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International Journal of Forestry Research
Volume 2014 (2014), Article ID 982576, 6 pages
http://dx.doi.org/10.1155/2014/982576
Research Article

Essential Oil Constituents and Yields from Leaves of Blepharocalyx salicifolius (Kunt) O. Berg and Myracrodruon urundeuva (Allemão) Collected during Daytime

1Department of Forest Engineering, University of Brasilia, 70904-970 Brasilia, DF, Brazil
2Institute of Chemistry, University of Brasilia, 70910-900 Brasilia, DF, Brazil
3Embrapa Genetic Resources and Biotechnology, 70770-917 Brasilia, DF, Brazil
4Embrapa Food Technology, 23020-470 Rio de Janeiro, RJ, Brazil

Received 18 October 2013; Revised 3 January 2014; Accepted 4 January 2014; Published 17 February 2014

Academic Editor: Piermaria Corona

Copyright © 2014 Olívia Bueno da Costa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study was to evaluate the essential oil composition and yield from leaves of two Brazilian species (Myracrodruon urundeuva and Blepharocalyx salicifolius) harvested during daytime. Essential oils were obtained by steam distillation and had their yield determined. Blepharocalyx salicifolius presented yields of 0.049% (9 a.m.), 0.045% (1 p.m.), and 0.069% (5 p.m.). For Myracrodruon urundeuva, we found 0.13% (9 a.m.), 0.11% (1 p.m.), and 0.08% (5 p.m.). Finally, compound identification and quantification were carried out by GC-MS and GC-FID techniques, respectively. Thirteen major compounds were identified for Blepharocalyx salicifolius, representing 91.6% of the EOs, of which p-cymene (25.9%) was detected as amajor component. Nine major compounds were identified for Myracrodruon urundeuva, representing 90.3% of the EOs, whereas β-myrcene showed the greatest concentration (66.4%).