Characterization of Essential Oils of Xylopia aethiopica (Dunal) A. Rich for Afforestation of the Coastal Savanna at Pointe-Noire (Congo-Brazzaville)
R. Kama Niamayoua,Thomas Silou,Jean Bruno Bassiloua,M. Diabangouaya,Aubin Nestor Loumouamou,J.C. Chalchat +5 more
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The essential oil from fruits, leaves and stem bark of Xylopia aethiopica of Congo-Brazzaville was obtained by steam distillation and analyzed by CG on two columns with different polarities (polar and apolar) and by CG/SM as discussed by the authors.Abstract:
The essential oil from fruits, leaves and stem bark of Xylopia aethiopica of Congo-Brazzaville was obtained by steam distillation and analyzed by CG on two columns with different polarities (polar and apolar) and by CG/SM. The essential oil from fruits was characterized by the presence of three constituents at levels of at least 10%. These were pinenes (alpha-+beta-) as major components (17%), 1, 8-cineole (13.3%) and sabinene (10%), all monoterpene hydrocarbons. The three most abundant oxygenated monoterpenes were trans-pinocarveol (8.2%), myrtenal (6.3%) and myrtenol (6.2%). The essential oil from leaves was characterized by the presence of pinenes (alpha-+beta-) as major components (39-60%). Sesquiterpenes came second, with caryophyllene the most abundant (6-18%). Oil from stem bark was made up of pinenes (27-57%), with beta-cubebene (11-14%) in second position and transpinocarveol (6%) and myrtenal (5%) jointly in third position.read more
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Characterization of essential oils from the leaves of the Genus Daphnandra (Atherospermataceae)
TL;DR: The chemical profile of the essential oils from leaves of the six species of the Australian genus Daphnandra have been characterized and the oil yield of all species was low.
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Safety assessment of essential oils from Xylopia aethiopica (Dunal) fruit from Nigeria
TL;DR: This study demonstrated the tolerability of XAEO administered daily for 28 days up to 450 mg/kg dose by evaluating the safety of essential oils from X. aethiopica fruit by acute and sub-acute oral toxicity studies in experimental rodents.
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Manuel de botanique forestiere afrique tropicale: Tome 2A families 1 ere partie
F. N. Hepper,R. Letouzey +1 more
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Simulation of the Essential oil extraction kinetics of Xylopia aethiopica fruits from Congo Brazzaville. Fick diffusion, Peleg sorption and Michaelis-Menton enzymatic models
TL;DR: In this article , the hydrodistillation extraction kinetics of Xylopia aethiopica fruit essential oil were modeled according to the phenomenological approach applied to Fick diffusion model, Peleg sorption model and Michaelis-Menton enzymatic model.
References
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A generalization of the retention index system including linear temperature programmed gas-liquid partition chromatography.
H. van Den Dool,P. Dec. Kratz +1 more
TL;DR: The equation given by Kovats for the calculation of the retention index in case of isothermal operation is transformed to a more general form to include also the case of linear temperature programmed operation and gives the same retention index for both ways of operation.
Book
Identification of essential oil components by gas chromatography/quadrupole mass spectroscopy
TL;DR: In this paper, the authors show that a compound is identified by a chromatographic peak that has a retention-time in the range of 5589 to 562 min-time.
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Composition and antioxidant activity of the essential oils of Xylopia aethiopica (Dun) A. Rich. (Annonaceae) leaves, stem bark, root bark, and fresh and dried fruits, growing in Ghana.
Anastasia Karioti,Dimitra Hadjipavlou-Litina,Merlin L. K. Mensah,Theophilus C. Fleischer,Helen Skaltsa +4 more
TL;DR: The chemical composition of the essential oils obtained from the leaves, the barks of the stem and the root, as well as from the fresh and dried fruits of Xylopia aethiopica, growing in Ghana, was investigated by gas chromatography/mass spectrometry analyses and beta-Pinene was predominant in all cases.
Journal ArticleDOI
Composition and anti-plasmodial activities of essential oils from some Cameroonian medicinal plants.
Fabrice Fekam Boyom,Vincent Ngouana,Paul Henri Amvam Zollo,Chantal Menut,Jean Marie Bessière,Jiri Gut,Philip J. Rosenthal +6 more
TL;DR: Five essential oils extracted from the Cameroonian plants were evaluated in regard to their anti-plasmodial activity against the W2 strain of Plasmodium falciparum, and the most effective was the oil of Hexalobus crispiflorus, with an IC50 of 2 microg/ml.