Characterization of Essential Oils from Helichrysum odoratissimum Using Different Drying Methods

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dc.contributor.authorAsekun, O.T.
dc.contributor.authorGrierson, D.S.
dc.contributor.authorAfolayan, A.J.
dc.date.accessioned2019-08-24T13:02:16Z
dc.date.available2019-08-24T13:02:16Z
dc.date.issued2007
dc.description.abstractHelichrysum odoratissimum is one of the most commonly used medicinal plants in South Africa. The essential oil from the herb was extracted and characterized for the first time using different drying methods. The oils isolated from fresh, air-dried, sun-dried and oven-dried aerial parts of the plant yielded 0.28, 0.46, 0.33 and 0.36%, respectively. The fresh leaf oil was characterized by a high content of oxygenated monoterpenes with the main constituents as p-menthone (35.4%), pulegone (34.2%) and 1, 8-cineole (13.0%). The dried plant oils had limonene (31.6-22.6%), β-caryophyllene (13.0-12.0%) and α-pinene (10.0-7.7%) as their major constituents. Generally, the yield and chemical profile of H. odoratissimum were affected by the drying methods utilized. There were noteworthy chemical alterations in the major components of the essential oils using different methods of drying. The compounds pulegone and menthone were reported as potentially harmful compounds, hence their substantial reduction in the dried oils as compared to the fresh leaf oil is noteworthy as it aids reduction of toxicity in the oils.en_US
dc.identifier.citationAsekun, O. T., Grierson, D. S., & Afolayan, A. J. (2007). Characterization of essential oils from Helichrysum odoratissimum using different drying methods. Journal of Applied Science, 7(7), 1005-1008.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4695
dc.language.isoenen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistry::Organic chemistryen_US
dc.subjectHelichrysumen_US
dc.subjectodoratissimumen_US
dc.subjectessential oilen_US
dc.subjectp-menthoneen_US
dc.subject1, 8-cineoleen_US
dc.titleCharacterization of Essential Oils from Helichrysum odoratissimum Using Different Drying Methodsen_US
dc.typeArticleen_US
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