Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts

Detalhes bibliográficos
Autor(a) principal: Mageste, Aparecida Barbosa
Data de Publicação: 2012
Outros Autores: Senra, Tonimar Domiciano Arrighi, Silva, M. Carmo Hespanhol da, Bonomo, Renata Cristina Ferreira, Silva, Luis Henrique Mendes da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: https://doi.org/10.1016/j.seppur.2012.06.012
http://www.locus.ufv.br/handle/123456789/21494
Resumo: Partitioning of the natural dye norbixin has been studied in aqueous two-phase system (ATPS) that are formed by mixing aqueous solutions of a polymer (or copolymer) and an organic salt (sodium tartrate or succinate). In this work, the norbixin partition coefficient (KN) was optimized, taking into account the variables of polymer concentration, salt concentration and pH. It was found that KN is highly dependent on the electrolyte nature, system hydrophobicity and TLL values. Testing produced KN values between 8 and 130, indicating the great potential of ATPS as a method for norbixin pre-concentration/purification. Thermodynamic transfer parameters (ΔtrG, ΔtrH, ΔtrS) indicate that the preferential concentration of norbixin in the top phase is favored by enthalpic and entropic contributions.
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spelling Mageste, Aparecida BarbosaSenra, Tonimar Domiciano ArrighiSilva, M. Carmo Hespanhol daBonomo, Renata Cristina FerreiraSilva, Luis Henrique Mendes da2018-08-29T11:03:49Z2018-08-29T11:03:49Z2012-09-1913835866https://doi.org/10.1016/j.seppur.2012.06.012http://www.locus.ufv.br/handle/123456789/21494Partitioning of the natural dye norbixin has been studied in aqueous two-phase system (ATPS) that are formed by mixing aqueous solutions of a polymer (or copolymer) and an organic salt (sodium tartrate or succinate). In this work, the norbixin partition coefficient (KN) was optimized, taking into account the variables of polymer concentration, salt concentration and pH. It was found that KN is highly dependent on the electrolyte nature, system hydrophobicity and TLL values. Testing produced KN values between 8 and 130, indicating the great potential of ATPS as a method for norbixin pre-concentration/purification. Thermodynamic transfer parameters (ΔtrG, ΔtrH, ΔtrS) indicate that the preferential concentration of norbixin in the top phase is favored by enthalpic and entropic contributions.engSeparation and Purification Technologyv. 98, p. 69- 77, set. 2012Elsevier B.V.info:eu-repo/semantics/openAccessAqueous two-phase systemsNorbixinPurificationPartitionGreen chemistryThermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic saltsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf868095https://locus.ufv.br//bitstream/123456789/21494/1/artigo.pdffd51672489cca562184e3ebfbbd7b509MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/21494/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg5472https://locus.ufv.br//bitstream/123456789/21494/3/artigo.pdf.jpgb5ac48c56c0b67ebd87361a8bb5e7be0MD53123456789/214942018-08-29 23:00:46.589oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-08-30T02:00:46LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
title Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
spellingShingle Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
Mageste, Aparecida Barbosa
Aqueous two-phase systems
Norbixin
Purification
Partition
Green chemistry
title_short Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
title_full Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
title_fullStr Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
title_full_unstemmed Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
title_sort Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts
author Mageste, Aparecida Barbosa
author_facet Mageste, Aparecida Barbosa
Senra, Tonimar Domiciano Arrighi
Silva, M. Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luis Henrique Mendes da
author_role author
author2 Senra, Tonimar Domiciano Arrighi
Silva, M. Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luis Henrique Mendes da
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Mageste, Aparecida Barbosa
Senra, Tonimar Domiciano Arrighi
Silva, M. Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luis Henrique Mendes da
dc.subject.pt-BR.fl_str_mv Aqueous two-phase systems
Norbixin
Purification
Partition
Green chemistry
topic Aqueous two-phase systems
Norbixin
Purification
Partition
Green chemistry
description Partitioning of the natural dye norbixin has been studied in aqueous two-phase system (ATPS) that are formed by mixing aqueous solutions of a polymer (or copolymer) and an organic salt (sodium tartrate or succinate). In this work, the norbixin partition coefficient (KN) was optimized, taking into account the variables of polymer concentration, salt concentration and pH. It was found that KN is highly dependent on the electrolyte nature, system hydrophobicity and TLL values. Testing produced KN values between 8 and 130, indicating the great potential of ATPS as a method for norbixin pre-concentration/purification. Thermodynamic transfer parameters (ΔtrG, ΔtrH, ΔtrS) indicate that the preferential concentration of norbixin in the top phase is favored by enthalpic and entropic contributions.
publishDate 2012
dc.date.issued.fl_str_mv 2012-09-19
dc.date.accessioned.fl_str_mv 2018-08-29T11:03:49Z
dc.date.available.fl_str_mv 2018-08-29T11:03:49Z
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 https://doi.org/10.1016/j.seppur.2012.06.012
http://www.locus.ufv.br/handle/123456789/21494
dc.identifier.issn.none.fl_str_mv 13835866
identifier_str_mv 13835866
url https://doi.org/10.1016/j.seppur.2012.06.012
http://www.locus.ufv.br/handle/123456789/21494
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 98, p. 69- 77, set. 2012
dc.rights.driver.fl_str_mv Elsevier B.V.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Elsevier B.V.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Separation and Purification Technology
publisher.none.fl_str_mv Separation and Purification Technology
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
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