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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Non-Oxygenated Sesquiterpenes in the Essential Oil of Copaifera langsdorffii Desf. Increase during the Day in the Dry Season

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Rolim de Almeida, Luiz Fernando [1] ; Portella, Roberto de Oliveira [1] ; Bufalo, Jennifer [1] ; Mayo Marques, Marcia Ortiz [2] ; Facanali, Roselaine [2] ; Frei, Fernando [3]
Total Authors: 6
[1] Univ Estadual Paulista UNESP, Dept Bot, Inst Biosci Botucatu, POB 510, BR-18618970 Sao Paulo - Brazil
[2] IAC, Inst Agron, POB 28, BR-13001970 Sao Paulo - Brazil
[3] Univ Estadual Paulista UNESP, Dept Biol Sci, BR-19800000 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: PLoS One; v. 11, n. 2 FEB 17 2016.
Web of Science Citations: 7

The present study aimed to evaluate the effect of seasonal and diurnal events on the chemical profile of the essential oil obtained from the leaves of Copaifera langsdorffii Desf. This study was performed in a Brazilian savanna named Cerrado. We identified the best harvesting period for obtaining the highest amount of compounds used for commercial and industrial purposes. The chemical profile of the essential oils was evaluated by GC-FID and GC-MS, and the results were assessed through multivariate analyses. The data showed that the time of day and seasonal variations affect the quality of the essential oil obtained. Leaves harvested at the end of the day (5: 00 pm) in the dry season resulted in richer essential oils with higher amounts of non-oxygenated sesquiterpenes. To the best of our knowledge, environmental conditions induce metabolic responses in the leaves of C. langsdorffii, which changes the patterns of sesquiterpene production. Therefore, these factors need to be considered to obtain better concentrations of bioactive compounds for pharmacological studies. (AU)

FAPESP's process: 10/15585-6 - Effect of drought on the allelopathic potential of copaiba (Copaifera langsdorffii Desf.)
Grantee:Luiz Fernando Rolim de Almeida
Support Opportunities: Regular Research Grants
FAPESP's process: 13/07629-1 - Seasonality effects in Cerrado on production of volatile compounds and ecophysiological parameters in Copaifera langsdorffii Desf. (copaíba)
Grantee:Roberto de Oliveira Portella
Support Opportunities: Scholarships in Brazil - Scientific Initiation