| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
28/10/2022 |
|
Data da última atualização: |
24/05/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SANTOS, P. V. L.; CRUZ, E. de N. S. da; BARROSO, A. de S.; MOURÃO, R. H. V.; SETZER, W. N.; SILVA, J. K. da; NASCIMENTO, W. M. O. do; COSTA, J. S. da; FIGUEIREDO, P. L. B. |
|
Afiliação: |
PAULO VINICIUS LIMA SANTOS, UNIVERSIDADE DO ESTADO DO PARÁ; ELLEN DE NAZARÉ S. DA CRUZ, UNIVERSIDADE DO ESTADO DO PARÁ; ADENILSON DE SOUSA BARROSO, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; ROSA HELENA VERAS MOURÃO, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; WILLIAM N. SETZER, AROMATIC PLANT RESEARCH CENTER; JOYCE KELLY DA SILVA, AROMATIC PLANT RESEARCH CENTER; WALNICE MARIA O DO NASCIMENTO, CPATU; JAMILE SILVA DA COSTA, UNIVERSIDADE DO ESTADO DO PARÁ; PABLO LUIS B. FIGUEIREDO, UNIVERSIDADE DO ESTADO DO PARÁ. |
|
Título: |
Chemometric analysis of the seasonal variation in the essential oil composition of Psidium acutangulum growing in the Brazilian Amazon. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Biochemical Systematics and Ecology, v. 105, 104528, Dec. 2022. |
|
DOI: |
https://doi.org/10.1016/j.bse.2022.104528 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Psidium acutangulum demonstrated promising results from its extracts for some biological activities, which may favor its use as herbal medicine. However, there is still a lack of research that identifies the chemical components of its essential oil. The present study aimed to evaluate the influence of climatic factors on the yield and the chemical composition of essential oils from the leaves and fruits of P. acutangulum. One specimen was monitored for one year with monthly collections. The essential oils were obtained by hydrodistillation, and the chemical composition was analyzed by gas chromatography coupled to mass spectrometry. Chemometric analyzes were performed to verify climatic influences on yields and the chemical composition of P. acutangulum oils. The average oil yields in the dry season (June/February, 0.7 ± 0.3%) and the rainy season (March/May, 0.9 ± 0.2%) did not show a statistical difference. There was a moderate negative correlation between oil yield and insolation (r = 0.53). The predominant class of EOs for seasonal (S) and fruits (F) were oxygenated sesquiterpenes (S: 27.9?85.0%; F: 15.5%), followed by sesquiterpene hydrocarbons (S: 5.5?46.2%; F: 51.0%) and monoterpene hydrocarbons (S:1.8?16.3%; F: 13.6%). The constituents with the highest content in the EOs of P. acutangulum were caryophyllene oxide (0.0?75.1%, 42.4 ± 18.2%), α-pinene (1.5?12.7%, 6.5 ± 3.7%), and α-cadinol (0.0?11.9%, 5.7 ± 2.2%) in leaves, and for the fruits were E-caryophyllene (21.6%) and α-cadinol (5.1%). Climatic parameters can be correlated with caryophyllene oxide and E-caryophyllene amounts, but not with α-cadinol and α-pinene. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) showed no separation between the oil samples of P. acutangulum during the dry and rainy periods. However, correlations were observed between the oils? constituents and the environmental parameters. There is great seasonal variability in P. acutangulum. Prior chemical knowledge must be available before suggesting its use. MenosPsidium acutangulum demonstrated promising results from its extracts for some biological activities, which may favor its use as herbal medicine. However, there is still a lack of research that identifies the chemical components of its essential oil. The present study aimed to evaluate the influence of climatic factors on the yield and the chemical composition of essential oils from the leaves and fruits of P. acutangulum. One specimen was monitored for one year with monthly collections. The essential oils were obtained by hydrodistillation, and the chemical composition was analyzed by gas chromatography coupled to mass spectrometry. Chemometric analyzes were performed to verify climatic influences on yields and the chemical composition of P. acutangulum oils. The average oil yields in the dry season (June/February, 0.7 ± 0.3%) and the rainy season (March/May, 0.9 ± 0.2%) did not show a statistical difference. There was a moderate negative correlation between oil yield and insolation (r = 0.53). The predominant class of EOs for seasonal (S) and fruits (F) were oxygenated sesquiterpenes (S: 27.9?85.0%; F: 15.5%), followed by sesquiterpene hydrocarbons (S: 5.5?46.2%; F: 51.0%) and monoterpene hydrocarbons (S:1.8?16.3%; F: 13.6%). The constituents with the highest content in the EOs of P. acutangulum were caryophyllene oxide (0.0?75.1%, 42.4 ± 18.2%), α-pinene (1.5?12.7%, 6.5 ± 3.7%), and α-cadinol (0.0?11.9%, 5.7 ± 2.2%) in leaves, and for the fruits were E-caryophyll... Mostrar Tudo |
|
Palavras-Chave: |
Quimiometria. |
|
Thesagro: |
Araçá Pêra; Myrtaceae; Óleo Essencial; Psidium Acutangulum. |
|
Thesaurus Nal: |
Amazonia; Chemometrics. |
|
Categoria do assunto: |
W Química e Física |
|
Marc: |
LEADER 03073naa a2200313 a 4500
001 2147850
005 2023-05-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.bse.2022.104528$2DOI
100 1 $aSANTOS, P. V. L.
245 $aChemometric analysis of the seasonal variation in the essential oil composition of Psidium acutangulum growing in the Brazilian Amazon.$h[electronic resource]
260 $c2022
520 $aPsidium acutangulum demonstrated promising results from its extracts for some biological activities, which may favor its use as herbal medicine. However, there is still a lack of research that identifies the chemical components of its essential oil. The present study aimed to evaluate the influence of climatic factors on the yield and the chemical composition of essential oils from the leaves and fruits of P. acutangulum. One specimen was monitored for one year with monthly collections. The essential oils were obtained by hydrodistillation, and the chemical composition was analyzed by gas chromatography coupled to mass spectrometry. Chemometric analyzes were performed to verify climatic influences on yields and the chemical composition of P. acutangulum oils. The average oil yields in the dry season (June/February, 0.7 ± 0.3%) and the rainy season (March/May, 0.9 ± 0.2%) did not show a statistical difference. There was a moderate negative correlation between oil yield and insolation (r = 0.53). The predominant class of EOs for seasonal (S) and fruits (F) were oxygenated sesquiterpenes (S: 27.9?85.0%; F: 15.5%), followed by sesquiterpene hydrocarbons (S: 5.5?46.2%; F: 51.0%) and monoterpene hydrocarbons (S:1.8?16.3%; F: 13.6%). The constituents with the highest content in the EOs of P. acutangulum were caryophyllene oxide (0.0?75.1%, 42.4 ± 18.2%), α-pinene (1.5?12.7%, 6.5 ± 3.7%), and α-cadinol (0.0?11.9%, 5.7 ± 2.2%) in leaves, and for the fruits were E-caryophyllene (21.6%) and α-cadinol (5.1%). Climatic parameters can be correlated with caryophyllene oxide and E-caryophyllene amounts, but not with α-cadinol and α-pinene. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) showed no separation between the oil samples of P. acutangulum during the dry and rainy periods. However, correlations were observed between the oils? constituents and the environmental parameters. There is great seasonal variability in P. acutangulum. Prior chemical knowledge must be available before suggesting its use.
650 $aAmazonia
650 $aChemometrics
650 $aAraçá Pêra
650 $aMyrtaceae
650 $aÓleo Essencial
650 $aPsidium Acutangulum
653 $aQuimiometria
700 1 $aCRUZ, E. de N. S. da
700 1 $aBARROSO, A. de S.
700 1 $aMOURÃO, R. H. V.
700 1 $aSETZER, W. N.
700 1 $aSILVA, J. K. da
700 1 $aNASCIMENTO, W. M. O. do
700 1 $aCOSTA, J. S. da
700 1 $aFIGUEIREDO, P. L. B.
773 $tBiochemical Systematics and Ecology$gv. 105, 104528, Dec. 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
22/03/2011 |
|
Data da última atualização: |
29/03/2017 |
|
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
|
Autoria: |
LANGE, T. L.; MONTEIRO, J. M. G. |
|
Afiliação: |
Toa Loaiza Lange; JOYCE MARIA GUIMARAES MONTEIRO, CNPS. |
|
Título: |
Avaliação do potencial de estabelecimento de projetos de Mecanismo de Desenvolvimento Limpo (MDL) de uso da terra, Mudança do Uso da Terra e Florestas (LULUCF) no município de Cachoeiras de Macacu, RJ - Brasil. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Rio de Janeiro: Embrapa Solos, 2010. |
|
Páginas: |
4 p. |
|
Série: |
(Embrapa Solos. Comunicado técnico, 56). |
|
ISSN: |
1517-5685 |
|
Idioma: |
Português |
|
Conteúdo: |
O aumento da concentração de Gases de Efeito Estufa (GEE) tem sido apontado como o principal agente de mudança nos processos dinâmicos da atmosfera, promovendo mudanças climáticas com ameaças à humanidade (IPCC, 2007). Em resposta aos problemas ambientais ligados às mudanças climáticas globais, a comunidade internacional adotou, em 1992, a Convenção Quadro das Nações Unidas sobre Mudança do Clima (CQNUMC) - conhecida internacionalmente pela sigla UNFCCC - United Nations Framework Convention on Climate Change. O Protocolo de Quioto, firmado em 1997, estabeleceu um acordo de metas globais coletivas para redução das emissões de gases de efeito estufa dos países industrializados a cerca de 5% dos níveis observados em 1990, entre 2008 e 2012 (UNFCCC, 1998). O Mecanismo de Desenvolvimento Limpo - MDL é o mecanismo criado no Protocolo de Quioto que permite a participação dos países em desenvolvimento na venda de Reduções Certificadas de Emissões (RCE) para os países com metas de redução de GEE. |
|
Palavras-Chave: |
Cachoeiras de Macacu; LULUCF; MDL. |
|
Thesagro: |
Uso da Terra. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/35584/1/comunicado-56.PDF
|
|
Marc: |
LEADER 01756nam a2200205 a 4500
001 1881960
005 2017-03-29
008 2010 bl uuuu u0uu1 u #d
022 $a1517-5685
100 1 $aLANGE, T. L.
245 $aAvaliação do potencial de estabelecimento de projetos de Mecanismo de Desenvolvimento Limpo (MDL) de uso da terra, Mudança do Uso da Terra e Florestas (LULUCF) no município de Cachoeiras de Macacu, RJ - Brasil.$h[electronic resource]
260 $aRio de Janeiro: Embrapa Solos$c2010
300 $a4 p.
490 $a(Embrapa Solos. Comunicado técnico, 56).
520 $aO aumento da concentração de Gases de Efeito Estufa (GEE) tem sido apontado como o principal agente de mudança nos processos dinâmicos da atmosfera, promovendo mudanças climáticas com ameaças à humanidade (IPCC, 2007). Em resposta aos problemas ambientais ligados às mudanças climáticas globais, a comunidade internacional adotou, em 1992, a Convenção Quadro das Nações Unidas sobre Mudança do Clima (CQNUMC) - conhecida internacionalmente pela sigla UNFCCC - United Nations Framework Convention on Climate Change. O Protocolo de Quioto, firmado em 1997, estabeleceu um acordo de metas globais coletivas para redução das emissões de gases de efeito estufa dos países industrializados a cerca de 5% dos níveis observados em 1990, entre 2008 e 2012 (UNFCCC, 1998). O Mecanismo de Desenvolvimento Limpo - MDL é o mecanismo criado no Protocolo de Quioto que permite a participação dos países em desenvolvimento na venda de Reduções Certificadas de Emissões (RCE) para os países com metas de redução de GEE.
650 $aUso da Terra
653 $aCachoeiras de Macacu
653 $aLULUCF
653 $aMDL
700 1 $aMONTEIRO, J. M. G.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
