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Abstract
The results of analyses by GC-MS-FID of essential oils obtained from cladodes and inflorescences from male and female specimens of Baccharis milleflora are presented here for the first time in the literature. The essential oil of B. milleflora presented high variations in the chemical components, especially in viridiflorol contents that varied from 2.11 to 41.48 %, and an unidentified component labeled 212 (M+.) (0.62 to 11.87 %). Data were analyzed using unsupervised statistical techniques, namely Hierarchical Cluster Analysis and Principal Component Analysis, and it was possible to observe different chemical compositions for the different plant organs. The same trend was observed when maturity of the plant organs was considered. Viridiflorol was isolated and identified by spectroscopic analyses.
Acknowledgments
We dedicate this work to the memory of Dr G. Hatschbach deceased last year. We thank CAPES for one Doctor in Science Scholarship (M.A. Besten) and one Post-Doctoral Fellowship (D. Granato), and CNPq for financial support (48107/2010-2) and for one Researcher Grant (D. S. Nunes, 307329/2013-5).