Auteur Isiaka, A. Ogunwande
Documents disponibles écrits par cet auteur (14)
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Isiaka, A. Ogunwande, Auteur ; Nureni O. Olawore, Auteur ; Kasali A. Adeleke, Auteur |Volatile compounds from the leaves of Callitris columellaris F. Muell. collected from Ibadan (southwest) and Kaduna (north central), Nigeria, were analyzed by GC and GC/MS. The predominant compounds were limonene (37.2%) and bornyl acetate (27.1[...]
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Emmanuel Essien, Auteur ; Isiaka, A. Ogunwande, Auteur ; Akinola O. Ogunbinu, Auteur |The essential oil of Dialium guineense Willd., grown in Nigeria has been studied by GC and GC/MS. Precocene I (78.8%) was the most singly abundant constituent, with a significant proportion of β-caryophyllene (5.3%). With the exception of valenc[...]
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Nureni O. Olawore, Auteur ; Isiaka, A. Ogunwande, Auteur |The yield and chemical composition of the oil obtained by hydrodistillation of the leaves of Araucaria cunninghamii Sweet., grown in the southwest region of Nigeria are reported. The analyses were made by GC and GC/MS. The oil was found to conta[...]
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Nureni O. Olawore, Auteur ; Lamidi A. Usman, Auteur ; Isiaka, A. Ogunwande, Auteur |The essential oils of the rhizomes of the red and black types of Cyperus articulatus L. were investigated by GC and GC/MS. Oxygenated sesquiterpenes constituted the bulk of both oils (54.2% and 52.1% for the red and black types, respectively). T[...]
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Isiaka, A. Ogunwande, Auteur ; Vassiliki Saroglou, Auteur ; Eleni Skaltsa, Auteur |The essential oils isolated from the air-dried leaves of four Nigerian plants of Commiphora kerstingii Engl (Burseraceae), Mangifera indica L., (Anacardiaceae), Callitris glauca R. Br. ex R.T. Baker. et H.G. Smith (Cupressaceae) and Ficus mucosa[...]
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Dimas Kubmarawa, Auteur ; Isiaka, A. Ogunwande, Auteur ; Domingo A. Okorie, Auteur |The air-dried leaves of Boswellia dalzielli Hutch. on hydrodistillation gave an essential oil in a yield of 1.25 (v/w). The chemical composition of the essential oil was analyzed by GC and GC/MS. Twenty-nine compounds were identified, with α-pin[...]
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Isiaka, A. Ogunwande, Auteur ; Olusegun Ekundayo, Auteur ; Nureni O. Olawore, Auteur |The pulverized samples of the leaves and stem bark of Cedrela mexicana L. were subjected to hydrodistillation and the essential oils obtained were characterized by GC and GC/MS. Sesquiterpenes were the predominant components in both oils. The ma[...]
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Akinola O. Ogunbinu, Auteur ; Isiaka, A. Ogunwande, Auteur ; Pier L. Cioni, Auteur |The volatile oil obtained by hydrodistillation from the leaf of Eclipta indica L. was analyzed for its constituents by means of GC and GC/MS. 2-Tridecanone (89.7%), a straight chain ketone, was the singly most abundant constituent. Caryophyllene[...]
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Isiaka, A. Ogunwande, Auteur ; Emmanuel E. Essien, Auteur ; Akinola O. Ogunbinu, Auteur |The volatile composition of Klainedoxa gabonensis Pierre ex Engl., Brachystegia nigerica Hoyle et A. Jones and Acalypha segetalis Muell Arg., has been studied. The essential oils were obtained by hydrodistillation in a modified Clevenger-type ap[...]
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Isiaka, A. Ogunwande, Auteur ; Olusegun Ekundayo, Auteur ; Nureni O. Olawore, Auteur |Hydrodistilled oil obtained from the leaves of Annona reticulata L. grown in Nigeria was analyzed by capillary GC and GC/MS. Thirty-nine components were characterized. These consisted of 18 monoterpenes amounting to 29.0%, 20 sesquiterpenes tota[...]
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Akinola O. Ogunbinu, Auteur ; Isiaka, A. Ogunwande, Auteur ; Emmanuel Essien, Auteur |The essential oils of the leaf and stem bark of Polyalthia longifolia Thw. (Annonaceae) have been studied for their constituents by means of GC and GC/MS. The leaf oil was almost exclusively composed of sesquiterpene derivatives, being represent[...]
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Dorcas O. Moronkola, Auteur ; Isiaka, A. Ogunwande, Auteur ; Isaac O. Oyewole, Auteur |The oils obtained from the aerial shrubs of Momordica charantia L. and Phyllanthus amarus Sch. et Thonn from Nigeria, were analyzed for their constituents by means of gas chromatography (GC) and gas chromatography coupled with mass spectrometry [...]
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Isiaka, A. Ogunwande, Auteur ; Nureni O. Olawore, Auteur |The essential oils from the leaves and flowers of Tagetes erecta L. cultivated in Nigeria were examined by GC and GC/MS. Piperitone (50.7%), piperitenone (13.2%) and (E)-β-ocimene (6.7%) were the predominant components in the leaf oil. The flowe[...]
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Dorcas O. Moronkola, Auteur ; Isiaka, A. Ogunwande, Auteur ; Isaac O. Oyewole, Auteur |Essential oil composition of fresh needles from Pinus caribaea Morelet (Carribean pine) grown in Nigeria was investigated by a combination of GC and GC/MS. The 44 oil constituents, obtained by hydrodistillation, were largely dominated by monote[...]
