Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil
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....
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MDPI AG
2011-01-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/16/2/1181/ |
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| author | Antonio Lelis Pinheiro Luiz Claudio Almeida Barbosa Cassia Gonçalves Magalhaes Celia Regina Alvares Maltha Cleber Jose da Silva Antonio Jacinto Demuner |
| author_facet | Antonio Lelis Pinheiro Luiz Claudio Almeida Barbosa Cassia Gonçalves Magalhaes Celia Regina Alvares Maltha Cleber Jose da Silva Antonio Jacinto Demuner |
| author_sort | Antonio Lelis Pinheiro |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-12T04:42:13Z |
| format | Article |
| id | doaj.art-49a118af9f8f4b1ebcc3ca31e85b9bca |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-12T04:42:13Z |
| publishDate | 2011-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-49a118af9f8f4b1ebcc3ca31e85b9bca2022-12-22T00:37:46ZengMDPI AGMolecules1420-30492011-01-011621181119110.3390/molecules16021181Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in BrazilAntonio Lelis PinheiroLuiz Claudio Almeida BarbosaCassia Gonçalves MagalhaesCelia Regina Alvares MalthaCleber Jose da SilvaAntonio Jacinto DemunerThis 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.http://www.mdpi.com/1420-3049/16/2/1181/MyrtaceaeLeptospermumseasonal variationessential oilsantibacterial activity |
| spellingShingle | Antonio Lelis Pinheiro Luiz Claudio Almeida Barbosa Cassia Gonçalves Magalhaes Celia Regina Alvares Maltha Cleber Jose da Silva Antonio Jacinto Demuner Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil Molecules Myrtaceae Leptospermum seasonal variation essential oils antibacterial activity |
| title | Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil |
| title_full | Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil |
| title_fullStr | Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil |
| title_full_unstemmed | Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil |
| title_short | Seasonal Variation in the Chemical Composition and Antimicrobial Activity of Volatile Oils of Three Species of Leptospermum (Myrtaceae) Grown in Brazil |
| title_sort | seasonal variation in the chemical composition and antimicrobial activity of volatile oils of three species of leptospermum myrtaceae grown in brazil |
| topic | Myrtaceae Leptospermum seasonal variation essential oils antibacterial activity |
| url | http://www.mdpi.com/1420-3049/16/2/1181/ |
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