Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe

Detalhes bibliográficos
Autor(a) principal: Sousa, Maria João
Data de Publicação: 1993
Outros Autores: Teixeira, J. A., Mota, M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/16839
Resumo: The use of flocculant cells of the yeast strain SchizosaFcharomyces pombe for the deacidification of grape musts in continuous culture was developed. An external loop reactor was used to induce flocculation. The flocs obtained were stable in the pH range 3.0-6.0 and in the presence of several sugars. Some inhibition was observed for high (above 6.0) and low (below 3.0) pH values. Once induced, flocculation could no longer be completely inhibited. Vinho Verde, a typical Portuguese wine, has a relatively low ethanol content and a high acid concentration. The external loop reactor loaded with the flocculant cells was used to deacidify a synthetic medium with sugar and malic acid concentrations similar to the ones found in Vinho Verde grape must. A desirable malic acid decrease with moderate glucose consumption was obtained at a dilution rate of 0.7 h-1. Improved results were obtained when the synthetic medium was replaced by Vinho Verde grape must.
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spelling Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombeSchizosaccharomyces pombeMust deacidificationScience & TechnologyThe use of flocculant cells of the yeast strain SchizosaFcharomyces pombe for the deacidification of grape musts in continuous culture was developed. An external loop reactor was used to induce flocculation. The flocs obtained were stable in the pH range 3.0-6.0 and in the presence of several sugars. Some inhibition was observed for high (above 6.0) and low (below 3.0) pH values. Once induced, flocculation could no longer be completely inhibited. Vinho Verde, a typical Portuguese wine, has a relatively low ethanol content and a high acid concentration. The external loop reactor loaded with the flocculant cells was used to deacidify a synthetic medium with sugar and malic acid concentrations similar to the ones found in Vinho Verde grape must. A desirable malic acid decrease with moderate glucose consumption was obtained at a dilution rate of 0.7 h-1. Improved results were obtained when the synthetic medium was replaced by Vinho Verde grape must.SpringerUniversidade do MinhoSousa, Maria JoãoTeixeira, J. A.Mota, M.19931993-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/16839eng0175-759810.1007/BF00228604http://www.springerlink.com/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:38:42ZPortal AgregadorONG
dc.title.none.fl_str_mv Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
title Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
spellingShingle Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
Sousa, Maria João
Schizosaccharomyces pombe
Must deacidification
Science & Technology
title_short Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
title_full Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
title_fullStr Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
title_full_unstemmed Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
title_sort Must deacidification with an induced flocculant yeast strain of Schizosaccharomyces pombe
author Sousa, Maria João
author_facet Sousa, Maria João
Teixeira, J. A.
Mota, M.
author_role author
author2 Teixeira, J. A.
Mota, M.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Sousa, Maria João
Teixeira, J. A.
Mota, M.
dc.subject.por.fl_str_mv Schizosaccharomyces pombe
Must deacidification
Science & Technology
topic Schizosaccharomyces pombe
Must deacidification
Science & Technology
description The use of flocculant cells of the yeast strain SchizosaFcharomyces pombe for the deacidification of grape musts in continuous culture was developed. An external loop reactor was used to induce flocculation. The flocs obtained were stable in the pH range 3.0-6.0 and in the presence of several sugars. Some inhibition was observed for high (above 6.0) and low (below 3.0) pH values. Once induced, flocculation could no longer be completely inhibited. Vinho Verde, a typical Portuguese wine, has a relatively low ethanol content and a high acid concentration. The external loop reactor loaded with the flocculant cells was used to deacidify a synthetic medium with sugar and malic acid concentrations similar to the ones found in Vinho Verde grape must. A desirable malic acid decrease with moderate glucose consumption was obtained at a dilution rate of 0.7 h-1. Improved results were obtained when the synthetic medium was replaced by Vinho Verde grape must.
publishDate 1993
dc.date.none.fl_str_mv 1993
1993-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/16839
url http://hdl.handle.net/1822/16839
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0175-7598
10.1007/BF00228604
http://www.springerlink.com/
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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