Volatile Components ofCleistopholis patens

Abstract

Volatile oils of the leaves, fruits and stem-bark of CLEISTOPHOLIS PATENTS Engl. et Diels. (Annonacae) were analysed by means of gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). A total of sixty-one components were identified; qualitative and quantitative differences in the oil composition were observed. The leaf oil contained ( E)-beta-ocimene (31%) as the main constituent, the fruit oil linalool, ( E)- and ( Z)-linalool oxides (58%). The main components in the stem-bark oil were myrcene, P-cymene, and germacrene D.

Volatile oil composition of new chemotype of Ocimum basilicum L. from Nigeria

“…Only 11 of the 24 components had a common occurrence in this sample of O. basilicum and the two previously reported chemotypes of Nigeria origin. 5 Also, the sesquiterpenoid content of this sample was relatively small as compared with the earlier report on O. basilicum of Nigerian origin.…”

“…In earlier work on Nigerian O. basilicum two chemotypes were identified. 5 The possibility of identifying a different chemotype from that reported earlier prompted us to carry out this study, since this sample of O. basilicum was collected from Badagry, Lagos, which is about 400 km from the site of collection of the earlier reported sample.…”

“…[1][2][3][4][5][6][7][8] The essential oil of O. basilicum varies in chemical constituents and there is extensive diversity in the constituents of oils from various parts of the world. 5,6 There are usually considerable variations in the major components within this species. 7 In most cases, four compounds-methyl chavicol, linalool, methylcinnamate and eugenol-occur in the oil in varying degrees of abundance.…”

“…7 In most cases, four compounds-methyl chavicol, linalool, methylcinnamate and eugenol-occur in the oil in varying degrees of abundance. 5 As a consequence there are several chemotypes of basil oils identified according to their major compounds, including methylchavicol, methylchavicolmethyleugenol, methyleugenol, eugenol, methylcinnamate, linalool, linalool-geraniol, methylchavicol-linalool, methylchavicol-linalool-methylcinnamate, 8 etc. In earlier work on Nigerian O. basilicum two chemotypes were identified.…”

<b>4,5-Epoxide-1,6-dimethyl-1-vinylhexyl <i>p</i>-coumarate: A novel monoterpene derivative from <i>Cleistopholis patens</i></b>

“…Previous phytochemical studies carried out on the stem and root-bark have yielded a number of monoterpenes, sesquiterpenes and alkaloids [6][7][8][9][10][11]. As part of our study of the family Annonaceae, we report here the isolation and the structural elucidation of a new monoterpene derivative together with four known partially and total acetylated tri-and tetrarhamnoside dodecanyl ether derivatives [12][13][14].…”