Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez
Ano de defesa: | 2016 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Ciências Rurais |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Florestal
|
Departamento: |
Recursos Florestais e Engenharia Florestal
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/18094 |
Resumo: | This study aimed to contribute to the chemical knowledge and biological potential of two native trees of the Lauraceae family from Brazil as well as to find applications for the identified extractives. This way, the extractives obtained from Nectandra grandiflora Nees and Ocotea lancifolia (Schott) Mez were studied according to the following: I) Assessment of the N. grandiflora essential oil (EONG) fungicidal potential and its major constituent, (+)-dehydrofukinone (DHF), against wood-rot fungi; II) Verification of the changes on the EO production, chemical composition and antifungal activity in a population of O. lancifolia during one year; III) Characterization of leaf extractives from O. lancifolia and verification of their antioxidant potential as well as their properties as a wood-preserving agent; IV) Evaluation of the influence of three extraction methods on the yields of ethanolic extracts from N. grandiflora, and their chemical and physical properties and V) Assessment of the sedative and anesthetic potential of the N. grandiflora EO and DHF in an animal model. The EO were obtained by hydrodistillation and analyzed through gas chromatography. Multivariate analysis was used to assess the changes on the EO of leaves, inflorescences and fruits from O. lancifolia (EOOL) over a year of collection. The ethanolic extracts were obtained by conventional extraction using Soxhlet, ultrasound and microwave techniques and liquid chromatography (LC-MS), infrared and thermogravimetry were used for main characterization. Isolates of Pycnoporus sanguineus, Gloeophyllum trabeum, Trametes versicolor and Fusarium moniliforme were used for antifungal assays. The extracts antioxidant activity was evaluated by DPPH and ABTS radical reduction methodology. The sedative-anesthetic effects were evaluated in silver catfish juveniles and the tested concentrations were 23-828 mg/L of EONG and 9-160 mg/L of DHF. The EONG (5 μL/mL) promoted micelial inhibition above 70% with IC50 ranged from 0.39 to 1.22 μL/mL for G. trabeum and P. sanguineus, respectively. The DHF (1.25 mg/mL was effective against the both fungi (76.06-79.45%). High yields of leaves EOOL were observed in the spring (1.03%) and in the summer (0.96%), being caryophyllene oxide the predominant constituent, while β-chenopodiol, found in two samples, it is the main chemical difference detected by multivariate analysis. Leaves EOOL presented better antifungal activity against F. moniliforme (67.5%). The LC-MS analysis indicated the presence of quercetin-derivatives in the extracts of both tree species. Among the evaluated extraction methods, the conventional one showed superior yield and thermal stability for N. grandiflora extracts; however, the chemical compositions of different extracts were similar. The antioxidant potential was verified for all assessed extractives. Wood samples treated with 4% of O. lancifolia extractives presented mass loss lower than 8%. Animals exposed to 92-828 mg/L of EONG and 50-160 mg/L reached the anesthesia stage. Analyzing the results, different classes of secondary metabolites were identified in the studied species outlining their promising applications as natural antioxidants, anesthetics for aquatic animals and fungicidal agents. |
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oai:repositorio.ufsm.br:1/18094 |
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2019-08-30T19:48:25Z2019-08-30T19:48:25Z2016-12-19http://repositorio.ufsm.br/handle/1/18094This study aimed to contribute to the chemical knowledge and biological potential of two native trees of the Lauraceae family from Brazil as well as to find applications for the identified extractives. This way, the extractives obtained from Nectandra grandiflora Nees and Ocotea lancifolia (Schott) Mez were studied according to the following: I) Assessment of the N. grandiflora essential oil (EONG) fungicidal potential and its major constituent, (+)-dehydrofukinone (DHF), against wood-rot fungi; II) Verification of the changes on the EO production, chemical composition and antifungal activity in a population of O. lancifolia during one year; III) Characterization of leaf extractives from O. lancifolia and verification of their antioxidant potential as well as their properties as a wood-preserving agent; IV) Evaluation of the influence of three extraction methods on the yields of ethanolic extracts from N. grandiflora, and their chemical and physical properties and V) Assessment of the sedative and anesthetic potential of the N. grandiflora EO and DHF in an animal model. The EO were obtained by hydrodistillation and analyzed through gas chromatography. Multivariate analysis was used to assess the changes on the EO of leaves, inflorescences and fruits from O. lancifolia (EOOL) over a year of collection. The ethanolic extracts were obtained by conventional extraction using Soxhlet, ultrasound and microwave techniques and liquid chromatography (LC-MS), infrared and thermogravimetry were used for main characterization. Isolates of Pycnoporus sanguineus, Gloeophyllum trabeum, Trametes versicolor and Fusarium moniliforme were used for antifungal assays. The extracts antioxidant activity was evaluated by DPPH and ABTS radical reduction methodology. The sedative-anesthetic effects were evaluated in silver catfish juveniles and the tested concentrations were 23-828 mg/L of EONG and 9-160 mg/L of DHF. The EONG (5 μL/mL) promoted micelial inhibition above 70% with IC50 ranged from 0.39 to 1.22 μL/mL for G. trabeum and P. sanguineus, respectively. The DHF (1.25 mg/mL was effective against the both fungi (76.06-79.45%). High yields of leaves EOOL were observed in the spring (1.03%) and in the summer (0.96%), being caryophyllene oxide the predominant constituent, while β-chenopodiol, found in two samples, it is the main chemical difference detected by multivariate analysis. Leaves EOOL presented better antifungal activity against F. moniliforme (67.5%). The LC-MS analysis indicated the presence of quercetin-derivatives in the extracts of both tree species. Among the evaluated extraction methods, the conventional one showed superior yield and thermal stability for N. grandiflora extracts; however, the chemical compositions of different extracts were similar. The antioxidant potential was verified for all assessed extractives. Wood samples treated with 4% of O. lancifolia extractives presented mass loss lower than 8%. Animals exposed to 92-828 mg/L of EONG and 50-160 mg/L reached the anesthesia stage. Analyzing the results, different classes of secondary metabolites were identified in the studied species outlining their promising applications as natural antioxidants, anesthetics for aquatic animals and fungicidal agents.A presente tese visa contribuir com o conhecimento químico e o potencial biológico de espécies arbóreas da família Lauraceae nativas do Brasil, assim como encontrar aplicações para os extrativos identificados. Desse modo, extrativos foram obtidos das espécies Nectandra grandiflora Nees e Ocotea lancifolia (Schott) Mez e estudados de acordo com os seguintes objetivos: I) Avaliar se o óleo essencial (OE) de N. grandiflora (OENG) e seu constituinte majoritário, (+)-deidrofuquinona (DHF), apresentam potencial fungitóxico frente a fungos apodrecedores de madeira; II) Verificar se a variabilidade da produção de OE, composição química e atividade antifúngica de uma população de O. lancifolia durante um ano; III) Caracterizar detalhadamente os extrativos foliares de O. lancifolia e verificar seu potencial como antioxidante e como agente preservante de madeira; IV) Avaliar a influência de três métodos de extração sobre o rendimento de extrato etanólico de N. grandiflora, suas propriedades químicas e físicas e V) Avaliar o potencial sedativo-anestésico do OE de N. grandiflora e do constituinte DHF em modelo animal. Os OE foram obtidos através da hidrodestilação e analisados em cromatografia gasosa. A análise multivariada foi usada para verificar a variabilidade dos OE de folhas, inflorescências e frutos de O. lancifolia (OEOL) durante o ano de coleta. Os extratos etanólicos foram obtidos através da extração convencional com uso de Soxhlet, ultrassom e micro-ondas e as técnicas de cromatografia líquida (CL-EM), infravermelho e termogravimétrica foram usadas para as caracterizações principais. Nos ensaios antifúngicos utilizaram-se isolados de Pycnoporus sanguineus, Gloeophyllum trabeum, Trametes versicolor e Fusarium moniliforme. A atividade antioxidante dos extratos foi avaliada através da metodologia de redução dos radicais DPPH e ABTS. Os efeitos sedativo-anestésicos foram avaliados em juvenis de jundiá e as concentrações testadas foram: 23-828 mg/L de OENG e 9-160 mg/L de DHF. O OENG (5 μL/mL) inibiu o crescimento micelial fúngico a partir de 70% com IC50 iguais a 0,39 e 1,22 μL/mL para G. trabeum e P. sanguineus, respectivamente. A DHF (1,25 mg/mL) também foi efetiva contra os fungos mencionados (76.06-79.45%). Maiores teores de OEOL obtidos de folhas foram observados na primavera (1,03%) e no verão (0,96%), sendo o óxido de cariofileno o constituinte predominante, enquanto que o β-quenopodiol, encontrado em duas amostras, foi a principal diferença química detectada pela análise multivariada. O OEOL de folhas apresentou maior atividade fungitóxica contra F. moniliforme (67,5%). As análises de CL-EM indicaram a presença de derivados da quercetina nos extratos de ambas as espécies. Entre os métodos de extração avaliados, o convencional mostrou rendimento e estabilidade térmica superiores para os extratos de N. grandiflora, no entanto as composições químicas dos diferentes extratos foram semelhantes. Potencial antioxidante foi verificado para todos os extrativos avaliados. Amostras de madeiras tratadas com extrativos de O. lancifolia a 4% apresentaram perdas de massa menores que 8%. Os animais expostos a 92-828 mg/L de OENG e a 50-160 mg/L de DHF atingiram o estágio de anestesia. Diante dos resultados, foi possível identificar diferentes classes de metabólitos secundários nas espécies estudadas e delinear suas promissoras aplicações, no âmbito dos antioxidantes naturais, anestésicos para uso veterinário e agentes fungitóxicos.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Engenharia FlorestalUFSMBrasilRecursos Florestais e Engenharia FlorestalAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessAntioxidantes naturaisEfeito depressor centralLauraceaePotencial fungitóxicoProdutos derivados de plantasVariabilidade químicaNatural antioxidantsCentral depressant effectFungicidal potentialPlant-derived productsChemical variabilityCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALCaracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) MezChemical caracterization and biological activities of the extractives obtained from Nectandra grandiflora Nees and Ocotea lancifolia (Shott) Mezinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisHeinzmann, Berta Mariahttp://lattes.cnpq.br/0786124562427815Lazarotto, Maríliahttp://lattes.cnpq.br/1310246210091310Sampaio, Paulo de Tarso Barbosahttp://lattes.cnpq.br/0517307169401972Schmidt, Denisehttp://lattes.cnpq.br/5512500747950163Amaral, Lúcio de Paulahttp://lattes.cnpq.br/6612592358172016http://lattes.cnpq.br/4121985816628344Silva, Daniela Thomas da500200000003600ef52d431-0698-40fb-ab56-1dbd415cc5d76e136fa9-df85-403c-b104-e8c08c740091cba6e561-b1bb-42c2-9b68-77ed9265435a22d1aab4-cf81-44be-ad5d-3cf9483ff93ee7692105-3f1e-45f8-91c5-89fdd98f43d70dc06b07-acdf-4c76-9b58-6a68ee610e29reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
dc.title.alternative.eng.fl_str_mv |
Chemical caracterization and biological activities of the extractives obtained from Nectandra grandiflora Nees and Ocotea lancifolia (Shott) Mez |
title |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
spellingShingle |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez Silva, Daniela Thomas da Antioxidantes naturais Efeito depressor central Lauraceae Potencial fungitóxico Produtos derivados de plantas Variabilidade química Natural antioxidants Central depressant effect Fungicidal potential Plant-derived products Chemical variability CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
title_full |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
title_fullStr |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
title_full_unstemmed |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
title_sort |
Caracterização química e atividades biológicas de extrativos obtidos de Nectandra grandiflora Nees e Ocotea lancifolia (Shott) Mez |
author |
Silva, Daniela Thomas da |
author_facet |
Silva, Daniela Thomas da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Heinzmann, Berta Maria |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0786124562427815 |
dc.contributor.referee1.fl_str_mv |
Lazarotto, Marília |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/1310246210091310 |
dc.contributor.referee2.fl_str_mv |
Sampaio, Paulo de Tarso Barbosa |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0517307169401972 |
dc.contributor.referee3.fl_str_mv |
Schmidt, Denise |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/5512500747950163 |
dc.contributor.referee4.fl_str_mv |
Amaral, Lúcio de Paula |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/6612592358172016 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/4121985816628344 |
dc.contributor.author.fl_str_mv |
Silva, Daniela Thomas da |
contributor_str_mv |
Heinzmann, Berta Maria Lazarotto, Marília Sampaio, Paulo de Tarso Barbosa Schmidt, Denise Amaral, Lúcio de Paula |
dc.subject.por.fl_str_mv |
Antioxidantes naturais Efeito depressor central Lauraceae Potencial fungitóxico Produtos derivados de plantas Variabilidade química |
topic |
Antioxidantes naturais Efeito depressor central Lauraceae Potencial fungitóxico Produtos derivados de plantas Variabilidade química Natural antioxidants Central depressant effect Fungicidal potential Plant-derived products Chemical variability CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
dc.subject.eng.fl_str_mv |
Natural antioxidants Central depressant effect Fungicidal potential Plant-derived products Chemical variability |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
This study aimed to contribute to the chemical knowledge and biological potential of two native trees of the Lauraceae family from Brazil as well as to find applications for the identified extractives. This way, the extractives obtained from Nectandra grandiflora Nees and Ocotea lancifolia (Schott) Mez were studied according to the following: I) Assessment of the N. grandiflora essential oil (EONG) fungicidal potential and its major constituent, (+)-dehydrofukinone (DHF), against wood-rot fungi; II) Verification of the changes on the EO production, chemical composition and antifungal activity in a population of O. lancifolia during one year; III) Characterization of leaf extractives from O. lancifolia and verification of their antioxidant potential as well as their properties as a wood-preserving agent; IV) Evaluation of the influence of three extraction methods on the yields of ethanolic extracts from N. grandiflora, and their chemical and physical properties and V) Assessment of the sedative and anesthetic potential of the N. grandiflora EO and DHF in an animal model. The EO were obtained by hydrodistillation and analyzed through gas chromatography. Multivariate analysis was used to assess the changes on the EO of leaves, inflorescences and fruits from O. lancifolia (EOOL) over a year of collection. The ethanolic extracts were obtained by conventional extraction using Soxhlet, ultrasound and microwave techniques and liquid chromatography (LC-MS), infrared and thermogravimetry were used for main characterization. Isolates of Pycnoporus sanguineus, Gloeophyllum trabeum, Trametes versicolor and Fusarium moniliforme were used for antifungal assays. The extracts antioxidant activity was evaluated by DPPH and ABTS radical reduction methodology. The sedative-anesthetic effects were evaluated in silver catfish juveniles and the tested concentrations were 23-828 mg/L of EONG and 9-160 mg/L of DHF. The EONG (5 μL/mL) promoted micelial inhibition above 70% with IC50 ranged from 0.39 to 1.22 μL/mL for G. trabeum and P. sanguineus, respectively. The DHF (1.25 mg/mL was effective against the both fungi (76.06-79.45%). High yields of leaves EOOL were observed in the spring (1.03%) and in the summer (0.96%), being caryophyllene oxide the predominant constituent, while β-chenopodiol, found in two samples, it is the main chemical difference detected by multivariate analysis. Leaves EOOL presented better antifungal activity against F. moniliforme (67.5%). The LC-MS analysis indicated the presence of quercetin-derivatives in the extracts of both tree species. Among the evaluated extraction methods, the conventional one showed superior yield and thermal stability for N. grandiflora extracts; however, the chemical compositions of different extracts were similar. The antioxidant potential was verified for all assessed extractives. Wood samples treated with 4% of O. lancifolia extractives presented mass loss lower than 8%. Animals exposed to 92-828 mg/L of EONG and 50-160 mg/L reached the anesthesia stage. Analyzing the results, different classes of secondary metabolites were identified in the studied species outlining their promising applications as natural antioxidants, anesthetics for aquatic animals and fungicidal agents. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-12-19 |
dc.date.accessioned.fl_str_mv |
2019-08-30T19:48:25Z |
dc.date.available.fl_str_mv |
2019-08-30T19:48:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/18094 |
url |
http://repositorio.ufsm.br/handle/1/18094 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500200000003 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
ef52d431-0698-40fb-ab56-1dbd415cc5d7 6e136fa9-df85-403c-b104-e8c08c740091 cba6e561-b1bb-42c2-9b68-77ed9265435a 22d1aab4-cf81-44be-ad5d-3cf9483ff93e e7692105-3f1e-45f8-91c5-89fdd98f43d7 0dc06b07-acdf-4c76-9b58-6a68ee610e29 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Florestal |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Recursos Florestais e Engenharia Florestal |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/18094/3/license.txt http://repositorio.ufsm.br/bitstream/1/18094/2/license_rdf http://repositorio.ufsm.br/bitstream/1/18094/1/TES_PPGEF_2016_SILVA_DANIELA.pdf http://repositorio.ufsm.br/bitstream/1/18094/4/TES_PPGEF_2016_SILVA_DANIELA.pdf.jpg |
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MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
|
_version_ |
1801223950215151616 |