The essential oils of wild and cultivated Cymbopogon validus (Stapf) Stapf ex Burtt Davy and Elionurus muticus (Spreng.) Kunth from Zimbabwe
✍ Scribed by Lameck S. Chagonda; Christopher Makanda; Jean-Claude Chalchat
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 122 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0882-5734
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✦ Synopsis
The steam-distilled oils from wild and cultivated Cymbopogon validus (Stapf) Stapf ex Burtt Davy (Gramineae) and Elionurus muticus (Spreng.) Kunth (Gramineae) were analysed by GC and GC±MS. The major components from C. validus in the wild were: myrcene (23.1±35.6%), (E)-b-ocimene (10.3±11.5%), geraniol (3.4±8.3%), linalol (3.2±3.7%) and camphene (5.2±6.0%). Cultivated mature plants contained myrcene (11.6± 20.2%), (E)-b-ocimene (6.0±12.2%), borneol (3.9±9.5%) and geraniol (1.7±5.0%) and camphene (3.3±8.3%) as the major components. Young nursery crop/seedlings (20±30 cm high) contained oil with myrcene (20.6%), geraniol (17.1%) and germacrene-D-4-ol (8.3%) as the major components. Geranyl acetate (4.5%), linalol (4.5%) and borneol (2.9%) were notable minor components. The major components from wild and cultivated E. muticus were geranial (40.1±44.8%), neral (26.0±35.4%) and geranyl acetate (1.8±8.6%). Dried lower parts from cultivated E. muticus contained oil rich in geranial (29.6%), neral (20.2%) and geranyl acetate (18.8%), whilst the upper aerial parts contained geranial (41.9%), neral (26.4%) and geranyl acetate (4.7%) as the main components.