scholarly journals Chemical variability of essential oils from the leaves of Tridax procumbens Linn (Asteraceae) from five cities of Côte d’Ivoire

2020 ◽  
Vol 14 (5) ◽  
pp. 1843-1852 ◽  
Author(s):  
Aïssata Coulibaly ◽  
Yaya Soro ◽  
Sorho Siaka ◽  
Fatimata Nea ◽  
Zanahi Félix Tonzibo
Keyword(s):  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Biological Activities ◽  
Mass Spectrometry Analysis ◽  
Chemical Compositions ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Tridax Procumbens ◽  
Chemical Variability

Chemical variability of a plant from various continents or collected in different localities is well known and justifies its different biological activities. Thus, the present study was undertaken to evaluate the chemical variability of essential oils from leaves of Tridax procumbens Linn from five localities of Cote d'Ivoire. Essential oils have been extracted by hydrodistillation with yields varying from 0.077 to 0.079% depending on the locality. Gas chromatography and mass spectrometry analysis of essential oils showed a predominance of thymol (20.9 to 68.9%) in the oils from all the localities except that from Yamoussoukro which is of an α-acoradiene (28.9%) predominance. Several of the most important and variously distributed minor compounds consist of p-cymene (2.2 to 11.3%), β-caryophyllene (1.5 to 6.0%), β-selinene (1.8 to 10.0%), α-selinene (0 to 7.3%), elemol (0 to 16.0%), α-eudesmol (0 to 7.5%), 6,10,14-Trimethylpentadecan-2-one (0.9 to 7.2%) and phytol (0 to 7.2%). The comparative study of the chemical compositions of essential oils showed that thymol is a marker of the plant. Tridax procumbens acclimated in Côte d’Ivoire have been grouped into three chemotypes of thymol and other compounds.Keywords: Essential oils, Tridax procumbens, Chemical variability, Thymol, Chemical composition

scholarly journals Composition, Seasonal Variation, and Biological Activities of Lantana camara Essential Oils from Côte d’Ivoire

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2400 ◽  
Author(s):  
Fatimata Nea ◽  
Didjour Albert Kambiré ◽  
Manon Genva ◽  
Evelyne Amenan Tanoh ◽  
Esse Leon Wognin ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Biological Activities ◽  
Lantana Camara ◽  
Oil Composition ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Anti Inflammatory ◽  
Insecticidal Activities

This work aims to study the variations in the composition of Lantana camara leaf, flower, and stem essential oils over two years. L. camara organs were harvested in Bregbo (East Côte d’Ivoire) each month from June 2015 to June 2017. The essential oils were obtained by hydrodistillation and characterized by GC-MS and 13C NMR. Eighty-four compounds accounting for 84.4–99.1% of the essential oils have been identified. The essential oils hydrodistillated from L. camara are dominated by sesquiterpenes such as (E)-β-caryophyllene and α-humulene, which were found in all samples. Some monoterpenes such as thymol, sabinene, and α-pinene were also present. Statistical analysis (principal component analysis and clustering) revealed a high variability in essential oil composition between the different organs and also within the studied periods, as the thymol proportion was higher during flowering and fruiting months. In addition, the stem, flower, and fruit essential oils were more concentrated in thymol than the leaf essential oils. The proportions of (E)-β-caryophyllene and α-humulene were strictly inverted with the thymol proportion throughout the harvest period or vegetative cycle. The antioxidant, anti-inflammatory and insecticidal activities of leaves and flowers essential oils were also studied. Results showed that L. camara leaf and flower essential oils displayed high antioxidant, anti-inflammatory and insecticidal activities.

scholarly journals Composition and Chemical Variability of Essential Oils Isolated from Aerial Parts of Cassytha filiformis from Côte d'Ivoire

2018 ◽  
Vol 13 (2) ◽  
pp. 1934578X1801300
Author(s):  
Zana A. Ouattara ◽  
Nouho Sangaré ◽  
A. Janat Mamyrbekova-Bekro ◽  
Yves-Alain Békro ◽  
Pierre Tomi ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Aerial Parts ◽  
Côte D'ivoire ◽  
Chemical Variability ◽  
Germacrene D ◽  
Main Components ◽  
C Nmr

The essential oils isolated from aerial parts of Cassytha filiformis L. harvested in five locations of Côte d'Ivoire were analyzed by GC(RI), GC-MS and 13C-NMR. The oils were dominated by sesquiterpene derivatives and the content of the main components varied substantially from sample to sample: (E)-β-caryophyllene (1.5-34.9%), bicyclogermacrene (1.0-25.8%), α-humulene (0.5-22.0%), spathulenol (1.0-18.5%) and germacrene D (6.6-16.6%). Two compositions could be distinguished: (i) bicyclogermacrene, germacrene D, spathulenol (2/5 samples) and (ii), (E)-β-caryophyllene, α-humulene (3/5 samples).

scholarly journals Antioxidant and Lipoxygenase Inhibitory Activities of Essential Oils from Endemic Plants of Côte d’Ivoire: Zanthoxylum mezoneurispinosum Ake Assi and Zanthoxylum psammophilum Ake Assi

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2445 ◽  
Author(s):  
Tanoh ◽  
Nea ◽  
Kemene ◽  
Genva ◽  
Saive ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Biological Activities ◽  
Radical Scavenging ◽  
Cote D’Ivoire ◽  
Antioxidant Power ◽  
Côte D'ivoire ◽  
Inhibitory Activities ◽  
First Time

Zanthoxylum mezoneurispinosum Ake Assi and Zanthoxylum psammophilum Ake Assi are species endemic to Côte d’Ivoire. In this study, we determined, for the first time, the composition and biological activities of essential oils obtained from each of these plants. Essential oils were obtained by hydrodistillation from different organs of each plant with a Clevenger-type apparatus and analyzed by gas chromatography–mass spectrometry (GC-MS). Thirty-four components, accounting for more than 99.9% of the overall composition, were identified in the oils. The Z. psammophilum leaf and trunk bark oils exhibited two unusual methylketones, undecan-2-one and tridecan-2-one, whereas the root oil was rich in thymol and sesquiterpenoids. The Z. mezoneurispinosum leaf and trunk bark oils were rich in monoterpenoids, whereas sesquiterpenoids were predominant in the root oil. These samples produced, for the first time, some new chemical profiles of essential oils. The oils’ antioxidant activities were determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity and ferric reducing antioxidant power (FRAP) assays. The results showed that the essential oil isolated from roots of Z. mezoneurispinosum had the highest antioxidant activity, which is in accordance with the high thymol content of that oil. We also determined the lipoxygenase inhibitory activities of the essential oils. The results showed that all of the tested oils displayed high and close lipoxygenase inhibitory activities.

scholarly journals Analyse Qualitative Et Quantitative Des Alcaloïdes Pyrrolizidiniques Chez Quelques Asteraceae, Boraginaceae Et Leguminosae Utilisées En Médecine Traditionnelle En Côte d’Ivoire

2017 ◽  
Vol 13 (12) ◽  
pp. 70
Author(s):  
Kandé Brahima ◽  
Koné Mamidou Witabouna
Keyword(s):  
Medicinal Plants ◽  
Cote D'ivoire ◽  
Trace Amount ◽  
Pyrrolizidine Alkaloids ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Tridax Procumbens ◽  
Significant Difference ◽  
Heliotropium Indicum

Pyrrolizidine Alkaloids (PAs) are toxic for human and livestock. Several outbreaks in human intoxications were reported worldwide. This study aimed at assessing the presence and quantifying the PAs in some Asteraceae, Boraginaceae and Leguminosae used in traditional medicine in Côte d'Ivoire. TLC detection with Ehrlich reagent (method of Mattocks) and spectrophotometric dosage were used to analyze 21 plants species. All the studied plants showed at least trace amount of PAs except Caesalpinia bonduc, Parkia filicoidea and Pilostigma thonningii. The contents obtained ranged between 0.261 and 1.518 mg/ml. However, for the majority of the studied plant species, there was a significant difference between aqueous and methanol extracts. The richest species were Heliotropium indicum, Tridax procumbens and Vernonia colorata. The presence of PAs in the studied plants is an indication of people exposure to probable toxicity. This raises the need for an evaluation of the risk related to the consumption of such medicinal plants in Côte d'Ivoire.

scholarly journals Monoterpene hydrocarbons, major components of the dried leaves essential oils of five species of the genus Eucalyptus from Cote d’Ivoire

2012 ◽  
Vol 04 (02) ◽  
pp. 106-111 ◽  
Author(s):  
Kanko Coffi ◽  
Kone Soleymane ◽  
Ramiarantsoa Harisolo ◽  
Tue Bi Balo ◽  
Chalchat Jean Claude ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Monoterpene Hydrocarbons ◽  
Genus Eucalyptus

scholarly journals Biological Control of Helminthosporium mays Responsible of Maize (Zea mays L.) Helminthosporiosis through the Application of Essential Oils of Eucalyptus citriodora and Ocimum gratissimum in Côte d'Ivoire

2021 ◽  
Vol 10 (7) ◽  
pp. 642-654
Author(s):  
Coulibaly Klotioloma Ouattara Adama ◽  
Soro Sibirina Gogbe Françoise ◽  
N’guessan Walet Pierre Acka Kotaix ◽  
Kouame Norbert Tahi Mathias ◽  
Guiraud Brigitte Assi Maryse ◽  
...  
Keyword(s):  
Biological Control ◽  
Zea Mays ◽  
Essential Oils ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Zea Mays L ◽  
Eucalyptus Citriodora ◽  
Cote D’Ivoire ◽  
Ocimum Gratissimum ◽  
Côte D'ivoire

A new chemotype of Lantana rhodesiensis Moldenke essential oil from Côte d’Ivoire: Chemical composition and biological activities

2019 ◽  
Vol 141 ◽  
pp. 111766 ◽  
Author(s):  
Fatimata Nea ◽  
Evelyne Amenan Tanoh ◽  
Esse Leon Wognin ◽  
Tierry Kenne Kemene ◽  
Manon Genva ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Biological Activities ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

Chemical Variability of the Leaf Essential Oil ofXylopia aethiopica(Dunal) A.Rich. from Côte d'Ivoire

2012 ◽  
Vol 9 (12) ◽  
pp. 2802-2809 ◽  
Author(s):  
Thierry Acafou Yapi ◽  
Jean Brice Boti ◽  
Coffy Antoine Ahibo ◽  
Ange Bighelli ◽  
Vincent Castola ◽  
...  
Keyword(s):  
Essential Oil ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Chemical Variability ◽  
Leaf Essential Oil

Composition and Intraspecific Chemical Variability of Leaf Essential Oil of Laggera pterodonta from Côte d'Ivoire

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Didjour Albert Kambiré ◽  
Jean Brice Boti ◽  
Thierry Acafou Yapi ◽  
Zana Adama Ouattara ◽  
Mathieu Paoli ◽  
...  
Keyword(s):  
Essential Oil ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Chemical Variability ◽  
Leaf Essential Oil
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