Chemical composition of the essential oils from leaves, flowers, stems and roots of Salvia macilenta Boiss.

The genus Salvia، belonging to the Lamiaceae family، contains 58 species in Iran، 17 of which are endemic. In this study، Salvia macilenta Boiss. was collected from Bam-Jiroft road، Jebalbarez area، Kerman Province، Iran، in May 2012. The essential oils of leaves، flowers، stems and roots of the plantwere separately extracted using hydrodistillation method and analyzed by GC and GC/MS. In the leaf oil، 46 components were identified، representing 99. 7% of the total oil، with α-pinene (36. 4%)، β-pinene (7. 6%)، borneol (5. 4%) and β-caryophyllene (5. 1%) as the main constituents. The flower oil was characterized by higher amount of α-pinene (45. 1%)، β-pinene (10. 5%)، camphene (8. 8%) and limonene (6. 8%) among the 26 components comprising 100% of the total oil detected. Furthermore، 18 compounds were identified in the stem oil، representing 97. 5% of the total oil. α-Pinene (25. 1%)، bornyl acetate (16. 8%)، β-eudesmol (8. 6%) and borneol (8. 1%) were found to be the major constituents. In the root oil، 10 components were identified، representing 88. 2% of the total oil، with trans-viridiflorol (18. 1%)، β-eudesmol (16. 4%)، trans-ferruginol (15. 8%) and dibutyl phthalate (10. 6%) as the main constituents. Consequently، the leaf، flower and stem essential oils of S. macilenta were rich in monoterpenes، while α-pinene، the dominant component of these oils، was not identified in the root oil.