1
|
Porto-Fett ACS, McCoy A, Shane LE, Henry E, Osoria M, Shoyer BA, Campano SG, Burson D, Luchansky JB. Fate of Listeria monocytogenes and Shiga Toxin-Producing Escherichia coli on Slices of Beef Bresaola During Refrigerated Storage. MEAT AND MUSCLE BIOLOGY 2022. [DOI: 10.22175/mmb.13918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The viability of multi-strain cocktails of geneticallymarked strains of Listeriamonocytogenes and Shigatoxin-producing Escherichiacoli (STEC) wereseparately monitored on slices of one brand of a commercially-producedbresaola (ca. pH 6.7 and aw 0.899) during extendedrefrigerated storage. Two slices (ca. 8 g each; ca. 10.2 cm wide, ca. 11 cmlong) of bresaola were layered horizontally within a nylon-polyethylene bag.The outer surface of each slice was inoculated (50 µL total; ca. 3.5 logCFU/package)with a rifampicin-resistant (100 mg/ml)cocktail of either L.monocytogenes (fivestrains) or STEC (eight strains). Bags were vacuum-sealed and then stored at 4°or 10°C for 180 or 90 days, respectively. In each of five trials, three bagswere analyzed for pathogen presence at each sampling interval via the USDA-ARSpackage rinse method. In general, levels of L. monocytogenes and STEC decreased by 3.0and 2.4log CFU/package, respectively, after 180 days when bresaola was stored at 4°C.When bresaola was stored at 10°C for 90 days, levels of L. monocytogenes and STEC decreased by 2.4 and 3.1log CFU/package, respectively. Thus, the (brand of) sliced bresaola evaluatedherein did not provide a favorable environment for either persistence oroutgrowth of surface-inoculated cells of L. monocytogenes or STEC.
Collapse
Affiliation(s)
- Anna C. S. Porto-Fett
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| | - Ashley McCoy
- University of Nebraska Department of Animal Science
| | - Laura E. Shane
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| | - Elizabeth Henry
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| | - Manuela Osoria
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| | - Bradley A. Shoyer
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| | | | | | - John B. Luchansky
- USDA, ARS, Eastern Regional research Center Food Safety and Interventions Technologies
| |
Collapse
|
2
|
Andritsos ND, Kallitsis T, Roukas D. Growth potential of
Listeria monocytogenes
in ready‐to‐eat Feta cheese‐based sauce stored at 4°C. J Food Saf 2018. [DOI: 10.1111/jfs.12599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Dimokritos Roukas
- Athens Analysis Laboratories S.A., Microbiology Laboratory Athens Greece
| |
Collapse
|
3
|
Zhang R, Yoo MJ, Gathercole J, Reis MG, Farouk MM. Effect of animal age on the nutritional and physicochemical qualities of ovine bresaola. Food Chem 2018; 254:317-325. [DOI: 10.1016/j.foodchem.2018.02.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 10/18/2022]
|