Differences in heat resistance and growth limits of Listeria monocytogenes strains, and identification of potential biomarkers

S. van der Veen; R. Moezelaar; J.A. Wouters; T. Abee; M.H.J. Wells-Bennik

Abstract

The prepared meal industry must control the growth of Listeria monocytogenes especially when raw milk is used, as it is the vector of listeriosis, a serious foodborne illness which is increasingly frequent. The evaluation of the bacteria¿s growth limits reveals the possible adaptation of strains to specific niches. The 4b serotype, which is generally found in clinical cases of listeriosis, displays the greatest resistance to acid and salt at 30°C, while the 1/2b serotype, mostly present in food, displays resistance to high salt concentrations at 7°C and at a neutral or 5.5 pH. In order to detect the presence of L. monocytogenes strains in food, the specific genes related to particular phenotypes were identified, which could make it possible to use them as biomarkers. A Toolbox to Quantify Enterotxin Gene Expression in a Complex

Original language	English
Publication status	Published - 2008
Event	IDF Dairy Science and Technology Week - Duration: 12 May 2008 → 16 May 2008

Conference/symposium

Conference/symposium	IDF Dairy Science and Technology Week
Period	12/05/08 → 16/05/08

Access to Document

http://www.fil-idf.inaf.ulaval.ca/fileadmin/fichiers/fichiersFIL-IDF/pdf/ABSTRACTS_IDF-DSTW2008.pdf

Cite this

van der Veen, S., Moezelaar, R., Wouters, J. A., Abee, T., & Wells-Bennik, M. H. J. (2008). Differences in heat resistance and growth limits of Listeria monocytogenes strains, and identification of potential biomarkers. Abstract from IDF Dairy Science and Technology Week. http://www.fil-idf.inaf.ulaval.ca/fileadmin/fichiers/fichiersFIL-IDF/pdf/ABSTRACTS_IDF-DSTW2008.pdf

@conference{52b1d3eaf3c74ca8adf014b58c877313,

title = "Differences in heat resistance and growth limits of Listeria monocytogenes strains, and identification of potential biomarkers",

abstract = "The prepared meal industry must control the growth of Listeria monocytogenes especially when raw milk is used, as it is the vector of listeriosis, a serious foodborne illness which is increasingly frequent. The evaluation of the bacteria¿s growth limits reveals the possible adaptation of strains to specific niches. The 4b serotype, which is generally found in clinical cases of listeriosis, displays the greatest resistance to acid and salt at 30°C, while the 1/2b serotype, mostly present in food, displays resistance to high salt concentrations at 7°C and at a neutral or 5.5 pH. In order to detect the presence of L. monocytogenes strains in food, the specific genes related to particular phenotypes were identified, which could make it possible to use them as biomarkers. A Toolbox to Quantify Enterotxin Gene Expression in a Complex",

author = "{van der Veen}, S. and R. Moezelaar and J.A. Wouters and T. Abee and M.H.J. Wells-Bennik",

year = "2008",

language = "English",

note = "IDF Dairy Science and Technology Week ; Conference date: 12-05-2008 Through 16-05-2008",

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TY - CONF

T1 - Differences in heat resistance and growth limits of Listeria monocytogenes strains, and identification of potential biomarkers

AU - van der Veen, S.

AU - Moezelaar, R.

AU - Wouters, J.A.

AU - Abee, T.

AU - Wells-Bennik, M.H.J.

PY - 2008

Y1 - 2008

N2 - The prepared meal industry must control the growth of Listeria monocytogenes especially when raw milk is used, as it is the vector of listeriosis, a serious foodborne illness which is increasingly frequent. The evaluation of the bacteria¿s growth limits reveals the possible adaptation of strains to specific niches. The 4b serotype, which is generally found in clinical cases of listeriosis, displays the greatest resistance to acid and salt at 30°C, while the 1/2b serotype, mostly present in food, displays resistance to high salt concentrations at 7°C and at a neutral or 5.5 pH. In order to detect the presence of L. monocytogenes strains in food, the specific genes related to particular phenotypes were identified, which could make it possible to use them as biomarkers. A Toolbox to Quantify Enterotxin Gene Expression in a Complex

AB - The prepared meal industry must control the growth of Listeria monocytogenes especially when raw milk is used, as it is the vector of listeriosis, a serious foodborne illness which is increasingly frequent. The evaluation of the bacteria¿s growth limits reveals the possible adaptation of strains to specific niches. The 4b serotype, which is generally found in clinical cases of listeriosis, displays the greatest resistance to acid and salt at 30°C, while the 1/2b serotype, mostly present in food, displays resistance to high salt concentrations at 7°C and at a neutral or 5.5 pH. In order to detect the presence of L. monocytogenes strains in food, the specific genes related to particular phenotypes were identified, which could make it possible to use them as biomarkers. A Toolbox to Quantify Enterotxin Gene Expression in a Complex

M3 - Abstract

T2 - IDF Dairy Science and Technology Week

Y2 - 12 May 2008 through 16 May 2008

ER -

Differences in heat resistance and growth limits of Listeria monocytogenes strains, and identification of potential biomarkers

Abstract

Conference/symposium

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