Supercritical CO2 extraction of essential oils from Thymus vulgaris

Detalhes bibliográficos
Autor(a) principal: Melo, Silvio Alexandre Beisl Vieira de
Data de Publicação: 2000
Outros Autores: Costa, Glória Meyberg Nunes, Garau, R., Casula, A., Pittau, B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7063
Resumo: Supercritical CO2 extraction of essential oil from Thymus vulgaris leaves was studied using experimental data recently obtained in the Florys S.p.A. laboratory. Mass transfer coefficients in the supercritical and solid phases from extraction curves at 40°C and 20 MPa were evaluated using a mathematical model based on the local adsorption equilibrium of essential oil on lipid in leaves. The adsorption equilibrium constant was fitted to these experimental data, and internal and external mass transfer resistances were calculated, allowing identification of the mechanism controlling the extraction process.
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spelling Melo, Silvio Alexandre Beisl Vieira deCosta, Glória Meyberg NunesGarau, R.Casula, A.Pittau, B.Melo, Silvio Alexandre Beisl Vieira deCosta, Glória Meyberg NunesGarau, R.Casula, A.Pittau, B.2012-10-26T19:53:40Z2012-10-26T19:53:40Z2000-090104-6632http://www.repositorio.ufba.br/ri/handle/ri/7063v. 17, n. 3Supercritical CO2 extraction of essential oil from Thymus vulgaris leaves was studied using experimental data recently obtained in the Florys S.p.A. laboratory. Mass transfer coefficients in the supercritical and solid phases from extraction curves at 40°C and 20 MPa were evaluated using a mathematical model based on the local adsorption equilibrium of essential oil on lipid in leaves. The adsorption equilibrium constant was fitted to these experimental data, and internal and external mass transfer resistances were calculated, allowing identification of the mechanism controlling the extraction process.Submitted by Texeira Ana (atanateixeira@gmail.com) on 2012-10-26T19:53:40Z No. of bitstreams: 1 Melo, S.A.B..pdf: 119977 bytes, checksum: 2be0860c7b8fb5848a2c2567f1ab3fcd (MD5)Made available in DSpace on 2012-10-26T19:53:40Z (GMT). No. of bitstreams: 1 Melo, S.A.B..pdf: 119977 bytes, checksum: 2be0860c7b8fb5848a2c2567f1ab3fcd (MD5) Previous issue date: 2000-09São PauloAssociação Brasileira de Engenharia Químicahttp://dx.doi.org/10.1590/S0104-66322000000300014reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAMathematical modelingSupercritical CO2 extractionEssential oilsThymus vulgarisSupercritical CO2 extraction of essential oils from Thymus vulgarisBrazilian Journal of Chemical Engineeringinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALMelo, S.A.B..pdfMelo, S.A.B..pdfapplication/pdf119977https://repositorio.ufba.br/bitstream/ri/7063/1/Melo%2c%20S.A.B..pdf2be0860c7b8fb5848a2c2567f1ab3fcdMD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/7063/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXTMelo, S.A.B..pdf.txtMelo, S.A.B..pdf.txtExtracted texttext/plain14274https://repositorio.ufba.br/bitstream/ri/7063/3/Melo%2c%20S.A.B..pdf.txtfd2992352251cbe88d195edfa831ad9fMD53ri/70632022-07-05 14:03:50.982oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:50Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Supercritical CO2 extraction of essential oils from Thymus vulgaris
dc.title.alternative.pt_BR.fl_str_mv Brazilian Journal of Chemical Engineering
title Supercritical CO2 extraction of essential oils from Thymus vulgaris
spellingShingle Supercritical CO2 extraction of essential oils from Thymus vulgaris
Melo, Silvio Alexandre Beisl Vieira de
Mathematical modeling
Supercritical CO2 extraction
Essential oils
Thymus vulgaris
title_short Supercritical CO2 extraction of essential oils from Thymus vulgaris
title_full Supercritical CO2 extraction of essential oils from Thymus vulgaris
title_fullStr Supercritical CO2 extraction of essential oils from Thymus vulgaris
title_full_unstemmed Supercritical CO2 extraction of essential oils from Thymus vulgaris
title_sort Supercritical CO2 extraction of essential oils from Thymus vulgaris
author Melo, Silvio Alexandre Beisl Vieira de
author_facet Melo, Silvio Alexandre Beisl Vieira de
Costa, Glória Meyberg Nunes
Garau, R.
Casula, A.
Pittau, B.
author_role author
author2 Costa, Glória Meyberg Nunes
Garau, R.
Casula, A.
Pittau, B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Melo, Silvio Alexandre Beisl Vieira de
Costa, Glória Meyberg Nunes
Garau, R.
Casula, A.
Pittau, B.
Melo, Silvio Alexandre Beisl Vieira de
Costa, Glória Meyberg Nunes
Garau, R.
Casula, A.
Pittau, B.
dc.subject.por.fl_str_mv Mathematical modeling
Supercritical CO2 extraction
Essential oils
Thymus vulgaris
topic Mathematical modeling
Supercritical CO2 extraction
Essential oils
Thymus vulgaris
description Supercritical CO2 extraction of essential oil from Thymus vulgaris leaves was studied using experimental data recently obtained in the Florys S.p.A. laboratory. Mass transfer coefficients in the supercritical and solid phases from extraction curves at 40°C and 20 MPa were evaluated using a mathematical model based on the local adsorption equilibrium of essential oil on lipid in leaves. The adsorption equilibrium constant was fitted to these experimental data, and internal and external mass transfer resistances were calculated, allowing identification of the mechanism controlling the extraction process.
publishDate 2000
dc.date.issued.fl_str_mv 2000-09
dc.date.accessioned.fl_str_mv 2012-10-26T19:53:40Z
dc.date.available.fl_str_mv 2012-10-26T19:53:40Z
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://www.repositorio.ufba.br/ri/handle/ri/7063
dc.identifier.issn.none.fl_str_mv 0104-6632
dc.identifier.number.pt_BR.fl_str_mv v. 17, n. 3
identifier_str_mv 0104-6632
v. 17, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/7063
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.none.fl_str_mv Associação Brasileira de Engenharia Química
publisher.none.fl_str_mv Associação Brasileira de Engenharia Química
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S0104-66322000000300014
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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