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Abstract
The composition of the essential oils of Cymbopogon citratus and C. giganteus from Mali and the Ivory Coast were determined by GC and GC/MS, and they were found to contain 19 and 27 constituents, respectively. C. citratus oil from Mali contained a high proportion of citral (approx. 75%) (geranial/neral ca 2/1), some myrcene (6.2–9.1%) and geraniol (3.0–5.6%). It differed from the oil of the Ivory Coast in which the contents of geranial, neral and myrcene each ranged between 18–35%. C. giganteus oil was characterized by high proportions of cis- and trans-p-mentha-l(7),8-dien-2-ols (approx. 50%) and p-mentha-2,8-dien-l-ols (approx. 25%) together with isopiperitenol-carveol (approx. 10%) and traces of carvone (<5%).