Identification of the main volatile compounds in the leaf and flower of <Emphasis Type="Italic">Tithonia diversifolia</Emphasis> (Hemsl) Gray |
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| Authors: | Dorcas O Moronkola Isiaka A Ogunwande Tameka M Walker William N Setzer Isaac O Oyewole |
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| Institution: | (1) Department of Chemistry, The Polytechnic, Ibadan, Nigeria;(2) Laboratory of Food Biotechnology, Division of Bioresources and Bioenvironmental Sciences, Faculty of Agriculture, Graduate School of Kyushu University, 6-10-1 Hakozaki, Higashi-ku Fukuoka, 812-8581, Japan;(3) Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA;(4) Department of Basic and Applied Science, Babcock University, Ilisan-Remo, Ogun State, Nigeria |
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| Abstract: | The composition of the essential oils of the leaves and flowers of Tithonia diversifolia (Hemsl) A. Gray, Mexican sunflower, are reported. The oils were obtained by hydrodistillation in an all-glass Clevenger-type apparatus and analyzed by GC–MS. The leaf oil was comprised of an abundance of α-pinene (32.9%), β-caryophyllene (20.8%), germacrene D (12.6%), β-pinene (10.9%) and 1, 8-cineole (9.1%). Germacrene D (20.3%), β-caryophyllene (20.1%) and bicyclogermacrene (8.0%) characterized the oil of the flower. A number of aliphatic fatty acids and a diterpenoid compound, sandaracopimaradiene, that were present in the flower, could not be detected in the leaf oil. |
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| Keywords: | Tithonia diversifolia (Hemsl) A Gray Volatile oil GC– MS α -Pinene β -Caryophyllene Germacrene D |
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