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| File | Description | Size | Format | |
|---|---|---|---|---|
| Analysis of the chemical composition of the essential oils extracted from Lippia lacunosa.pdf | 535.52 kB | Adobe PDF |  View/Open |
| Type: | Artigo de Periódico |
| Title: | Analysis of the chemical composition of the essential oils extracted from Lippia lacunosa Mart. & Schauer and Lippia rotundifolia Cham. (Verbenaceae) by gas chromatography and gas chromatography-mass spectrometry |
| Author: | Leitão, Suzana G. Oliveira, Danilo R. de Sülsen, Valeria Martino, Virginia Barbosa, Ymira Galico Bizzo, Humberto R. Lopes, Daíse Viccini, Lyderson Facio Salimena, Fátima Regina Gonçalves Peixoto, Paulo Henrique Pereira Leitão, Gilda G. |
| Resumo: | Lippia lacunosa e L. rotundifolia são duas espécies brasileiras que formam um complexo de difícil delimitação taxonômica. A composição química do óleo essencial das folhas e flores dessas plantas foi investigada por cromatografia com fase gasosa (CG) e por cromatografia com fase gasosa acoplada à espectrometria de massas (CG-EM). Principais constituintes dos óleos essenciais de L. lacunosa (flores e folhas): mirceno (14,7% e 11,9%), mircenona (45,2% e 64,2%), Z-ocimenona (5,7% e 5,2%), e E-ocimenona (14,7% e 4,1%), respectivamente; L. rotundifolia (flores e folhas): a-pineno (8,7% e 1,8%), mirceno (5,1% e 3,6%), limoneno (26,0% e 7,9 %), cis-pinocanfona (4,5% e 3,1%) e mirtenal (22,3% e 16,7%), respectivamente. Os óleos essenciais de L. lacunosa apresentaram um forte e agradável aroma de manga, que foi relacionado à presença de mirceno e mircenona. Diferenças fundamentais na composição química de seus óleos essenciais podem representar uma poderosa ferramenta na classificação botânica das espécies. |
| Abstract: | Lippia lacunosa and L. rotundifolia (Verbenaceae) are two Brazilian species of complex taxonomic delimitation. The composition of the essential oils from leaves and flowers of these plants was investigated by gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS) analysis. The major components of the essential oils of flowers and leaves of L. lacunosa were: myrcene (14.7% and 11.9%), myrcenone (45.2% and 64.2%), Z-ocimenone (5.7% and 5.2%), and E-ocimenone (14.7% and 4.1%), respectively; whereas in L. rotundifolia (flowers and leaves) were a-pinene (8.7% and 1.8%), myrcene (5.1% and 3.6%), limonene (26.0% and 7.9 %), cis-pinocamphone (4.5% and 3.1%) and myrtenal (22.3% and 16.7%), respectively. The essential oils from L. lacunosa exhibited a strong and pleasant mango aroma, which was related to the presence of myrcene and myrcenone. The marked differences in the chemical composition of their essential oils may represent a powerful tool for the botanical classification. |
| Keywords: | Lippia lacunosa Lippia rotundifolia Myrcene Myrcenone (E)-ocimenone Limonene Myrtenal GC GC-MS |
| CNPq: | - |
| Language: | eng |
| Country: | Brasil |
| Publisher: | - |
| Institution Initials: | - |
| Access Type: | Acesso Aberto |
| DOI: | http://dx.doi.org/10.1590/S0103-50532008000700023 |
| URI: | https://repositorio.ufjf.br/jspui/handle/ufjf/8924 |
| Issue Date: | 2008 |
| Appears in Collections: | Artigos de Periódicos |
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