{"refrec":{"BRefID":238494,"RR":"<b>Skåra, T.; Cappuyns, A.M.; Van Derlinden, E.; Rosnes, J.T.; Valdramidis, V.P.; Van Impe, J.F.M.</b> (2012). Growth kinetics of <i>Listeria</i> isolated from Salmon and Salmon processing environment: single strains versus cocktails. <i>J. Food Prot. 75(7)</i>: 1227-1235. <a href=\"http://dx.doi.org/10.4315/0362-028X.JFP-11-536\" target=\"_blank\">dx.doi.org/10.4315/0362-028X.JFP-11-536</a>","BEntID":230181,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Food Prot. 75(7)</i>: 1227-1235. <a href=\"https://dx.doi.org/10.4315/0362-028X.JFP-11-536\" target=\"_blank\">https://dx.doi.org/10.4315/0362-028X.JFP-11-536</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Skåra, T.; Cappuyns, A.M.; Van Derlinden, E.; Rosnes, J.T.; Valdramidis, V.P.; Van Impe, J.F.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Skåra, T. <i>et al.</i>","Englishabstract":"The growth dynamics of <i>Listeria monocytogenes</i> strains isolated from salmon or a salmon processing environment and two reference <i>Listeria innocua</i> strains were investigated at refrigerated and close-to-optimal growth temperatures. Estimates for the growth rates and the lag-phase duration at 4, 8, 12, and 30°C were obtained for optical density measurements by using different growth parameter estimation methods, i.e., the serial dilution (SD) method and the relative rate to detection (RRD) method. Both single <i>L. innocua</i> and <i>L. monocytogenes</i> strains and mixtures of <i>L. monocytogenes</i> strains (cocktails) were studied. Both methods show an increase in maximum growth rate (µ<sub>max</sub>) of <i>Listeria</i> with increasing temperatures. Generally, single-strain growth rate estimates were quite similar for both species, although<i>L. monocytogenes</i> showed slightly higher µ<sub>max</sub> estimates at 4°C. The SD method gave the highest estimates for the growth rate, i.e., the estimates from the RRD method were 10 to 20% lower. This should lead to caution when using the latter method for <i>Listeria,</i> particularly at lower temperatures. Overall, the SD method is preferred as this method yields µ<sub>max</sub> estimates close to the biological value and provides estimates for the duration of lag time (?). For discrimination between different strains, ? appeared to be a more suitable parameter than µ<sub>max</sub>. This effect was most prominent for <i>L. innocua</i>. Significant differences were observed between µ<sub>max</sub> and/or ? of <i>L. monocytogenes</i> cocktails and single strains at all temperatures investigated. At 4°C, the average growth rate of cocktails was higher than that of single strains. At 8 and 30°C, this trend was reversed. The average ? of single strains were more than twice as long as those of cocktails at 4°C. At 8 and 30°C, the ? of cocktails were significantly slower than those of single strains, but the variation was considerably less and the differences were less pronounced.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Growth kinetics of <i>Listeria</i> isolated from Salmon and Salmon processing environment: single strains versus cocktails","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2016-07-06","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000306249900006","VABBcode":null,"OpenAcc":0,"DOI":"10.4315/0362-028X.JFP-11-536"},"refs":null,"anarec":{"AnaID":238494,"PubliDate":2012,"Pagination":"1227-1235","XtraPublOfAnaID":null,"ISBN":null,"Volume":"75","Issue":"7","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43237,"SerRR":"Journal of Food Protection. IAFP: Ames, Iowa,.  ISSN 0362-028X; e-ISSN 1944-9097","StandardTitleSer":"Journal of Food Protection","ISSN":"0362-028X","AbbrevSer":"J. 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