Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model

Autores
Patriarca, Andrea Rosana; Vaamonde, Graciela; Fernández Pinto, Virginia Elena; Comerio, Ricardo
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Germination and growth of Wallemia sebi were examined on media of aw adjusted with glycerol in the range of 0.96-0.77, at 25°C and 30°C. The effect of temperature on the germination time was significant except between 0.95 and 0.88aw. At low aw levels as well as above 0.95, the increase of temperature produced an increment in the germination time. The minimum aw for germination was also affected by temperature, being lower at 25°C (0.80 aw) than at 30°C (0.82 aw). Radial growth rates at 25°C were higher than at 30°C. The optimum aw value for growth of W. sebi was 0.94 at both temperatures. The minimum aw for growth was higher than minimum for germination and was also dependent on temperature (0.84 at 25°C and 0.86 at 30°C). An empirical mathematical model was fitted to the measured growth data, providing a good approach to the description of the effect of aw on the radial growth rate of W. sebi.
Fil: Patriarca, Andrea Rosana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Comerio, Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina
Materia
Growth
Predictive Microbiology
Temperature
Wallemia
Water Activity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/38146
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive modelPatriarca, Andrea RosanaVaamonde, GracielaFernández Pinto, Virginia ElenaComerio, RicardoGrowthPredictive MicrobiologyTemperatureWallemiaWater Activityhttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2Germination and growth of Wallemia sebi were examined on media of aw adjusted with glycerol in the range of 0.96-0.77, at 25°C and 30°C. The effect of temperature on the germination time was significant except between 0.95 and 0.88aw. At low aw levels as well as above 0.95, the increase of temperature produced an increment in the germination time. The minimum aw for germination was also affected by temperature, being lower at 25°C (0.80 aw) than at 30°C (0.82 aw). Radial growth rates at 25°C were higher than at 30°C. The optimum aw value for growth of W. sebi was 0.94 at both temperatures. The minimum aw for growth was higher than minimum for germination and was also dependent on temperature (0.84 at 25°C and 0.86 at 30°C). An empirical mathematical model was fitted to the measured growth data, providing a good approach to the description of the effect of aw on the radial growth rate of W. sebi.Fil: Patriarca, Andrea Rosana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Comerio, Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; ArgentinaElsevier Science2001-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38146Patriarca, Andrea Rosana; Vaamonde, Graciela; Fernández Pinto, Virginia Elena; Comerio, Ricardo; Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model; Elsevier Science; International Journal of Food Microbiology; 68; 1-2; 8-2001; 61-670168-1605CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0168-1605(01)00470-6info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168160501004706info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:25Zoai:ri.conicet.gov.ar:11336/38146instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:07:25.772CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
title Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
spellingShingle Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
Patriarca, Andrea Rosana
Growth
Predictive Microbiology
Temperature
Wallemia
Water Activity
title_short Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
title_full Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
title_fullStr Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
title_full_unstemmed Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
title_sort Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model
dc.creator.none.fl_str_mv Patriarca, Andrea Rosana
Vaamonde, Graciela
Fernández Pinto, Virginia Elena
Comerio, Ricardo
author Patriarca, Andrea Rosana
author_facet Patriarca, Andrea Rosana
Vaamonde, Graciela
Fernández Pinto, Virginia Elena
Comerio, Ricardo
author_role author
author2 Vaamonde, Graciela
Fernández Pinto, Virginia Elena
Comerio, Ricardo
author2_role author
author
author
dc.subject.none.fl_str_mv Growth
Predictive Microbiology
Temperature
Wallemia
Water Activity
topic Growth
Predictive Microbiology
Temperature
Wallemia
Water Activity
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Germination and growth of Wallemia sebi were examined on media of aw adjusted with glycerol in the range of 0.96-0.77, at 25°C and 30°C. The effect of temperature on the germination time was significant except between 0.95 and 0.88aw. At low aw levels as well as above 0.95, the increase of temperature produced an increment in the germination time. The minimum aw for germination was also affected by temperature, being lower at 25°C (0.80 aw) than at 30°C (0.82 aw). Radial growth rates at 25°C were higher than at 30°C. The optimum aw value for growth of W. sebi was 0.94 at both temperatures. The minimum aw for growth was higher than minimum for germination and was also dependent on temperature (0.84 at 25°C and 0.86 at 30°C). An empirical mathematical model was fitted to the measured growth data, providing a good approach to the description of the effect of aw on the radial growth rate of W. sebi.
Fil: Patriarca, Andrea Rosana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Comerio, Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina
description Germination and growth of Wallemia sebi were examined on media of aw adjusted with glycerol in the range of 0.96-0.77, at 25°C and 30°C. The effect of temperature on the germination time was significant except between 0.95 and 0.88aw. At low aw levels as well as above 0.95, the increase of temperature produced an increment in the germination time. The minimum aw for germination was also affected by temperature, being lower at 25°C (0.80 aw) than at 30°C (0.82 aw). Radial growth rates at 25°C were higher than at 30°C. The optimum aw value for growth of W. sebi was 0.94 at both temperatures. The minimum aw for growth was higher than minimum for germination and was also dependent on temperature (0.84 at 25°C and 0.86 at 30°C). An empirical mathematical model was fitted to the measured growth data, providing a good approach to the description of the effect of aw on the radial growth rate of W. sebi.
publishDate 2001
dc.date.none.fl_str_mv 2001-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/38146
Patriarca, Andrea Rosana; Vaamonde, Graciela; Fernández Pinto, Virginia Elena; Comerio, Ricardo; Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model; Elsevier Science; International Journal of Food Microbiology; 68; 1-2; 8-2001; 61-67
0168-1605
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38146
identifier_str_mv Patriarca, Andrea Rosana; Vaamonde, Graciela; Fernández Pinto, Virginia Elena; Comerio, Ricardo; Influence of water activity and temperature on the growth of Wallemia sebi: Application of a predictive model; Elsevier Science; International Journal of Food Microbiology; 68; 1-2; 8-2001; 61-67
0168-1605
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0168-1605(01)00470-6
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168160501004706
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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