Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain

Detalhes bibliográficos
Autor(a) principal: Paulo, Elinalva M.
Data de Publicação: 2012
Outros Autores: Boffo, Elisangela Fabiana, Branco, Alexsandro, Valente, Ângela M. M. P., Melo, Itamar Soares de, Ferreira, Antonio G., Roque, Milton R. A., Assis, Sandra Aparecida de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/15745
Resumo: p. 495-507
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spelling Paulo, Elinalva M.Boffo, Elisangela FabianaBranco, AlexsandroValente, Ângela M. M. P.Melo, Itamar Soares deFerreira, Antonio G.Roque, Milton R. A.Assis, Sandra Aparecida dePaulo, Elinalva M.Boffo, Elisangela FabianaBranco, AlexsandroValente, Ângela M. M. P.Melo, Itamar Soares deFerreira, Antonio G.Roque, Milton R. A.Assis, Sandra Aparecida de2014-09-01T11:50:39Z2014-09-01T11:50:39Z20120001-3765http://repositorio.ufba.br/ri/handle/ri/15745v. 84, n. 2p. 495-507The genus Leuconostoc belongs to a group of lactic acid bacteria usually isolated from fermented vegetables, which includes species involved in the production of exopolysaccharides (EPS). These biopolymers possess considerable commercial potential. Because of the wide variety of industrial applications of EPS, this study aimed to produce and characterize the native exopolysaccharide strain Leuconostoc pseudomesenteroides R2, which was isolated from cabbage collected in a semi-arid region of Bahia. We employed the following conditions for the production of EPS: 10.7% sucrose, pH 8.2, without agitation and incubation at 28ºC for 30 hours. The fermentation broth was treated with ethanol and generated two types of polysaccharide substances (EPS I and EPS II). The identification of EPS I and EPS II was conducted using FT-IR, 1H, 13C and DEPT-135 NMR spectra. The two substances were identified as linear dextran α polysaccharides (1 → 6) which indicated different characteristics with respect to thermal analysis and density of free packaging, viscosity and time of solubilization. Both dextrans are of low density, possess high thermal stability and exhibited the behavior characteristic of pseudoplastic polymers.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-09-01T11:50:38Z No. of bitstreams: 1 Elinalva M. Paulo.pdf: 47432280 bytes, checksum: b8882cad6903d59b1fd1ead132e1c5af (MD5)Made available in DSpace on 2014-09-01T11:50:39Z (GMT). No. of bitstreams: 1 Elinalva M. Paulo.pdf: 47432280 bytes, checksum: b8882cad6903d59b1fd1ead132e1c5af (MD5) Previous issue date: 2012http://dx.doi.org/10.1590/S0001-37652012000200018reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBALeuconostoc pseudomesenteroidesExopolysaccharidePolymerDextranProduction, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strainAnais da Academia Brasileira de Ciênciasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengLICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/15745/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52ORIGINALElinalva M. Paulo.pdfElinalva M. Paulo.pdfapplication/pdf47432280https://repositorio.ufba.br/bitstream/ri/15745/1/Elinalva%20M.%20Paulo.pdfb8882cad6903d59b1fd1ead132e1c5afMD51TEXTElinalva M. Paulo.pdf.txtElinalva M. 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dc.title.pt_BR.fl_str_mv Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
dc.title.alternative.pt_BR.fl_str_mv Anais da Academia Brasileira de Ciências
title Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
spellingShingle Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
Paulo, Elinalva M.
Leuconostoc pseudomesenteroides
Exopolysaccharide
Polymer
Dextran
title_short Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
title_full Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
title_fullStr Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
title_full_unstemmed Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
title_sort Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain
author Paulo, Elinalva M.
author_facet Paulo, Elinalva M.
Boffo, Elisangela Fabiana
Branco, Alexsandro
Valente, Ângela M. M. P.
Melo, Itamar Soares de
Ferreira, Antonio G.
Roque, Milton R. A.
Assis, Sandra Aparecida de
author_role author
author2 Boffo, Elisangela Fabiana
Branco, Alexsandro
Valente, Ângela M. M. P.
Melo, Itamar Soares de
Ferreira, Antonio G.
Roque, Milton R. A.
Assis, Sandra Aparecida de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Paulo, Elinalva M.
Boffo, Elisangela Fabiana
Branco, Alexsandro
Valente, Ângela M. M. P.
Melo, Itamar Soares de
Ferreira, Antonio G.
Roque, Milton R. A.
Assis, Sandra Aparecida de
Paulo, Elinalva M.
Boffo, Elisangela Fabiana
Branco, Alexsandro
Valente, Ângela M. M. P.
Melo, Itamar Soares de
Ferreira, Antonio G.
Roque, Milton R. A.
Assis, Sandra Aparecida de
dc.subject.por.fl_str_mv Leuconostoc pseudomesenteroides
Exopolysaccharide
Polymer
Dextran
topic Leuconostoc pseudomesenteroides
Exopolysaccharide
Polymer
Dextran
description p. 495-507
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2014-09-01T11:50:39Z
dc.date.available.fl_str_mv 2014-09-01T11:50:39Z
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://repositorio.ufba.br/ri/handle/ri/15745
dc.identifier.issn.none.fl_str_mv 0001-3765
dc.identifier.number.pt_BR.fl_str_mv v. 84, n. 2
identifier_str_mv 0001-3765
v. 84, n. 2
url http://repositorio.ufba.br/ri/handle/ri/15745
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S0001-37652012000200018
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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