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https://locus.ufv.br//handle/123456789/12171
Tipo: | Artigo |
Título: | Seasonal variation in the chemical composition and antimicrobial activity of volatile oils of three species of Leptospermum (Myrtaceae) grown in Brazil |
Autor(es): | Demuner, Antonio Jacinto Barbosa, Luiz Claudio Almeida Magalhaes, Cassia Gonçalves Silva, Cleber Jose Da Maltha, Celia Regina Alvares Pinheiro, Antonio Lelis |
Abstract: | This study investigates the seasonal variation of three species of Leptospermum (Myrtaceae) grown in Brazil. The chemical composition of the volatile oils of L. flavescens and L. petersonii did not show any significant seasonal variation in the major components, while for Leptospermum madidum subsp. sativum the levels of major constituents of the volatile oils varied with the harvest season. Major fluctuations in the composition of L. madidum subsp. sativum oil included α-pinene (0–15.2%), β-pinene (0.3–18.5%), α-humulene (0.8–30%), 1,8-cineole (0.4–7.1%) and E-caryophyllene (0.4–11.9%). Levels of β-pinene (0.3–5.6%), terpinen-4-ol (4.7–7.2%) and nerolidol (55.1–67.6%) fluctuated seasonally in the L. flavescens oil. In L. petersonii, changes were noted for geranial (29.8–32.8%), citronellal (26.5–33.9%) and neral (22.7–23.5%). The activity of the volatile oils against the tested bacteria differed, depending on season the oils were obtained. In general, the volatile oils were more active against Gram-positive bacteria. |
Palavras-chave: | Myrtaceae Leptospermum Seasonal variation; Essential oils Antibacterial activity |
Editor: | Molecules |
Tipo de Acesso: | Open Access |
URI: | https://doi.org/10.3390/molecules16021181 http://www.locus.ufv.br/handle/123456789/12171 |
Data do documento: | 26-Jan-2011 |
Aparece nas coleções: | Artigos |
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molecules-16-01181.pdf | texto completo | 256,41 kB | Adobe PDF | Visualizar/Abrir |
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