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, Maria do Carmo Hespanhol da, Bonomo, Renata Cristina Ferreira, Silva, Luís Henrique Mendes da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
Texto Completo: http://www.repositorio.ufop.br/handle/123456789/1619
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 organicsalt (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.
id UFOP_d4e4d55eeae73cec06ae5fcc068953a4
oai_identifier_str oai:localhost:123456789/1619
network_acronym_str UFOP
network_name_str Repositório Institucional da UFOP
repository_id_str 3233
spelling Mageste, Aparecida BarbosaSenra, Tonimar Domiciano ArrighiSilva, Maria do Carmo Hespanhol daBonomo, Renata Cristina FerreiraSilva, Luís Henrique Mendes da2012-10-11T13:49:33Z2012-10-11T13:49:33Z2012MAGESTE, A. B. et al. Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts. Separation and Purification Technology, v. 98, p. 69-77, set. 2012. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1383586612003310>. Acesso em: 11 out. 2012.13835866http://www.repositorio.ufop.br/handle/123456789/1619Partitioning 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 organicsalt (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.PurificationGreen chemistryPartitionAqueous two-phase systemsThermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Separation and Purification Technology concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3577170147394.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://www.repositorio.ufop.br/bitstream/123456789/1619/5/license.txt8a4605be74aa9ea9d79846c1fba20a33MD55ORIGINALARTIGO_ThermodynamicsOptimizationNorbixin.pdfARTIGO_ThermodynamicsOptimizationNorbixin.pdfapplication/pdf837720http://www.repositorio.ufop.br/bitstream/123456789/1619/1/ARTIGO_ThermodynamicsOptimizationNorbixin.pdf1ba37dc8714c100ea28b656cfabdf250MD51123456789/16192019-03-11 14:17:41.523oai:localhost:123456789/1619Tk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-03-11T18:17:41Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.pt_BR.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
Purification
Green chemistry
Partition
Aqueous two-phase systems
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, Maria do Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luís Henrique Mendes da
author_role author
author2 Senra, Tonimar Domiciano Arrighi
Silva, Maria do Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luís Henrique Mendes da
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Mageste, Aparecida Barbosa
Senra, Tonimar Domiciano Arrighi
Silva, Maria do Carmo Hespanhol da
Bonomo, Renata Cristina Ferreira
Silva, Luís Henrique Mendes da
dc.subject.por.fl_str_mv Purification
Green chemistry
Partition
Aqueous two-phase systems
topic Purification
Green chemistry
Partition
Aqueous two-phase systems
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 organicsalt (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.accessioned.fl_str_mv 2012-10-11T13:49:33Z
dc.date.available.fl_str_mv 2012-10-11T13:49:33Z
dc.date.issued.fl_str_mv 2012
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.citation.fl_str_mv MAGESTE, A. B. et al. Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts. Separation and Purification Technology, v. 98, p. 69-77, set. 2012. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1383586612003310>. Acesso em: 11 out. 2012.
dc.identifier.uri.fl_str_mv http://www.repositorio.ufop.br/handle/123456789/1619
dc.identifier.issn.none.fl_str_mv 13835866
identifier_str_mv MAGESTE, A. B. et al. Thermodynamics and optimization of norbixin transfer processes in aqueous biphasic systems formed by polymers and organic salts. Separation and Purification Technology, v. 98, p. 69-77, set. 2012. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1383586612003310>. Acesso em: 11 out. 2012.
13835866
url http://www.repositorio.ufop.br/handle/123456789/1619
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.source.none.fl_str_mv reponame:Repositório Institucional da UFOP
instname:Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
instname_str Universidade Federal de Ouro Preto (UFOP)
instacron_str UFOP
institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
bitstream.url.fl_str_mv http://www.repositorio.ufop.br/bitstream/123456789/1619/5/license.txt
http://www.repositorio.ufop.br/bitstream/123456789/1619/1/ARTIGO_ThermodynamicsOptimizationNorbixin.pdf
bitstream.checksum.fl_str_mv 8a4605be74aa9ea9d79846c1fba20a33
1ba37dc8714c100ea28b656cfabdf250
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)
repository.mail.fl_str_mv repositorio@ufop.edu.br
_version_ 1801685708036898816

Registros relacionados