Effect of Satureja thymbra essential oil on growth-no growth interfaces of Listeria monocytogenes Scott A and Salmonella Enteritidis PT4, at various temperatures, pH, and water activities

dc.contributor.author	Boziaris, IS	en
dc.contributor.author	Chorianopoulos, NG	en
dc.contributor.author	Haroutounian, SA	en
dc.contributor.author	Nychas, G-JE	en
dc.date.accessioned	2014-06-06T06:51:17Z
dc.date.available	2014-06-06T06:51:17Z
dc.date.issued	2011	en
dc.identifier.issn	0362028X	en
dc.identifier.uri	http://dx.doi.org/10.4315/0362-028X.JFP-10-077	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5432
dc.subject.other	antiinfective agent	en
dc.subject.other	essential oil	en
dc.subject.other	water	en
dc.subject.other	article	en
dc.subject.other	chemistry	en
dc.subject.other	dose response	en
dc.subject.other	drug effect	en
dc.subject.other	food contamination	en
dc.subject.other	food preservation	en
dc.subject.other	growth, development and aging	en
dc.subject.other	human	en
dc.subject.other	Listeria monocytogenes	en
dc.subject.other	metabolism	en
dc.subject.other	methodology	en
dc.subject.other	pH	en
dc.subject.other	Salmonella enteritidis	en
dc.subject.other	savory	en
dc.subject.other	species difference	en
dc.subject.other	statistical model	en
dc.subject.other	temperature	en
dc.subject.other	Anti-Bacterial Agents	en
dc.subject.other	Dose-Response Relationship, Drug	en
dc.subject.other	Food Contamination	en
dc.subject.other	Food Preservation	en
dc.subject.other	Humans	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Listeria monocytogenes	en
dc.subject.other	Logistic Models	en
dc.subject.other	Oils, Volatile	en
dc.subject.other	Salmonella enteritidis	en
dc.subject.other	Satureja	en
dc.subject.other	Species Specificity	en
dc.subject.other	Temperature	en
dc.subject.other	Water	en
dc.subject.other	Listeria monocytogenes	en
dc.subject.other	Salmonella	en
dc.subject.other	Salmonella enteritidis	en
dc.subject.other	Satureja thymbra	en
dc.title	Effect of Satureja thymbra essential oil on growth-no growth interfaces of Listeria monocytogenes Scott A and Salmonella Enteritidis PT4, at various temperatures, pH, and water activities	en
heal.type	journalArticle	en
heal.identifier.primary	10.4315/0362-028X.JFP-10-077	en
heal.publicationDate	2011	en
heal.abstract	Antimicrobial efficacy of Satureja thymbra essential oil against Listeria monocytogenes Scott A and Salmonella ser. Enteritidis PT4 was evaluated in vitro by modeling the growth boundaries at various temperatures, pH, and NaCl concentrations. Growth-no growth (turbidity) data were modeled by logistic polynomial regression. The concordance indices and the Hosmer-Lemeshow statistics of both logistic models indicated a good fit to the observed data. Salmonella Enteritidis was more sensitive at increasing salt content as compared with L. monocytogenes. On the other hand, pH changes had greater effect on growth initiation of L. monocytogenes than they had on growth initiation of Salmonella Enteritidis. Presence of essential oil up to 0.06% (vol/vol) had no or little effect on growth initiation of both microorganisms tested, while the concentration of 0.1% (vol/vol) essential oil exhibited great inhibition on growth initiation, especially when it was combined with increased salt content and low temperatures. The antimicrobial potency of S. thymbra essential oil was more pronounced when multiple hurdles were applied. Modeling the growth boundaries offers a useful tool to food microbiologists for assessing the antimicrobial activity in a range of food preservation conditions as compared with the conventional MIC determination. Copyright © International Association for Food Protection.	en
heal.journalName	Journal of Food Protection	en
dc.identifier.issue	1	en
dc.identifier.volume	74	en
dc.identifier.doi	10.4315/0362-028X.JFP-10-077	en
dc.identifier.spage	45	en
dc.identifier.epage	54	en