The Effect of Drying Methods on the Chemical Composition of the Essential Oil of Caesalpinia Pulcherrima Growing in Lagos, Nigeria

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dc.contributor.authorNjoku, I.S.
dc.contributor.authorAsekun, O.T.
dc.contributor.authorFamiloni, O.B.
dc.date.accessioned2019-08-28T08:07:08Z
dc.date.available2019-08-28T08:07:08Z
dc.date.issued2016-12
dc.descriptionStaff Publicationsen_US
dc.description.abstractThis research studied the effects of different drying methods on the yield and chemical composition of hydrodistilled essential oil from the red variety of leaves of Caesalpinia pulcherrima. A total of 26, 23, 30 and 25 compounds were identified in the oils of the fresh, air-dried, sun-dried and oven-dried plant materials, respectively. In general, the air-dried plant yielded more essential oils than the fresh, sun-dried and oven-dried plant. The air-dried, sun-dried and oven-dried plant materials yielded 0.90 %, 0.20 % and 0.58 % of the essential oils, respectively whereas the fresh plant materials yielded oils of 0.63 %. The essential oils of Caesalpinia pulcherrima were composed mainly of sesquiterpenoids. The fresh leaf oil comprises caryophyllene, 15.51 %; α -cadinol 14.36 %; γ–muurolene, 13.28 %; nerolidol 8.32 % as the most prominent components. While, the major components common to the different drying methods are air-dried; (phytol, 12.28%; copaene, 9.07 %; γ-pyronene, 8.95 %; neryl propanoate, 6.55 %), sun-dried (neryl propanoate, 8.18 %; copaene, 5.49 %; phytol, 4.72 %; γ -pyronene, 0.87 %), oven-dried (copaene, 18.77 %; neryl propanoate, 7.61 %; γ-pyronene, 4.59 %; phytol - 3.25 %). This results showed that similar major compounds were present in all the dried leaf oils but at varying quantities, whereas, they all differ from the major compounds of the fresh leaf oil. This disparity may be due to chemical transformation of the components in the different environ ments exposed to for moisture removal.en_US
dc.identifier.citationNjoku, I.S., Asekun O.T., & Familoni, O.I. (2016). The Effect of Drying Methods on the Chemical Composition of the Essential Oil of Caesalpinia Pulcherrima Growing in Lagos, Nigeria.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4817
dc.language.isoenen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistry::Organic chemistryen_US
dc.subjectCaesalpinia pulcherrimaen_US
dc.subjectLeaf oilen_US
dc.subjectSesquiterpeneen_US
dc.subjectPhytolen_US
dc.titleThe Effect of Drying Methods on the Chemical Composition of the Essential Oil of Caesalpinia Pulcherrima Growing in Lagos, Nigeriaen_US
dc.typeArticleen_US
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