Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe

Detalhes bibliográficos
Autor(a) principal: Santana, Valéria Santos
Data de Publicação: 2011
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFS
Texto Completo: https://ri.ufs.br/handle/riufs/6164
Resumo: This paper reports the study of composition and variation of the chemical components of essential oils of Croton species of Sergipe emphasizing its importance chemotaxonomy. Essential oils from fresh aerial parts obtnained by hydrodistillation from samples of Croton blanchetianus (CB-GA), C. campestris (CC-AML), C. heliotropiifolius collected at different locations in the Sergipe (CH-SG1, CH-SG2, CH-GA, and CH-AML), C. pedicellatus (CP-SI), C. tetradenius (CT-SG) and seven other unidentified taxa, called CSP1-CPS7, were analyzed by GC-MS and GC-FID, such analysis revealed a highly variable chemical composition. It were identified 131 components by comparing the retention indices and mass spectra of compounds with literature data and NIST and Willey mass spectra libraries. With the chemical analysis of oil of Croton were established correlations between the taxa of C. heliotropiifolius, which can be differentiated by using their main chemical markers: (E)-caryophyllene and bicyclogermacrene. For comparative analysis of the chemical composition of essential oils of Croton species, chemometric tools as Principal Component Analysis (PCA) and hierarchic Cluster Analysis (HCA) was applied, by which it was possible to differentiate the components of the essential oil of aerial parts of Croton species grouped by class of compounds according to their biosynthetic origin (monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes, phenylpropanoids and derivatives of fatty acids). With this analysis it was possible to form three groups (I, II and III), corroborating the comparative analysis of chromatographic profiles. To our knowledge, this is the first report on the chemical composition of essential oils of C. pedicellatus and C. tetradenius.
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spelling Santana, Valéria Santoshttp://lattes.cnpq.br/7943088143954973Nogueira, Paulo Cesar de Limahttp://lattes.cnpq.br/78057574372597662017-09-27T13:58:16Z2017-09-27T13:58:16Z2011-10-24https://ri.ufs.br/handle/riufs/6164This paper reports the study of composition and variation of the chemical components of essential oils of Croton species of Sergipe emphasizing its importance chemotaxonomy. Essential oils from fresh aerial parts obtnained by hydrodistillation from samples of Croton blanchetianus (CB-GA), C. campestris (CC-AML), C. heliotropiifolius collected at different locations in the Sergipe (CH-SG1, CH-SG2, CH-GA, and CH-AML), C. pedicellatus (CP-SI), C. tetradenius (CT-SG) and seven other unidentified taxa, called CSP1-CPS7, were analyzed by GC-MS and GC-FID, such analysis revealed a highly variable chemical composition. It were identified 131 components by comparing the retention indices and mass spectra of compounds with literature data and NIST and Willey mass spectra libraries. With the chemical analysis of oil of Croton were established correlations between the taxa of C. heliotropiifolius, which can be differentiated by using their main chemical markers: (E)-caryophyllene and bicyclogermacrene. For comparative analysis of the chemical composition of essential oils of Croton species, chemometric tools as Principal Component Analysis (PCA) and hierarchic Cluster Analysis (HCA) was applied, by which it was possible to differentiate the components of the essential oil of aerial parts of Croton species grouped by class of compounds according to their biosynthetic origin (monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes, phenylpropanoids and derivatives of fatty acids). With this analysis it was possible to form three groups (I, II and III), corroborating the comparative analysis of chromatographic profiles. To our knowledge, this is the first report on the chemical composition of essential oils of C. pedicellatus and C. tetradenius.Este trabalho relata o estudo da composição e variação dos componentes químicos do óleo essencial das espécies de Croton do estado de Sergipe dando ênfase a sua importância quimiotaxonômica. Os óleos essenciais das partes aéreas frescas obtidos por hidrodestilação das amostras de Croton blanchetianus (CB-GA), C. campestris (CC-AML), C. heliotropiifolius coletadas em diferentes localidades do Estado (CH-SG1, CH-SG2, CH-GA, CH-SI e CH-AML), C. pedicellatus (CP-SI), C. tetradenius (CT-SG) e outros sete táxons ainda não identificados denominados (CSP1-CPS7) foram analisados por CG-EM e CG-DIC revelando uma composição química bastante variável. Foram identificados 131 componentes, baseados nos índices de retenção e na comparação de seus espectros de massas com os da literatura e com as bibliotecas de espectros de massas Willey e NIST. Com a análise química dos óleos de Croton foram estabelecidas correlações entre os táxons de C. heliotropiifolius, os quais foram diferenciados dos demais mediante a utilização de seus marcadores químicos principais: (E)-cariofileno e biciclogermacreno. Para as análises comparativas da composição química dos óleos essenciais das espécies de Croton aplicaram-se ferramentas quimiométricas de Análise dos Componentes Principais (ACP) e Análise de Agrupamentos Herarquicos (AAH), pelas quais foi possível diferenciar os componentes do óleo essencial das partes aéreas das espécies de Croton agrupados por classe de compostos de acordo com sua origem biossintética (hidrocarbonetos monoterpênicos, monoterpenos oxigenados, hidrocarbonetos sesquiterpênicos, sesquiterpenos oxigenados, fenilpropanóides e derivados de ácidos graxos). Com essas análises foi possível a formação de três grupos (I, II e III), corroborando com as análises comparativas dos perfis cromatográficos. Ao nosso conhecimento, este é o primeiro relato sobre a composição química dos óleos essenciais de C. pedicellatus e C. tetradenius.application/pdfporUniversidade Federal de SergipePós-Graduação em QuímicaUFSBRCrotonÓleos essenciaisQuimiotaxonomiaCG-EMCG-DICAnálises quimiométricasEssential oilsChemotaxonomyGC-MSGC-FIDChemoEtric analysisCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAEstudo comparativo de óleos essenciais de espécies de croton do estado de Sergipeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSORIGINALVALERIA_SANTOS_SANTANA.pdfapplication/pdf1747086https://ri.ufs.br/jspui/bitstream/riufs/6164/1/VALERIA_SANTOS_SANTANA.pdf7c4fbf4efb85dab7c3b4bf7694701427MD51TEXTVALERIA_SANTOS_SANTANA.pdf.txtVALERIA_SANTOS_SANTANA.pdf.txtExtracted texttext/plain147682https://ri.ufs.br/jspui/bitstream/riufs/6164/2/VALERIA_SANTOS_SANTANA.pdf.txt66ecb588349f2433cee1ec7acc784debMD52THUMBNAILVALERIA_SANTOS_SANTANA.pdf.jpgVALERIA_SANTOS_SANTANA.pdf.jpgGenerated Thumbnailimage/jpeg1244https://ri.ufs.br/jspui/bitstream/riufs/6164/3/VALERIA_SANTOS_SANTANA.pdf.jpg2a9cd46367235e4c67c162839e2e43d0MD53riufs/61642018-01-17 19:58:29.755oai:ufs.br:riufs/6164Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2018-01-17T22:58:29Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.por.fl_str_mv Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
title Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
spellingShingle Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
Santana, Valéria Santos
Croton
Óleos essenciais
Quimiotaxonomia
CG-EM
CG-DIC
Análises quimiométricas
Essential oils
Chemotaxonomy
GC-MS
GC-FID
Chemo
Etric analysis
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA
title_short Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
title_full Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
title_fullStr Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
title_full_unstemmed Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
title_sort Estudo comparativo de óleos essenciais de espécies de croton do estado de Sergipe
author Santana, Valéria Santos
author_facet Santana, Valéria Santos
author_role author
dc.contributor.author.fl_str_mv Santana, Valéria Santos
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7943088143954973
dc.contributor.advisor1.fl_str_mv Nogueira, Paulo Cesar de Lima
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/7805757437259766
contributor_str_mv Nogueira, Paulo Cesar de Lima
dc.subject.por.fl_str_mv Croton
Óleos essenciais
Quimiotaxonomia
CG-EM
CG-DIC
Análises quimiométricas
topic Croton
Óleos essenciais
Quimiotaxonomia
CG-EM
CG-DIC
Análises quimiométricas
Essential oils
Chemotaxonomy
GC-MS
GC-FID
Chemo
Etric analysis
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA
dc.subject.eng.fl_str_mv Essential oils
Chemotaxonomy
GC-MS
GC-FID
Chemo
Etric analysis
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA
description This paper reports the study of composition and variation of the chemical components of essential oils of Croton species of Sergipe emphasizing its importance chemotaxonomy. Essential oils from fresh aerial parts obtnained by hydrodistillation from samples of Croton blanchetianus (CB-GA), C. campestris (CC-AML), C. heliotropiifolius collected at different locations in the Sergipe (CH-SG1, CH-SG2, CH-GA, and CH-AML), C. pedicellatus (CP-SI), C. tetradenius (CT-SG) and seven other unidentified taxa, called CSP1-CPS7, were analyzed by GC-MS and GC-FID, such analysis revealed a highly variable chemical composition. It were identified 131 components by comparing the retention indices and mass spectra of compounds with literature data and NIST and Willey mass spectra libraries. With the chemical analysis of oil of Croton were established correlations between the taxa of C. heliotropiifolius, which can be differentiated by using their main chemical markers: (E)-caryophyllene and bicyclogermacrene. For comparative analysis of the chemical composition of essential oils of Croton species, chemometric tools as Principal Component Analysis (PCA) and hierarchic Cluster Analysis (HCA) was applied, by which it was possible to differentiate the components of the essential oil of aerial parts of Croton species grouped by class of compounds according to their biosynthetic origin (monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes, phenylpropanoids and derivatives of fatty acids). With this analysis it was possible to form three groups (I, II and III), corroborating the comparative analysis of chromatographic profiles. To our knowledge, this is the first report on the chemical composition of essential oils of C. pedicellatus and C. tetradenius.
publishDate 2011
dc.date.issued.fl_str_mv 2011-10-24
dc.date.accessioned.fl_str_mv 2017-09-27T13:58:16Z
dc.date.available.fl_str_mv 2017-09-27T13:58:16Z
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dc.publisher.none.fl_str_mv Universidade Federal de Sergipe
dc.publisher.program.fl_str_mv Pós-Graduação em Química
dc.publisher.initials.fl_str_mv UFS
dc.publisher.country.fl_str_mv BR
publisher.none.fl_str_mv Universidade Federal de Sergipe
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reponame_str Repositório Institucional da UFS
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