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Effects of Drying Methods on the Chemical Composition of Essential Oil from Felicia muricata Leaves

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Author(s): A.O.T. Ashafa | D.S. Grierson | A.J. Afolayan

Journal: Asian Journal of Plant Sciences
ISSN 1682-3974

Volume: 7;
Issue: 6;
Start page: 603;
Date: 2008;
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Keywords: Felicia muricata | essential oil | drying methods | monoterpenes | sesquiterpenes | cis-lachnophyllum ester

ABSTRACT
The effect of various methods of drying on the content and chemical quality of the essential oil of this herb was studied. The most prominent components in the fresh, air-dried, sun-dried and oven-dried oils extracted by hydrodistillation were the monoterpenes, α-pinene (9.1, 7.4, 10.2 and 6.8%), β-pinene (3.5, 3.6, 9.6 and 7.0%), myrcene (18.7, 18.4, 22.0 and 16.4%), limonene (26.5, 26.5, 24.4 and 27.4%), cis-ocimene (2.2, 1.9, 2.8 and 2.0%), trans-ocimene (4.8, 5.6, 12.4 and 11.6%) and α-terpineol (3.4, 2.7, 2.2 and 3.2%). Methyl-eugenol, β-caryophyllene, trans-farnesene and bicyclogermacrene were the major sesquiterpenes and all were in minute quantity. Cis-lachnophyllum ester (16.2, 18.1, 19.2 and 16.1%, respectively), was the dominating non-terpenoid polyacetylinic compound. The different drying methods have no significant effect on the quality and composition of essential oil from F. muricata.
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