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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/56020
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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 Técnicas2025-09-29T09:55:53Zoai: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:34982025-09-29 09:55:54.001CONICET 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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1844613682835750912 |
score |
13.070432 |