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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/8584
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dc.contributor.authorSamelis, J.en
dc.contributor.authorKakouri, A.en
dc.contributor.authorRogga, K. J.en
dc.contributor.authorSavvaidis, I. N.en
dc.contributor.authorKontominas, M. G.en
dc.date.accessioned2015-11-24T16:42:43Z-
dc.date.available2015-11-24T16:42:43Z-
dc.identifier.issn0740-0020-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/8584-
dc.rightsDefault Licence-
dc.subjectlisteria monocytogenesen
dc.subjectnisinen
dc.subjectwhey cheesesen
dc.subjectanthotyrosen
dc.subjectcheddar cheeseen
dc.subjectricotta cheeseen
dc.subjectmixed cultureen
dc.subjectscott-aen
dc.subjectin-situen
dc.subjectresistanceen
dc.subjectmyzithraen
dc.subjectmanourien
dc.subjectstorageen
dc.subjectrefrigerationen
dc.titleNisin treatments to control Listeria monocytogenes post-processing contamination on Anthotyros, a traditional Greek whey cheese, stored at 4 degrees C in vacuum packagesen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1016/S0740-0020(03)00018-2-
heal.identifier.secondary<Go to ISI>://000186742700005-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0740002003000182/1-s2.0-S0740002003000182-main.pdf?_tid=7d520ee1fe4194050472dc292a283204&acdnat=1333040188_4c6697538ef16b886d1bc48fafd7b40d-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2003-
heal.abstractPost-processing contamination and growth of Listeria monocytogenes in whey cheeses stored under refrigeration is an important safety concern. This study evaluated commercially available nisin (Nisaplin(R)) as a biopreservative to control L. monocytogenes introduced post-processing on Anthotyros, a traditional Greek whey cheese, stored at 4degreesC in vacuum packages for up to 45 days. The whey used (pH 6.5-6.7) was from Feta cheese manufacture, and it was subjected either to natural acidification (pH 5.3, readjusted to 6.2 with 10% NaOH) prior to heating, or to direct acidification (pH 6.0-6.2) at 80degreesC with 10% citric acid. Nisin was added either to the whey (100 or 500 IU g(-1)) prior to heating, or to the cheese (500 IU g(-1)) prior to packaging, also inoculated with ca. 10(4) cfu g(-1) of L. monocytogenes strain Scott A. In cheese samples without nisin, L. monocytogenes (PALCAM agar) exceeded 7 log cfu g(-1) after the first 10 days of storage, irrespective of the whey acidification method. All nisin treatments had an immediate lethal effect (0.7-2.2 log reduction) on L. monocytogenes populations at inoculation (day 0), which was more pronounced with 500 IU g(-1) added to the whey. This treatment also suppressed L. monocytogenes growth below the inoculation level for 30 and 45 days in naturally and directly acidified samples, respectively. All other treatments had weak antilisterial effects. Nisin reversed the natural spoilage flora of Anthotyros cheese from Gram-positive to Gram-negative, and this ecological alteration was far more pronounced in the most effective antilisterial treatments. (C) 2003 Elsevier Ltd. All rights reserved.en
heal.publisherElsevieren
heal.journalNameFood Microbiologyen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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