| Autor: |
H. Zhuang, M.J. Rothrock, Jr., K.L. Hiett, K.C. Lawrence, G.R. Gamble, B.C. Bowker, K.M. Keener |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Poultry Research, Vol 28, Iss 4, Pp 801-807 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1056-6171 |
| DOI: |
10.3382/japr/pfz036 |
| Popis: |
SUMMARY: Microbiological safety and quality of fresh chicken meat are important concerns to industry. The objective of this study was to investigate the effects of in-package, non-thermal high voltage dielectric barrier discharge (HVDBD) treatment on microbial quality, safety, and color of fresh chicken breast meat (pectoralis major). Boneless skinless chicken breast meat was collected from a local commercial plant. Non-inoculated meat samples and meat samples inoculated with Campylobacter jejuni and Salmonella Typhimurium were packed in polymeric trays under ambient air conditions. The packaged samples were HVDBD-treated at different voltages (0, 55, 70, or 85 kV) for 180 s, and stored at 4°C for 5 d. Microbial counts (psychrophiles, C. jejuni, S. Typhimurium) and meat color (L* a* b*) were measured before HVDBD treatment and after 5 d of post-treatment storage. Psychrophile growth was inhibited (P < 0.05) and both foodborne pathogens were reduced (P < 0.05) by HVDBD treatments regardless of treatment voltage. No differences in psychrophilic and S. Typhimurium counts were observed between the three treatment voltages; however, increasing treatment voltage beyond 55 kV resulted in additional inactivation of C. jejuni. In terms of meat color, there were no differences (P > 0.05) in a* and b* values between pre-treatment and post-treatment measurements; however, all HVDBD treatments resulted in increased L* value (P < 0.05). Results indicate that in-package HVDBD treatment can be used to reduce both microbial spoilage and foodborne pathogen risks; however, in-package HVDBD treatment may increase pale color in raw chicken breast meat. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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