Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFPA |
Texto Completo: | http://repositorio.ufpa.br/jspui/handle/2011/5286 |
Resumo: | The pupunha (Guilielma speciosa) is the fruit of a palm tree typical of the Brazilian Northern region, whose stem is used as a source of heart of palm. The fruit, which is about 65% pulp, is a source of oil and carotenes. In the present work, an analysis of the kinetics of supercritical extraction of oil from the pupunha pulp is presented. Carbon dioxide was used as solvent. The extractions were carried out at 25 MPa and 323 K and 30 MPa and 318 K. The chemical composition of the extracts in terms of fatty acids was determined by gas chromatography. The amount of oleic acid, a saturated fatty acid, in the CO2 extracts was larger than that in the extract obtained with hexane. The overall extraction curves were modeled using the single-parameter model proposed in the literature to describe the desorption of toluene from activated coal. |
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2014-07-09T12:18:10Z2014-07-09T12:18:10Z2000-09ARAUJO, M.E. et al. Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide. Brazilian Journal of Chemical Engineering, São Paulo, v. 17, n. 3, p. 297-306, set. 2000. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300005&lng=pt&nrm=iso>. Acesso em: 18 fev. 2014. <http://dx.doi.org/10.1590/S0104-66322000000300005>.0104-6632http://repositorio.ufpa.br/jspui/handle/2011/5286The pupunha (Guilielma speciosa) is the fruit of a palm tree typical of the Brazilian Northern region, whose stem is used as a source of heart of palm. The fruit, which is about 65% pulp, is a source of oil and carotenes. In the present work, an analysis of the kinetics of supercritical extraction of oil from the pupunha pulp is presented. Carbon dioxide was used as solvent. The extractions were carried out at 25 MPa and 323 K and 30 MPa and 318 K. The chemical composition of the extracts in terms of fatty acids was determined by gas chromatography. The amount of oleic acid, a saturated fatty acid, in the CO2 extracts was larger than that in the extract obtained with hexane. The overall extraction curves were modeled using the single-parameter model proposed in the literature to describe the desorption of toluene from activated coal.engPupunhaExtração com fluído supercríticoExtração supercríticaÓleo de pupunhaCarotenesModelagem da curva de extraçãoGuilielma speciosaSupercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxideinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleARAÚJO, Marilena EmmiMACHADO, Nélio Teixeira deFRANÇA, Luiz Ferreira deMEIRELES, Maria Angela de Almeidainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFPAinstname:Universidade Federal do Pará (UFPA)instacron:UFPAORIGINALArtigo_SupercriticalExtractionPupunha.pdfArtigo_SupercriticalExtractionPupunha.pdfapplication/pdf460392http://repositorio.ufpa.br/oai/bitstream/2011/5286/1/Artigo_SupercriticalExtractionPupunha.pdf5621e9ef4772fa4ff2b2ecbefded57a8MD51CC-LICENSElicense_urllicense_urltext/plain; charset=utf-849http://repositorio.ufpa.br/oai/bitstream/2011/5286/2/license_url4afdbb8c545fd630ea7db775da747b2fMD52license_textlicense_texttext/html; charset=utf-821936http://repositorio.ufpa.br/oai/bitstream/2011/5286/3/license_text9833653f73f7853880c94a6fead477b1MD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-823148http://repositorio.ufpa.br/oai/bitstream/2011/5286/4/license_rdf9da0b6dfac957114c6a7714714b86306MD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81775http://repositorio.ufpa.br/oai/bitstream/2011/5286/5/license.txta930293e49ae6e6b5c49a341d4a36286MD55TEXTArtigo_SupercriticalExtractionPupunha.pdf.txtArtigo_SupercriticalExtractionPupunha.pdf.txtExtracted texttext/plain24964http://repositorio.ufpa.br/oai/bitstream/2011/5286/6/Artigo_SupercriticalExtractionPupunha.pdf.txt51c879990a8e57d08e3a39d785013ae2MD562011/52862018-04-03 16:30:15.547oai:repositorio.ufpa.br:2011/5286TGljZW7Dp2EgZGUgZGlzdHJpYnVpw6fDo28gbsOjbyBleGNsdXNpdmEKCkFvIGFzc2luYXIgZSBlbnRyZWdhciBlc3RhIGxpY2Vuw6dhLCB2b2PDqiBvKHMpIGF1dG9yIChlcykgb3UgcHJvcHJpZXTDoXJpbyhzKSBkb3MgZGlyZWl0b3MgYXV0b3JhaXMsICBjb25jZWRlIGEgVW5pdmVyc2lkYWRlIEZlZGVyYWwgZG8gUGFyw6EgLSBVRlBBLCBvIGRpcmVpdG8gbsOjbyBleGNsdXNpdm8gZGUgcmVwcm9kdXppciwgdHJhZHV6aXIgKGNvbW8gZGVmaW5pZG8gYWJhaXhvKSwgZS9vdSBkaXN0cmlidWlyIHN1YSBzdWJtaXNzw6NvIChpbmNsdWluZG8gbyByZXN1bW8pIGVtIHRvZG8gbyBtdW5kbywgZW0gZm9ybWF0byBpbXByZXNzbyBlIGVsZXRyw7RuaWNvIGUgZW0gcXVhbHF1ZXIgbWVpbywgaW5jbHVpbmRvLCBtYXMgbsOjbyBsaW1pdGFkbywgYSDDoXVkaW8gb3UgdsOtZGVvLgoKVm9jw6ogY29uY29yZGEgcXVlIGEgVUZQQSBwb2RlLCBzZW0gYWx0ZXJhciBvIGNvbnRlw7pkbywgdHJhZHV6aXIgYSBzdWJtaXNzw6NvIGEgcXVhbHF1ZXIgbWVpbyBvdSBmb3JtYXRvIHBhcmEgbyBwcm9ww7NzaXRvIGRlIHByZXNlcnZhw6fDo28uCgpWb2PDqiB0YW1iw6ltIGNvbmNvcmRhIHF1ZSBVRlBBIHBvZGUgbWFudGVyIG1haXMgZGUgdW1hIGPDs3BpYSBkZXNzYSBzdWJtaXNzw6NvIHBhcmEgZmlucyBkZSBzZWd1cmFuw6dhLCBiYWNrLXVwIGUgcHJlc2VydmHDp8Ojby4KClZvY8OqIGRlY2xhcmEgcXVlIGEgYXByZXNlbnRhw6fDo28gw6kgbyBzZXUgdHJhYmFsaG8gb3JpZ2luYWwsIGUgcXVlIHZvY8OqIHRlbSBvIGRpcmVpdG8gZGUgY29uY2VkZXIgb3MgZGlyZWl0b3MgY29udGlkb3MgbmVzdGEgbGljZW7Dp2EuIFZvY8OqIHRhbWLDqW0gZGVjbGFyYSBxdWUgc3VhIHN1Ym1pc3PDo28sIGFvIHNldSBjb25oZWNpbWVudG8sIG7Do28gaW5mcmluZ2Ugb3MgZGlyZWl0b3MgYXV0b3JhaXMgZGUgYWxndcOpbS4KClNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIGNvbnTDqW0gbWF0ZXJpYWwgcGFyYSBvIHF1YWwgdm9jw6ogbsOjbyB0ZW0gZGlyZWl0b3MgYXV0b3JhaXMsIFZvY8OqIGRlY2xhcmEgcXVlIG9idGV2ZSBhIHBlcm1pc3PDo28gaXJyZXN0cml0YSBkbyBwcm9wcmlldMOhcmlvIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBwYXJhIGNvbmNlZGVyIGEgVUZQQSBvcyBkaXJlaXRvcyByZXF1ZXJpZG9zIHBvciBlc3RhIGxpY2Vuw6dhLCBlIHF1ZSBtYXRlcmlhaXMgZGUgdGVyY2Vpcm9zIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcmVjb25oZWNpZG8gbm8gdGV4dG8gb3UgY29udGXDumRvIGRhIGFwcmVzZW50YcOnw6NvLgoKU2UgYSBzdWJtaXNzw6NvIMOpIGJhc2VhZGEgbm8gdHJhYmFsaG8gcXVlIHRlbSBzaWRvIHBhdHJvY2luYWRvIG91IGFwb2lhZG8gcG9yIHVtIMOzcmfDo28gb3Ugb3V0cmEgb3JnYW5pemHDp8OjbyBxdWUgbsOjbyBzZWphIGEgVUZQQSwgdm9jw6ogZGVjbGFyYSB0ZXIgY3VtcHJpZG8gcXVhbHF1ZXIgZGlyZWl0byBkZSByZXZpc8OjbyBvdSBvdXRyYXMgb2JyaWdhw6fDg8K1ZXMgcmVxdWVyaWRhcyBwZWxvIGNvbnRyYXRvIG91IGFjb3Jkby4KCkEgVUZQQSBpcsOhIGlkZW50aWZpY2FyIGNsYXJhbWVudGUgbyhzKSBzZXUocykgbm9tZShzKSBjb21vIG8ocykgYXV0b3IgKGVzKSBvdSBwcm9wcmlldMOhcmlvKHMpIGRhIHN1Ym1pc3PDo28sIGUgbsOjbyBmYXLDoSBxdWFscXVlciBhbHRlcmHDp8OjbywgYWzDqW0gZGFzIHBlcm1pdGlkYXMgcG9yIGVzdGEgbGljZW7Dp2EsIGEgc3VhIHN1Ym1pc3PDo28uCgo=Repositório InstitucionalPUBhttp://repositorio.ufpa.br/oai/requestriufpabc@ufpa.bropendoar:21232018-04-03T19:30:15Repositório Institucional da UFPA - Universidade Federal do Pará (UFPA)false |
dc.title.pt_BR.fl_str_mv |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
title |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
spellingShingle |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide ARAÚJO, Marilena Emmi Pupunha Extração com fluído supercrítico Extração supercrítica Óleo de pupunha Carotenes Modelagem da curva de extração Guilielma speciosa |
title_short |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
title_full |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
title_fullStr |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
title_full_unstemmed |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
title_sort |
Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide |
author |
ARAÚJO, Marilena Emmi |
author_facet |
ARAÚJO, Marilena Emmi MACHADO, Nélio Teixeira de FRANÇA, Luiz Ferreira de MEIRELES, Maria Angela de Almeida |
author_role |
author |
author2 |
MACHADO, Nélio Teixeira de FRANÇA, Luiz Ferreira de MEIRELES, Maria Angela de Almeida |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
ARAÚJO, Marilena Emmi MACHADO, Nélio Teixeira de FRANÇA, Luiz Ferreira de MEIRELES, Maria Angela de Almeida |
dc.subject.por.fl_str_mv |
Pupunha Extração com fluído supercrítico Extração supercrítica Óleo de pupunha Carotenes Modelagem da curva de extração Guilielma speciosa |
topic |
Pupunha Extração com fluído supercrítico Extração supercrítica Óleo de pupunha Carotenes Modelagem da curva de extração Guilielma speciosa |
description |
The pupunha (Guilielma speciosa) is the fruit of a palm tree typical of the Brazilian Northern region, whose stem is used as a source of heart of palm. The fruit, which is about 65% pulp, is a source of oil and carotenes. In the present work, an analysis of the kinetics of supercritical extraction of oil from the pupunha pulp is presented. Carbon dioxide was used as solvent. The extractions were carried out at 25 MPa and 323 K and 30 MPa and 318 K. The chemical composition of the extracts in terms of fatty acids was determined by gas chromatography. The amount of oleic acid, a saturated fatty acid, in the CO2 extracts was larger than that in the extract obtained with hexane. The overall extraction curves were modeled using the single-parameter model proposed in the literature to describe the desorption of toluene from activated coal. |
publishDate |
2000 |
dc.date.issued.fl_str_mv |
2000-09 |
dc.date.accessioned.fl_str_mv |
2014-07-09T12:18:10Z |
dc.date.available.fl_str_mv |
2014-07-09T12:18:10Z |
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 |
ARAUJO, M.E. et al. Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide. Brazilian Journal of Chemical Engineering, São Paulo, v. 17, n. 3, p. 297-306, set. 2000. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300005&lng=pt&nrm=iso>. Acesso em: 18 fev. 2014. <http://dx.doi.org/10.1590/S0104-66322000000300005>. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufpa.br/jspui/handle/2011/5286 |
dc.identifier.issn.none.fl_str_mv |
0104-6632 |
identifier_str_mv |
ARAUJO, M.E. et al. Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide. Brazilian Journal of Chemical Engineering, São Paulo, v. 17, n. 3, p. 297-306, set. 2000. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300005&lng=pt&nrm=iso>. Acesso em: 18 fev. 2014. <http://dx.doi.org/10.1590/S0104-66322000000300005>. 0104-6632 |
url |
http://repositorio.ufpa.br/jspui/handle/2011/5286 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Repositório Institucional da UFPA |
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