{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,10]],"date-time":"2026-01-10T07:36:39Z","timestamp":1768030599065,"version":"3.49.0"},"reference-count":50,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,3,27]],"date-time":"2023-03-27T00:00:00Z","timestamp":1679875200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"FCT: Portuguese Foundation for Science and Technology","doi-asserted-by":"publisher","award":["PEst-OE\/AGR\/UI0772\/2014"],"award-info":[{"award-number":["PEst-OE\/AGR\/UI0772\/2014"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"FCT: Portuguese Foundation for Science and Technology","doi-asserted-by":"publisher","award":["UIDB\/CVT\/00772\/2020"],"award-info":[{"award-number":["UIDB\/CVT\/00772\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Foods"],"abstract":"<jats:p>This study was carried out to identify the behaviour of Escherichia coli O157:H7 and of Listeria monocytogenes inoculated in Maronesa breed beef with different ultimate pH (pHu) (Normal and DFD), and stored at two different temperatures (4 and 9 \u00b0C), during 28 days post mortem (pm). The main objective was to illustrate the problematic feature of dealing with beef showing high pHu and stored at mild abusive temperatures (9 \u00b0C). Beef steaks (ms. longissimus dorsi) were inoculated with low levels (2\u20133 log CFU\/g) of those both pathogens and packed in air, vacuum and three gaseous mixtures with decreasing O2 and increasing CO2 concentrations (MAP70\/20, MAP50\/40 and MAP30\/60). At 4 \u00b0C, the growth of E. coli O157:H7 presented the same pattern on Normal and DFD meat. On the contrary, the growth of L. monocytogenes was higher in DFD meat, revealing the effect of the pHu and its psychotropic character. At abusive temperatures, both pathogens grew, achieving high levels in DFD meat. In these cases, the MAP with the highest CO2 concentration (60%) was revealed to be more effective against the development of E. coli O157:H7, therefore, not exceeding levels of 5 log CFU\/g at the end of storage, while in L. monocytogenes, it reaches 8 log CFU\/g under the same conditions.<\/jats:p>","DOI":"10.3390\/foods12071420","type":"journal-article","created":{"date-parts":[[2023,3,27]],"date-time":"2023-03-27T07:32:09Z","timestamp":1679902329000},"page":"1420","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Behaviour of Escherichia coli O157:H7 and Listeria monocytogenes in Normal and DFD Beef of an Autochthonous Portuguese Breed"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1657-0684","authenticated-orcid":false,"given":"Cristina","family":"Saraiva","sequence":"first","affiliation":[{"name":"Animal and Veterinary Science Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences, UTAD, 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisboa, Portugal"}]},{"given":"S\u00f3nia","family":"Saraiva","sequence":"additional","affiliation":[{"name":"Animal and Veterinary Science Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4662-9408","authenticated-orcid":false,"given":"Luis","family":"Patarata","sequence":"additional","affiliation":[{"name":"Animal and Veterinary Science Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences, UTAD, 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisboa, Portugal"}]},{"given":"Maria","family":"da Concei\u00e7\u00e3o Fontes","sequence":"additional","affiliation":[{"name":"Animal and Veterinary Science Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences, UTAD, 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisboa, Portugal"}]},{"given":"Concei\u00e7\u00e3o","family":"Martins","sequence":"additional","affiliation":[{"name":"Animal and Veterinary Science Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences, UTAD, 5000-801 Vila Real, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,27]]},"reference":[{"key":"ref_1","unstructured":"FAO (2019). 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