wang, L. & Jiang, T., (2018) “Prediction of Sensory Texture Characteristics of Deli Meat Using Instrumental Analysis”, Meat and Muscle Biology 1(2). doi: https://doi.org/10.221751/rmc2016.035