New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.1007/s13594-015-0229-2 http://www.locus.ufv.br/handle/123456789/12481 |
Resumo: | Propionibacterium freudenreichii is widely used in Swiss-type cheese manufacture, where it contributes to flavour and eye development. It is currently divided into two subspecies, according to the phenotype for lactose fermentation and nitrate reduction (lac+/nit− and lac−/nit+ for P. freudenreichii subsp. shermanii and subsp. freudenreichii, respectively). However, the existence of unclassifiable strains (lac+/nit+ and lac−/nit−) has also been reported. The aim of this study was to revisit the relevance of the subdivision of P. freudenreichii into subspecies, by confirming the existence of unclassifiable strains. Relevant conditions to test the ability of P. freudenreichii for lactose fermentation and nitrate reduction were first determined, by using 10 sequenced strains, in which the presence or absence of the lactose and nitrate genomic islands were known. We also determined whether the subdivision based on lac/nit phenotype was related to other phenotypic properties of interest in cheese manufacture, in this case, the production of aroma compounds, analysed by gas chromatography-mass spectrometry, for a total of 28 strains. The results showed that a too short incubation time can lead to false negative for lactose fermentation and nitrate reduction. They confirmed the existence of four lac/nit phenotypes instead of the two expected, thus leading to 13 unclassifiable strains out of the 28 characterized (7 lac+/nit+ and 6 lac−/nit−). The production of the 15 aroma compounds detected in all cultures varied more within a lac/nit phenotype (up to 20 times) than between them. Taken together, these results demonstrate that the division of P. freudenreichii into two subspecies does not appear to be relevant |
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Freitas, Rosangela deCarvalho, Antonio Fernandes deMadec, Marie-NoelleChuat, VictoriaMaillard, Marie-BernadetteMukdsi, María C. AbeijónFalentin, HélèneValence, FlorenceThierry, Anne2017-10-30T09:59:11Z2017-10-30T09:59:11Z2015-05-0819585594http://dx.doi.org/10.1007/s13594-015-0229-2http://www.locus.ufv.br/handle/123456789/12481Propionibacterium freudenreichii is widely used in Swiss-type cheese manufacture, where it contributes to flavour and eye development. It is currently divided into two subspecies, according to the phenotype for lactose fermentation and nitrate reduction (lac+/nit− and lac−/nit+ for P. freudenreichii subsp. shermanii and subsp. freudenreichii, respectively). However, the existence of unclassifiable strains (lac+/nit+ and lac−/nit−) has also been reported. The aim of this study was to revisit the relevance of the subdivision of P. freudenreichii into subspecies, by confirming the existence of unclassifiable strains. Relevant conditions to test the ability of P. freudenreichii for lactose fermentation and nitrate reduction were first determined, by using 10 sequenced strains, in which the presence or absence of the lactose and nitrate genomic islands were known. We also determined whether the subdivision based on lac/nit phenotype was related to other phenotypic properties of interest in cheese manufacture, in this case, the production of aroma compounds, analysed by gas chromatography-mass spectrometry, for a total of 28 strains. The results showed that a too short incubation time can lead to false negative for lactose fermentation and nitrate reduction. They confirmed the existence of four lac/nit phenotypes instead of the two expected, thus leading to 13 unclassifiable strains out of the 28 characterized (7 lac+/nit+ and 6 lac−/nit−). The production of the 15 aroma compounds detected in all cultures varied more within a lac/nit phenotype (up to 20 times) than between them. Taken together, these results demonstrate that the division of P. freudenreichii into two subspecies does not appear to be relevantengDairy Science & Technology95 (4), p. 465–477, Maio 2015PropionibacteriaSubspeciesBiodiversityVolatile fingerprintFlavour compoundNew insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspeciesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINAL13594_2015_Article_229.pdf13594_2015_Article_229.pdftexto completoapplication/pdf641859https://locus.ufv.br//bitstream/123456789/12481/1/13594_2015_Article_229.pdfe808bff56ba8f27de008d7eb3406b42eMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/12481/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAIL13594_2015_Article_229.pdf.jpg13594_2015_Article_229.pdf.jpgIM Thumbnailimage/jpeg4751https://locus.ufv.br//bitstream/123456789/12481/3/13594_2015_Article_229.pdf.jpgc70f70951b5a9cc392d4529f27cb1095MD53123456789/124812017-10-30 22:00:29.686oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452017-10-31T01:00:29LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
title |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
spellingShingle |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies Freitas, Rosangela de Propionibacteria Subspecies Biodiversity Volatile fingerprint Flavour compound |
title_short |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
title_full |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
title_fullStr |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
title_full_unstemmed |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
title_sort |
New insights about phenotypic heterogeneity within Propionibacterium freudenreichii argue against its division into subspecies |
author |
Freitas, Rosangela de |
author_facet |
Freitas, Rosangela de Carvalho, Antonio Fernandes de Madec, Marie-Noelle Chuat, Victoria Maillard, Marie-Bernadette Mukdsi, María C. Abeijón Falentin, Hélène Valence, Florence Thierry, Anne |
author_role |
author |
author2 |
Carvalho, Antonio Fernandes de Madec, Marie-Noelle Chuat, Victoria Maillard, Marie-Bernadette Mukdsi, María C. Abeijón Falentin, Hélène Valence, Florence Thierry, Anne |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Freitas, Rosangela de Carvalho, Antonio Fernandes de Madec, Marie-Noelle Chuat, Victoria Maillard, Marie-Bernadette Mukdsi, María C. Abeijón Falentin, Hélène Valence, Florence Thierry, Anne |
dc.subject.pt-BR.fl_str_mv |
Propionibacteria Subspecies Biodiversity Volatile fingerprint Flavour compound |
topic |
Propionibacteria Subspecies Biodiversity Volatile fingerprint Flavour compound |
description |
Propionibacterium freudenreichii is widely used in Swiss-type cheese manufacture, where it contributes to flavour and eye development. It is currently divided into two subspecies, according to the phenotype for lactose fermentation and nitrate reduction (lac+/nit− and lac−/nit+ for P. freudenreichii subsp. shermanii and subsp. freudenreichii, respectively). However, the existence of unclassifiable strains (lac+/nit+ and lac−/nit−) has also been reported. The aim of this study was to revisit the relevance of the subdivision of P. freudenreichii into subspecies, by confirming the existence of unclassifiable strains. Relevant conditions to test the ability of P. freudenreichii for lactose fermentation and nitrate reduction were first determined, by using 10 sequenced strains, in which the presence or absence of the lactose and nitrate genomic islands were known. We also determined whether the subdivision based on lac/nit phenotype was related to other phenotypic properties of interest in cheese manufacture, in this case, the production of aroma compounds, analysed by gas chromatography-mass spectrometry, for a total of 28 strains. The results showed that a too short incubation time can lead to false negative for lactose fermentation and nitrate reduction. They confirmed the existence of four lac/nit phenotypes instead of the two expected, thus leading to 13 unclassifiable strains out of the 28 characterized (7 lac+/nit+ and 6 lac−/nit−). The production of the 15 aroma compounds detected in all cultures varied more within a lac/nit phenotype (up to 20 times) than between them. Taken together, these results demonstrate that the division of P. freudenreichii into two subspecies does not appear to be relevant |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-05-08 |
dc.date.accessioned.fl_str_mv |
2017-10-30T09:59:11Z |
dc.date.available.fl_str_mv |
2017-10-30T09:59:11Z |
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://dx.doi.org/10.1007/s13594-015-0229-2 http://www.locus.ufv.br/handle/123456789/12481 |
dc.identifier.issn.none.fl_str_mv |
19585594 |
identifier_str_mv |
19585594 |
url |
http://dx.doi.org/10.1007/s13594-015-0229-2 http://www.locus.ufv.br/handle/123456789/12481 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
95 (4), p. 465–477, Maio 2015 |
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openAccess |
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Dairy Science & Technology |
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Dairy Science & Technology |
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