Chemical composition of essential oils from Pinus caribaea Morelet needles




Allelochemicals, Buikwe district, limonene


Plant allelochemicals from essential oils have recently received considerable attention in pharmaceutical, cosmetic and agricultural sectors due to their biodegradability and low toxicity. This study analyzed the composition of essential oils of Pinus caribaea Morelet var. hondurensis needles. Thirty-nine compounds were identified using gas chromatography/mass chromatography and gas chromatography, and the most abundant components were limonene (38.6%), α-pinene (27.6%), borneol (6.7%) and myrcene (3.5%). Aristolene, ledol and guaiol were reported for the first time in P. caribeae needles. Composition of the needles was dominated by monoterpene hydrocarbons (77.2%) followed by oxygenated monoterpenes (12.0%), sesquiterpene hydrocarbons (4.7%) and oxygenated sesquiterpenes (1.7%).

Author Biographies

Kirima John Mary, Kyambogo University

Department of Chemistry, Graduate Student

Moses Okuta, Kyambogo University

Department of Chemistry, Graduate student

Timothy Omara, Moi University

Timothy Omara is a PhD candidate of Analytical Chemistry with Department of Chemistry and Biochemistry, School of Sciences and Aerospace Studies, Moi University, Uasin Gishu County, Kesses, P.O. Box 3900-30100, Academic Highway, Eldoret, Kenya. He is a lead researcher with the Africa Centre of Excellence II in Phytochemicals, Textiles and Renewable Energy. Timothy does research in Phyto-, Bio-, Environmental and Analytical Chemistry. Timothy is also a Senior Quality Specialist with AgroWays Uganda Limited, Jinja, Uganda


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