Volatile oil constituents of the Ethiopian plant Salvia schimperi Benth.
✍ Scribed by Molla M. Endeshaw; O. R. Gautun; Nigist Asfaw; A. J. Aasen
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 126 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0882-5734
No coin nor oath required. For personal study only.
✦ Synopsis
The volatile oils of the ¯owers and leaves of two collections (1997 and 1998) of the Ethiopian plant Salvia schimperi (Lamiaceae), have been examined separately by means of GC, chiral GC, GC±MS, GC±FTIR, 1 H-and 13 C-NMR. The main constituents of the essential oils of the ¯owers (1997) were identi®ed as linalol (56.3%), linalyl acetate (15.9%), g-terpinene (3.5%), and a-terpineol (4.1%). The oils from the leaves (1997) were found to contain linalol (26.6%), linalyl acetate (8.0%), trans-caryophyllene (10.6%) and aromadendrene (4.4%) as major components. Minor dierences in the percentage compositions of these compounds were noted for the last collection from the same place and season (1998). The oils from the leaves contained considerably more sesquiterpenes than the oils from the ¯owers. The enantiomeric compositions of some of the constituents are (R) : (S)-linalol, 91 : 9; (R) : (S)-linalyl acetate 4 99 : 1; (R) : (S)-a-terpineol, 79 : 21; and (R) : (S)-terpinen-4-ol, 29 : 71.