Validation of Novel Cultured Cane Sugar and Vinegar Powder to Extend Shelf Life in Fresh Turkey Sausage
Abstract
ObjectivesThe objective of this study was to assess the antimicrobial efficacy of Verdad® Opti. Powder N70 (CSV-P) on inhibition of aerobic plate counts, lactic acid bacteria, and Enterobacteriacae growth kinetics in fresh turkey sausage formulation for 24 d of storage at 40°F.Materials and MethodsFresh turkey sausage formulation containing turkey thigh and skin, water, sea salt, and different levels of natural antimicrobial interventions: (A) Control, (B) 1.55% CSV-P, (C) 2.1% CSV-P, and (D) 2.5% CSV-P. Each treatment was prepared independently, ground, mixed, vacuum stuffed, clipped, and incubated at 40°F. Table 1 outlines the treatment structure, proximate values for the treatments and the different microorganisms outgrowth data. The samples were enumerated for aerobic plate counts (APC), lactic acid bacteria (LAB), Enterobacteriacae (in duplicate), at 6 regular intervals for 24 d of incubation, using Tryptic Soy Agar plate, MRS and VRBG Agar, respectively. Proximate analyses were performed for all the treatments.ResultsTreatments containing CSV-P in general, had lower aw values in comparison to control (Table 1). Water activity is a major factor influencing the outgrowth of lactic acid bacteria strains, thereby preventing early spoilage. The antimicrobial treatments had no major impact on the ionic strength of the formulations as evidenced by similar pH values. The use of CSV-P at 1.55%, 2.10% and 2.50%, showed control of APC outgrowth. CSV-P treatments at all use level also delayed the outgrowth of LAB and Enterobacteriaceae counts compared to the control treatment. The 8 log10 CFU/g limit for APC and LAB bacteria outgrowth was reached in 7 and 6 d, for control treatment, respectively. The 8 log10 CFU/g limit for APC and LAB outgrowth was reached for 1.55% CSV-P in 9 and 7 d, 2.10% CSV-P in 12 and 12 d, and 2.50% CSV-P in 14 and 13 d, respectively. Enterobacteriacae counts did not exceed 1 log10CFU/g increase during 21 d of incubation for any treatments containing CSV-P.ConclusionThe research validates the antimicrobial efficacy of cultured cane sugar and vinegar powder to control the outgrowth of APC, LAB and Enterobacteriacae, thus providing the industry with an effective natural and clean label antimicrobial solution to improve shelf life and food safety in fresh poultry sausage.
Keywords: natural preservation, shelf life extention, turkey, antimicrobial intervention
How to Cite:
McCoy, G., LaSuer, S., Unruh, D., Kumar, S. & Rourke, T., (2018) “Validation of Novel Cultured Cane Sugar and Vinegar Powder to Extend Shelf Life in Fresh Turkey Sausage”, Meat and Muscle Biology 2(2). doi: https://doi.org/10.221751/rmc2018.124
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