Effect of plant-derived antimicrobials against multidrug-resistant Salmonella Heidelberg in ground Turkey
| Autor: | Shijinaraj Manjankattil, Claire Peichel, Sally Noll, Zata M Vickers, Shiliang Jia, Timothy J. Johnson, Grace Dewi, Divek V. T. Nair, Anup Kollanoor Johny, Carol J. Cardona |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Turkeys
trans-cinnamaldehyde MICROBIOLOGY AND FOOD SAFETY Colony Count Microbial Human pathogen Biology Citral SF1-1100 law.invention chemistry.chemical_compound Anti-Infective Agents law Salmonella Oils Volatile Animals Food science citral Aroma Essential oil Inoculation General Medicine biology.organism_classification Antimicrobial lemongrass Animal culture Multiple drug resistance antibacterial chemistry Ground turkey Food Microbiology Animal Science and Zoology Chickens |
| Zdroj: | Poultry Science Poultry Science, Vol 101, Iss 3, Pp 101581-(2022) |
| ISSN: | 1525-3171 0032-5791 |
| Popis: | Salmonella Heidelberg (SH) is a highly invasive human pathogen for which turkeys can serve as reservoir hosts. Colonization of turkeys with SH may result in potential contamination and is a greater challenge to prevent in comminuted products. Antimicrobial efficacy of 3 GRAS-status plant-derived antimicrobials (PDAs), lemongrass essential oil (LG), citral (CIT), and trans-cinnamaldehyde (TC), against SH in ground turkey, a comminuted product implicated in several outbreaks, was evaluated in this study. Ground turkey samples inoculated with ∼3.50 log10 CFU/g of a three-strain SH cocktail were treated with either LG, CIT, or TC at either 0.5, 1, or 2% (vol/wt). Samples were stored at 4°C, and bacterial enumeration was performed on d 0, 1, 3, and 5. Appropriate controls were included alongside all treatments. Fluorescence microscopy was performed to evaluate the direct impact of the PDAs against SH in vitro. Appearance and aroma difference testing of raw patties was also performed for select treatments with trained sensory panelists. Treatment with 2% TC yielded a 2.5 log10 CFU/g reduction by d 1 and complete reduction by d 5 (P < 0.05). By d 3, 2% CIT and 2% LG resulted in SH reduction of at least 1.7 log10 CFU/g (P < 0.05). Addition of 1% TC resulted in reduction of at least 1.8 log10 CFU/g by d 3 (P < 0.05). Participants could distinguish PDA-treated raw patties by aroma. Most participants (7/11) could not distinguish patties treated with 0.5% TC based on appearance. Microscopic images indicate that all PDAs resulted in disruption of the SH membrane. Results of the present study indicate that the three tested PDAs, LG, CIT, and TC are effective against SH in ground turkey, indicating their potential use as interventions to mitigate Salmonella contamination in comminuted turkey products. |
| Databáze: | OpenAIRE |
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