Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/2562
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Type: Artigo de Periódico
Issue Date: 2009
Authors: BRASIL, Davi do Socorro Barros
MÜLLER, Adolfo Henrique
GUILHON, Giselle Maria Skelding Pinheiro
ALVES, Claudio Nahum
ANDRADE, Eloisa Helena de Aguiar
SILVA, Joyce Kelly do Rosário da
MAIA, José Guilherme Soares
Title: Essential oil composition of Croton palanostigma Klotzsch from north Brazil
Citation: BRASIL, Davi do Socorro B. et al. Essential oil composition of Croton palanostigma Klotzsch from north Brazil. Journal of the Brazilian Chemical Society, São Paulo, v. 20, n. 6, p. 1188-1192, 2009. Disponível em: <http://www.scielo.br/pdf/jbchs/v20n6/a26v20n6.pdf>. Acesso em: 15 mar. 2012. <http://dx.doi.org/10.1590/S0103-50532009000600026>.
Resumo: Os óleos essenciais das folhas, ramos finos, galhos, cascas do caule e frutos de Croton palanostigma foram analisados por CG e CG-EM. Os componentes principais determinados no óleo das folhas foram linalol (25,4%), (E)-cariofileno (21,0%), metileugenol (17,2%) e β-elemeno (6,0%); no óleo dos ramos finos foram α-pineno (41,4%), limoneno (29,0%), sabineno (11,5%) e β-pineno (5,7%); no óleo dos galhos foram metileugenol (24,1%), (E)-metilisoeugenol (15,3%), α-pineno (11,2%) e (E)-cariofileno (8,5%); no óleo das cascas do caule foram a-pineno (31,6%), metileugenol (25,6%) e (E)-metilisoeugenol (23,7%); e no óleo dos frutos foram linalol (42,7%), metileugenol (16,3%) e β-elemeno (6,4%). Análise estatística mostrou que as folhas e os frutos apresentam significante similaridade entre si, assim como os galhos e as cascas do caule. Adicionalmente, o óleo obtido das cascas do caule possui elevada atividade larvicida sobre Artemia salina (CL50, 3,71 ± 0,01 mg mL-1).
Abstract: The essential oils of leaves, twigs, branches, trunk bark and fruits of Croton palanostigma were analyzed by GC and GC-MS. The main compounds found in the oil of the leaves were linalool (25.4%), (E)-caryophyllene (21.0%), methyleugenol (17.2%) and β-elemene (6.0%); in the oil of the twigs were α-pinene (41.4%), limonene (29.0%), sabinene (11.5%) and β-pinene (5.7%); in the oil of the branches were methyleugenol (24.1%), (E)-methylisoeugenol (15.3%), α-pinene (11.2%) and (E)-caryophyllene (8.5%); in the oil of the trunk bark were a-pinene (31.6%), methyleugenol (25.6%) and (E)-methylisoeugenol (23.7%); and in the oil of the fruits were linalool (42.7%), methyleugenol (16.3%) and β-elemene (6.4%). Statistical analysis showed that the leaves and fruit, and the branches and trunk bark, have significant similarities between them. In addition, the trunk bark oil has high brine shrimp larvicidal activity (LC50, 3.71 ± 0.01 mg mL-1).
Keywords: Fitoquímica
Euforbiácea
Essência aromática
Testes químicos e reagentes
Amazônia brasileira
Brasil - País
ISSN: 0103-5053
Appears in Collections:Artigos Científicos - ICEN
Artigos Científicos - FEQ/ITEC

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