Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae

Autores
Sosa, Oscar Antonio; Maria Cristina Manca de Nadra; Farias, Marta Elena
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The behaviour of the flocculent Kloeckera apiculata strain in coculture with the nonflocculent Saccharomyces cerevisiae strain, both yeasts isolated from wine, has been analyzed. Pure culture of Kloeckera apiculata (apiculate yeast) exhibits 75 % flocculation in the yeast extract/peptone/glucose (containing 20 g/L of glucose, YPG20) medium after 24-hour incubation at 28 °C. This yeast expresses a weak flocculent phenotype in glucose-poor medium (10 % of flocculated cells). Increasing the glucose concentrations in this medium induces yeast flocculation. When the apiculate yeast was co-inoculated with a nonflocculent strain of Saccharomyces cerevisiae (elliptic yeast), an increase of the number of elliptic cells that settled at the bottom of the culture was observed. Electron microscopy observations of the aggregates formed in the mixed culture confirmed that apiculate and elliptic yeasts can interact and establish a binding between them through homogeneous mucus. However, a lower percentage of Kloeckera apiculata flocculation with respect to the pure cultures was observed, this behaviour being correlated with a higher rate of glucose consumption by Saccharomyces cerevisiae. The prompt coflocculation of Kloeckera apiculata with Saccharomyces strains and the induction of this phenomenon by glucose could be considered an important biotechnological tool for the early decreasing of indigenous saccharomycetic flora from the media, before the inoculation of a selected sta rter strain to carry out a more controlled alcohol fermentation.
Fil: Sosa, Oscar Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
Fil: Maria Cristina Manca de Nadra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
Fil: Farias, Marta Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
Materia
Kloeckera Apiculata
Saccharomyces Cervisiae
Flocculation
Wine Strains
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/56020
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/56020
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiaeSosa, Oscar AntonioMaria Cristina Manca de NadraFarias, Marta ElenaKloeckera ApiculataSaccharomyces CervisiaeFlocculationWine Strainshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The behaviour of the flocculent Kloeckera apiculata strain in coculture with the nonflocculent Saccharomyces cerevisiae strain, both yeasts isolated from wine, has been analyzed. Pure culture of Kloeckera apiculata (apiculate yeast) exhibits 75 % flocculation in the yeast extract/peptone/glucose (containing 20 g/L of glucose, YPG20) medium after 24-hour incubation at 28 °C. This yeast expresses a weak flocculent phenotype in glucose-poor medium (10 % of flocculated cells). Increasing the glucose concentrations in this medium induces yeast flocculation. When the apiculate yeast was co-inoculated with a nonflocculent strain of Saccharomyces cerevisiae (elliptic yeast), an increase of the number of elliptic cells that settled at the bottom of the culture was observed. Electron microscopy observations of the aggregates formed in the mixed culture confirmed that apiculate and elliptic yeasts can interact and establish a binding between them through homogeneous mucus. However, a lower percentage of Kloeckera apiculata flocculation with respect to the pure cultures was observed, this behaviour being correlated with a higher rate of glucose consumption by Saccharomyces cerevisiae. The prompt coflocculation of Kloeckera apiculata with Saccharomyces strains and the induction of this phenomenon by glucose could be considered an important biotechnological tool for the early decreasing of indigenous saccharomycetic flora from the media, before the inoculation of a selected sta rter strain to carry out a more controlled alcohol fermentation.Fil: Sosa, Oscar Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; ArgentinaFil: Maria Cristina Manca de Nadra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; ArgentinaFil: Farias, Marta Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; ArgentinaUniversity of Zagreb. Faculty of Food Technology and Biotechnology2008-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/56020Sosa, Oscar Antonio; Maria Cristina Manca de Nadra; Farias, Marta Elena; Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae; University of Zagreb. Faculty of Food Technology and Biotechnology; Food Technology and Biotechnology; 46; 4; 4-2008; 413-4181330-98621334-2606CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://hrcak.srce.hr/30418info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:50:56Zoai:ri.conicet.gov.ar:11336/56020instacron: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:34982025-10-15 14:50:57.057CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
title Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
spellingShingle Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
Sosa, Oscar Antonio
Kloeckera Apiculata
Saccharomyces Cervisiae
Flocculation
Wine Strains
title_short Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
title_full Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
title_fullStr Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
title_full_unstemmed Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
title_sort Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae
dc.creator.none.fl_str_mv Sosa, Oscar Antonio
Maria Cristina Manca de Nadra
Farias, Marta Elena
author Sosa, Oscar Antonio
author_facet Sosa, Oscar Antonio
Maria Cristina Manca de Nadra
Farias, Marta Elena
author_role author
author2 Maria Cristina Manca de Nadra
Farias, Marta Elena
author2_role author
author
dc.subject.none.fl_str_mv Kloeckera Apiculata
Saccharomyces Cervisiae
Flocculation
Wine Strains
topic Kloeckera Apiculata
Saccharomyces Cervisiae
Flocculation
Wine Strains
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The behaviour of the flocculent Kloeckera apiculata strain in coculture with the nonflocculent Saccharomyces cerevisiae strain, both yeasts isolated from wine, has been analyzed. Pure culture of Kloeckera apiculata (apiculate yeast) exhibits 75 % flocculation in the yeast extract/peptone/glucose (containing 20 g/L of glucose, YPG20) medium after 24-hour incubation at 28 °C. This yeast expresses a weak flocculent phenotype in glucose-poor medium (10 % of flocculated cells). Increasing the glucose concentrations in this medium induces yeast flocculation. When the apiculate yeast was co-inoculated with a nonflocculent strain of Saccharomyces cerevisiae (elliptic yeast), an increase of the number of elliptic cells that settled at the bottom of the culture was observed. Electron microscopy observations of the aggregates formed in the mixed culture confirmed that apiculate and elliptic yeasts can interact and establish a binding between them through homogeneous mucus. However, a lower percentage of Kloeckera apiculata flocculation with respect to the pure cultures was observed, this behaviour being correlated with a higher rate of glucose consumption by Saccharomyces cerevisiae. The prompt coflocculation of Kloeckera apiculata with Saccharomyces strains and the induction of this phenomenon by glucose could be considered an important biotechnological tool for the early decreasing of indigenous saccharomycetic flora from the media, before the inoculation of a selected sta rter strain to carry out a more controlled alcohol fermentation.
Fil: Sosa, Oscar Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
Fil: Maria Cristina Manca de Nadra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
Fil: Farias, Marta Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina
description The behaviour of the flocculent Kloeckera apiculata strain in coculture with the nonflocculent Saccharomyces cerevisiae strain, both yeasts isolated from wine, has been analyzed. Pure culture of Kloeckera apiculata (apiculate yeast) exhibits 75 % flocculation in the yeast extract/peptone/glucose (containing 20 g/L of glucose, YPG20) medium after 24-hour incubation at 28 °C. This yeast expresses a weak flocculent phenotype in glucose-poor medium (10 % of flocculated cells). Increasing the glucose concentrations in this medium induces yeast flocculation. When the apiculate yeast was co-inoculated with a nonflocculent strain of Saccharomyces cerevisiae (elliptic yeast), an increase of the number of elliptic cells that settled at the bottom of the culture was observed. Electron microscopy observations of the aggregates formed in the mixed culture confirmed that apiculate and elliptic yeasts can interact and establish a binding between them through homogeneous mucus. However, a lower percentage of Kloeckera apiculata flocculation with respect to the pure cultures was observed, this behaviour being correlated with a higher rate of glucose consumption by Saccharomyces cerevisiae. The prompt coflocculation of Kloeckera apiculata with Saccharomyces strains and the induction of this phenomenon by glucose could be considered an important biotechnological tool for the early decreasing of indigenous saccharomycetic flora from the media, before the inoculation of a selected sta rter strain to carry out a more controlled alcohol fermentation.
publishDate 2008
dc.date.none.fl_str_mv 2008-04
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/11336/56020
Sosa, Oscar Antonio; Maria Cristina Manca de Nadra; Farias, Marta Elena; Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae; University of Zagreb. Faculty of Food Technology and Biotechnology; Food Technology and Biotechnology; 46; 4; 4-2008; 413-418
1330-9862
1334-2606
CONICET Digital
CONICET
url http://hdl.handle.net/11336/56020
identifier_str_mv Sosa, Oscar Antonio; Maria Cristina Manca de Nadra; Farias, Marta Elena; Behaviour of Kloeckera apiculata flocculent strain in coculture with Saccharomyces cerevisiae; University of Zagreb. Faculty of Food Technology and Biotechnology; Food Technology and Biotechnology; 46; 4; 4-2008; 413-418
1330-9862
1334-2606
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://hrcak.srce.hr/30418
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv University of Zagreb. Faculty of Food Technology and Biotechnology
publisher.none.fl_str_mv University of Zagreb. Faculty of Food Technology and Biotechnology
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 13.22299

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