An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica
Ano de defesa: | 2016 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Pontif?cia Universidade Cat?lica do Rio Grande do Sul
|
Programa de Pós-Graduação: |
Programa de P?s-Gradua??o em Engenharia e Tecnologia de Materiais
|
Departamento: |
Faculdade de Engenharia
|
País: |
Brasil
|
Palavras-chave em Português: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://tede2.pucrs.br/tede2/handle/tede/6620 |
Resumo: | The determination of the contribution of certain constituents to the global odor of a product has been the subject of interest to researchers. It is known that only a small part of the large number of volatile compounds present in a fragrant matrix contributes to the perception of its odor. In addition, these molecules do not contribute equally to the global odor profile of a sample, so a large relative concentration of a compound; do not necessarily correspond to a high intensity odor. Gas chromatography/olfactometry (GC/O) is analytic technic appropriate for studying such issues, since it enables the assessment of odor of each component of complex mixture through specific correlation with the compounds of interest. This is possible because the volatile components of the substances have perceived simultaneously by two detectors, one being the human olfactory system and the other the chromatography detector. The objective of this study is the project, development, implementation and validation of a hybrid equipment (GC/O) to olfatometric analysis and the use of it as tooling for analysis of natural extracts incorporated in different materials. The initial result of the work consisted of the olfactometer own, tested and validated for use in studies associated with this thesis. With the olfactometer, essential oils were analyzed of native species in order to assess the aromatic potential of these extracts and volatile compounds of honey as a way to develop and validate an alternative technique to identification source. With the results referent to the equipment and raw materials, there was made studies on the controlled release of volatile compounds impregnated in textiles by supercritical impregnation, using the gas chromatography/olfactometry as an analytical method. |
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Cassel, Eduardo436.316.060-87http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723188A7835.512.800-10http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4275694T6Xavier, Vanessa Barbieri2016-04-22T12:51:06Z2016-03-21http://tede2.pucrs.br/tede2/handle/tede/6620The determination of the contribution of certain constituents to the global odor of a product has been the subject of interest to researchers. It is known that only a small part of the large number of volatile compounds present in a fragrant matrix contributes to the perception of its odor. In addition, these molecules do not contribute equally to the global odor profile of a sample, so a large relative concentration of a compound; do not necessarily correspond to a high intensity odor. Gas chromatography/olfactometry (GC/O) is analytic technic appropriate for studying such issues, since it enables the assessment of odor of each component of complex mixture through specific correlation with the compounds of interest. This is possible because the volatile components of the substances have perceived simultaneously by two detectors, one being the human olfactory system and the other the chromatography detector. The objective of this study is the project, development, implementation and validation of a hybrid equipment (GC/O) to olfatometric analysis and the use of it as tooling for analysis of natural extracts incorporated in different materials. The initial result of the work consisted of the olfactometer own, tested and validated for use in studies associated with this thesis. With the olfactometer, essential oils were analyzed of native species in order to assess the aromatic potential of these extracts and volatile compounds of honey as a way to develop and validate an alternative technique to identification source. With the results referent to the equipment and raw materials, there was made studies on the controlled release of volatile compounds impregnated in textiles by supercritical impregnation, using the gas chromatography/olfactometry as an analytical method.A determina??o da contribui??o de determinados constituintes para o aroma global de um produto tem sido alvo de interesse de pesquisadores. Sabe-se que apenas uma pequena parte do grande n?mero de compostos vol?teis presentes em uma matriz perfumada contribui para percep??o do seu aroma. Al?m disso, estes compostos n?o contribuem igualmente para o perfil do aroma global da matriz, portanto, uma grande concentra??o relativa de um determinado composto, n?o necessariamente correspondem a intensidades altas de aroma. A cromatografia gasosa/olfatometria (GC/O) ? a t?cnica anal?tica indicada para estudar tais quest?es, pois permite a avalia??o do aroma de cada componente de uma mistura complexa, atrav?s da correla??o espec?fica com os compostos de interesse; isso ? poss?vel porque os componentes vol?teis das subst?ncias s?o percebidos simultaneamente por dois detectores, sendo um deles o sistema olfativo humano e o outro um detector cromatogr?fico. O objetivo deste estudo foi o desenvolvimento, implanta??o e valida??o de um equipamento h?brido (GC/O) para an?lises olfatom?tricas e emprego do mesmo como ferramental de an?lise de extratos naturais incorporados em materiais. Inicialmente, o olfat?metro foi constru?do, testado e validado, para uso em diferentes matrizes. Com o olfat?metro, foram analisados ?leos essenciais de esp?cies nativas como forma de avaliar o potencial arom?tico destes extratos e compostos vol?teis de m?is como forma de propor e validar uma t?cnica alternativa de identifica??o de origem destes produtos. A partir dos resultados referentes ao equipamento e ?s mat?rias primas, realizou-se estudos sobre a libera??o controlada de compostos vol?teis impregnados em tecidos pela impregna??o supercr?tica, tendo como m?todo de an?lise a cromatografia gasosa/olfatometria.Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2016-04-22T12:51:06Z No. of bitstreams: 1 TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf: 4214220 bytes, checksum: c994d11e326960f203b011fc18fb6a33 (MD5)Made available in DSpace on 2016-04-22T12:51:06Z (GMT). No. of bitstreams: 1 TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf: 4214220 bytes, checksum: c994d11e326960f203b011fc18fb6a33 (MD5) Previous issue date: 2016-03-21Funda??o de Amparo ? Pesquisa do Estado do Rio Grande do Sul - FAPERGSapplication/pdfhttp://tede2.pucrs.br:80/tede2/retrieve/164625/TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.jpgporPontif?cia Universidade Cat?lica do Rio Grande do SulPrograma de P?s-Gradua??o em Engenharia e Tecnologia de MateriaisPUCRSBrasilFaculdade de EngenhariaAROMASCROMATOGRAFIAFLU?DOS SUPERCR?TICOQU?MICA INDUSTRIALENGENHARIA DE MATERIAISENGENHARIASAn?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?ticainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-7432719344215120122600600600600-6557705727614397854518971056484826825-3614735573891122254info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da PUC_RSinstname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSTHUMBNAILTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.jpgTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.jpgimage/jpeg4376http://tede2.pucrs.br/tede2/bitstream/tede/6620/4/TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.jpg0283041e856d935adac8a3ec21e2a156MD54TEXTTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.txtTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.txttext/plain240345http://tede2.pucrs.br/tede2/bitstream/tede/6620/3/TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdf.txt68e2a6a9a17a37174fb6c4fa56505111MD53ORIGINALTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdfTES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdfapplication/pdf4214220http://tede2.pucrs.br/tede2/bitstream/tede/6620/2/TES_VANESSA_BARBIERI_XAVIER_COMPLETO.pdfc994d11e326960f203b011fc18fb6a33MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-8610http://tede2.pucrs.br/tede2/bitstream/tede/6620/1/license.txt5a9d6006225b368ef605ba16b4f6d1beMD51tede/66202016-04-22 12:00:43.99oai:tede2.pucrs.br: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Biblioteca Digital de Teses e Dissertaçõeshttp://tede2.pucrs.br/tede2/PRIhttps://tede2.pucrs.br/oai/requestbiblioteca.central@pucrs.br||opendoar:2016-04-22T15:00:43Biblioteca Digital de Teses e Dissertações da PUC_RS - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.por.fl_str_mv |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
title |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
spellingShingle |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica Xavier, Vanessa Barbieri AROMAS CROMATOGRAFIA FLU?DOS SUPERCR?TICO QU?MICA INDUSTRIAL ENGENHARIA DE MATERIAIS ENGENHARIAS |
title_short |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
title_full |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
title_fullStr |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
title_full_unstemmed |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
title_sort |
An?lise cromatogr?fica/olfatom?trica do potencial arom?tico de extratos naturais livres e incorporados a materiais pela impregna??o supercr?tica |
author |
Xavier, Vanessa Barbieri |
author_facet |
Xavier, Vanessa Barbieri |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Cassel, Eduardo |
dc.contributor.advisor1ID.fl_str_mv |
436.316.060-87 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723188A7 |
dc.contributor.authorID.fl_str_mv |
835.512.800-10 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4275694T6 |
dc.contributor.author.fl_str_mv |
Xavier, Vanessa Barbieri |
contributor_str_mv |
Cassel, Eduardo |
dc.subject.por.fl_str_mv |
AROMAS CROMATOGRAFIA FLU?DOS SUPERCR?TICO QU?MICA INDUSTRIAL ENGENHARIA DE MATERIAIS |
topic |
AROMAS CROMATOGRAFIA FLU?DOS SUPERCR?TICO QU?MICA INDUSTRIAL ENGENHARIA DE MATERIAIS ENGENHARIAS |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS |
description |
The determination of the contribution of certain constituents to the global odor of a product has been the subject of interest to researchers. It is known that only a small part of the large number of volatile compounds present in a fragrant matrix contributes to the perception of its odor. In addition, these molecules do not contribute equally to the global odor profile of a sample, so a large relative concentration of a compound; do not necessarily correspond to a high intensity odor. Gas chromatography/olfactometry (GC/O) is analytic technic appropriate for studying such issues, since it enables the assessment of odor of each component of complex mixture through specific correlation with the compounds of interest. This is possible because the volatile components of the substances have perceived simultaneously by two detectors, one being the human olfactory system and the other the chromatography detector. The objective of this study is the project, development, implementation and validation of a hybrid equipment (GC/O) to olfatometric analysis and the use of it as tooling for analysis of natural extracts incorporated in different materials. The initial result of the work consisted of the olfactometer own, tested and validated for use in studies associated with this thesis. With the olfactometer, essential oils were analyzed of native species in order to assess the aromatic potential of these extracts and volatile compounds of honey as a way to develop and validate an alternative technique to identification source. With the results referent to the equipment and raw materials, there was made studies on the controlled release of volatile compounds impregnated in textiles by supercritical impregnation, using the gas chromatography/olfactometry as an analytical method. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-04-22T12:51:06Z |
dc.date.issued.fl_str_mv |
2016-03-21 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
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http://tede2.pucrs.br/tede2/handle/tede/6620 |
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http://tede2.pucrs.br/tede2/handle/tede/6620 |
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por |
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por |
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-7432719344215120122 |
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600 600 600 600 |
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4518971056484826825 |
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info:eu-repo/semantics/openAccess |
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Pontif?cia Universidade Cat?lica do Rio Grande do Sul |
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Programa de P?s-Gradua??o em Engenharia e Tecnologia de Materiais |
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PUCRS |
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Brasil |
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Faculdade de Engenharia |
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Pontif?cia Universidade Cat?lica do Rio Grande do Sul |
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