Chicken nuggets are commonly made with varying levels of textured vegetable proteins, such as soy and wheat, for their ability to bind water and their meat like conformation. This project compared textured wheat proteins and soy proteins at 10%, 20%, 30%, and 40% in emulsified chicken nuggets. A total of 3,024 chicken nuggets were evaluated in replications for batter breader pickup (%), par fry yield (%), cook loss (%), L*, a*, b* color value, texture profile analysis, and sensory analysis. The analysis was conducted for all 4 concentrations of wheat and soy treatments then compared to each other and an all white meat chicken nugget control. All data were analyzed with an α < 0.05 using SAS with PROC GLM and Duncan's MRT, except for sensory data, which were analyzed as a complete randomized block design using analysis of variance with a α < 0.05 and was analyzed using SAS with PROC GLM. Chicken nuggets prepared with increasing levels of textured soy and wheat proteins exhibited generally similar properties in terms of yields, color, and objective texture. Trained panel sensory analysis indicated an increased detection of soy flavors over wheat flavors at higher inclusion percentages (30% and 40%); however, these results do not have any implication of consumer acceptance.
The objectives of this study were (i) to assess the efficacy of quaternary ammonium chloride-based wet foam (WF) and dry foam (DF) sanitizer systems (600 ppm) for reducing Listeria innocua (a nonpathogenic surrogate of Listeria monocytogenes) or a 100.0 μg/ml rifampin-resistant Salmonella Typhimurium LT2 (a nonpathogenic surrogate of Salmonella enterica serovar Typhimurium) on niche and transfer point areas of an unwashed retail deli slicer as compared with traditional chlorine (Cl(-)) treatment (200 ppm) and (ii) to compare sanitizer surface contact times (10 and 15 min) for pathogen surrogate control. Turkey frankfurter slurries inoculated with L. innocua or Salmonella Typhimurium were used to inoculate seven high-risk sites on a commercial slicer. After 30 min of bacterial attachment, slicers were dry wiped to remove excess food matter, followed by a randomly assigned sanitizer treatment. Surviving pathogen surrogate cells were enumerated on modified Oxford's agar not containing antimicrobic supplement (L. innocua) or on tryptic soy agar supplemented with 100 μg/ml rifampin (Salmonella Typhimurium LT2). Replicate-specific L. innocua and Salmonella Typhimurium reductions were calculated as log CFU per square centimeter of control minus log CFU per square centimeter of enumerated survivors for each site. For both organisms, all sanitizer treatments differed from each other, with Cl(-) producing the least reduction and WF the greatest reduction. A significant (P < 0.05) site-by-treatment interaction was observed. The results of the study indicate that quaternary ammonium chloride sanitizers (600 ppm) applied by both WF and DF were more effective at reducing L. innocua and Salmonella Typhimurium than a traditional Cl sanitizer (200 ppm) on unwashed slicer surfaces.
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