Publications (192)
ARTICLE
Some Aspects of the Reactivity of 3-acyl-4-hydroxycoumarins
Youssoufou Bakouan; Bintou Sessouma; Têeda Hamidou Ganamé; Lassané Tarpaga; Jules Yoda; Karifa Bayo
Coumarins are the most important oxygenated heterocyclic of natural compounds. They are widely used as raw materials in many areas such as agrochemical, perfume, pharmaceutical industries. They therefore have several physical, chemical and biological properties. In order to enlarge this family of compounds and elucidate almost all of its prope(...)
4-hydroxycoumarins, C-acylation, Acyl-hydroxycoumarins, Heterocyclic Compoun
ARTICLE
Usability of a Natural Tuff as Admixture in Clinker and Its Influence on the Physico-Chemical and Mechanical Properties of Mortar
Lamine Zerbo, Moustapha Sawadogo, Youssouf Sawadogo, Salfo Salogo, Moussa Ouedrago, Mohamed Seynou, Gisèle Lecomte-Nana, Philippe Blanchart
The mechanical and physical properties of TUFF from Korsimoro (Burkina Faso) were investigated for use as admixtures in clinker to make pozzolanic cement. Six different cement mortar specimens were prepared by replacing clinker with TUFF in ratios of 0%, 5%, 8%, 10%, 13% and 15% by mass. The flexural and compressive strengths of the specimens(...)
Pozzolan, Tuff, Admixture, Cement, Mortar
ARTICLE
3-benzoyl-4-hydroxy-coumarine :Synthèses et caractérisation d’une série de nouveaux composés
Youssoufou Bakouan; Bintou Sessouma; Lassané Tarpaga; Jules Yoda; Abdoulaye Djandé; Karifa Bayo
Nous avons synthétisé une série de 3-acyl-4-hydroxycoumarines par O-acylation de la 4-hydroxycoumarine suivie d’un réarrangement en C-acylation : 3-(4-méthylbenzoyl)-4-hydroxycoumarine (a), 3-(4-tertiobutylbenzoyl) -4- hydroxycoumarine (b), 3-(4-chlorobenzoyl)-4-hydroxycoumarine (c) et 3-(4-nitrobenzoyl)-4-hydroxycoumarine (d). Les compos(...)
3-acyl-4-hydroxycoumarines, molécule bioactive, RMN 13C 1H
ARTICLE
Phytochemical Screening and Antioxidant and Cytotoxic Effects of Acacia macrostachya
1. Ganamé Teeda Hamidou, Karanga Yssouf, Tapsoba Issa
Acacia macrostachya is used in Burkina Faso folk medicine for the treatment of inflammation
and cancer. The purpose of this study was to evaluate the antioxidant and cytotoxic effects of this
plant. The cytotoxic effects of root (dichloromethane B1 and methanol B2) and stem (dichloromethane
B3 and methanol B4) bark extracts of A. macrostach(...)
Acacia macrostachya; antioxidant; cytotoxicity; cancer; leukemia; lymphoma
ARTICLE
Phytochemical Screening and Antioxidant and Cytotoxic Effects of Acacia macrostachya
Ganamé Teeda Hamidou, Karanga Yssouf, Tapsoba Issa, Dicato M., Diederich F.M., Cerella C. and Sawadogo W.R
Acacia macrostachya is used in Burkina Faso folk medicine for the treatment of inflammation and cancer. The purpose of this study was to evaluate the antioxidant and cytotoxic effects of this plant. The cytotoxic effects of root (dichloromethane B1 and methanol B2) and stem (dichloromethane B3 and methanol B4) bark extracts of A. macrostachya(...)
Mots clés non renseignés
ARTICLE
Méthode de quantification des Cochloxanthines, composés antiplasmodiques, par spectrophotométrie
TRAORE COULIBALY Maminata, DAKUYO Zéphirin Pando, BRAGAGNA Laura, STOLZE Klaus, NOVAK Johannes, YODA Jules, OUEDRAOGO Jean Claude W., YOUGBARE Sibidou, TRAORE Ousmane, TINTO Halidou
La présente invention intitulée « méthode de quantification des cochloxanthines, composés antiplasmodiques, par spectrophotométrie » concerne un procédé d'analyse quantitatif des cochloxanthines contenues dans les rhizomes de Cochlospermum Planchonii et de Cochlospermum tinctorium par spectrophotométrie UV-VIS. Le procédé consiste en l'extract(...)
Mots clés non renseignés
COMMUNICATION
Pollution chimique des eaux de surface liée aux activités agricoles autour des retenues d’eaux au Nord du Burkina Faso
S. B. Maïga-Yaleu, A. D. H., B. Guel
L’une des préoccupations mondiales en matière environnementale est la pollution des eaux de surface par les activités agricoles. En effet, dans le secteur agricole, de grandes quantités de produits chimiques tels que les engrais, les pesticides sont utilisés pour améliorer le rendement agricole et lutter contre les espèces nuisibles aux plante(...)
intrant agricole, Pollution, qualité de l’eau
ARTICLE
Synthesis, Characterization, Crystal Structure and Quantum Chemical Calculations of 2-oxo-2H-chromen-3-yl Acetate
Akoun Abou, Siaka Sosso, Affiba Florance Kouassi, Thouakesseh Jeremie Zoueu, Abdoulaye Djande, Olivier Ouari
This paper is focused on a combined experimental and theoretical study of 3-substituted coumarin derivative, the 2-oxo-2H-chromen-3-yl acetate (I). The compound was synthesized by reacting chroman-2,3-dione and acetic anhydride in dried diethyl ether in the presence of dried pyridine and crystallized in the orthorhombic crystal system with Pbc(...)
3-substituted Coumarin Derivative, C—H…O Hydrogen Bonds, Hirshfeld Surface Analysis, Quantum Chemical Computations
ARTICLE
SOLID-STATE SYNTHESIS AND PHYSICO-CHEMICAL CHARACTERIZATION OF MODIFIED SMECTITES USING NATURAL CLAYS FROM BURKINA FASO
Issaka Garikoé, Brahima Sorgho, Boubié Guel and Ingmar Persson
Solid-state intercalation was applied to prepare organo-smectites using cationic surfactants and natural clays containing smectite at various surfactant/smectite ratios. The surfactants enter the interlayers of smectites causing a swelling of the clays. The used clays were collected in Siétougou and Diabari villages located in the eastern part(...)
Smectite, Organo-smectite, Surfactant
ARTICLE
Formulation of clay refractory bricks: influence of the nature of chamotte and the alumina content in the clay
Moustapha Sawadogo, Mohamed Seynou, Lamine Zerbo, Brahima Sorgho, Gisèle Laure Lecomte-Nana, Philippe Blanchart, Raguilnaba Ouédraogo
Abstract: Refractory materials from kaolinitic clays and clay chamotte or quartz were studied to increase the refractoriness
under load at temperature above 1300°C. Two different clays mined in Burkina Faso were used and chamotte grains were
obtained by preliminary firing a local clay. Fired materials at 1350-1400°C present a typical granu(...)
Clay, Chamotte, Mullite
ARTICLE
Variation spatiale des ions majeurs en solution sous l’impact des croûtes de surface dans le Sahel du Burkina Faso
Stéphanie Batchakoue Maïga-Yaleu, HammaYacouba
L’objectif de cette étude est d’évaluer le rôle des croûtes de surface du sol sur les pertes en matières dissoutes par les eaux de ruissellement. Les données ont été collectées durant 3 années consécutives sur des parcelles de 1 m², 50 m² et 150 m² installées sur les croûtes structurale (STRU), d’érosion (ERO), gravillonnaire (GRAV) et de dess(...)
Érosion chimique, matière dissoute, croûtes de surface, Sahel
ARTICLE
Removal of bisphenol A by adsorption on organically modified clays from Burkina Faso
Issaka Garikoé , Brahima Sorgho , Adama Yaméogo , Boubié Guel & Dickson Andala
Four cationic surfactants with various length and number of long alkyl chains such as dodecyltrimethylammonium, tetradecyltrimethyl-ammonium, hexadecyltrimethylammonium and didodecyldimethyl-ammonium were intercalated at different concentrations into two natural clays from Burkina Faso via solid-state reaction. Each organoclay was used to expl(...)
Mots clés non renseignés
ARTICLE
Development of a green HPLC method for the analysis of artesunate and amodiaquine impurities using Quality by Design
Moussa Yabre, Ludivine Ferey, Touridomon Issa Some, Guilhem Sivadier and Karen Gaudin
Greening analytical methods has become of great interest in the field of pharmaceutical analysis to protect both the operators’ health and the environment. In this work, an innovative methodology combining Quality-by-Design (QbD) and Green Chemistry principles was followed to develop a single, green and robust RP-HPLC method for the quantitati(...)
Mots clés non renseignés
ARTICLE
Green Analytical Methods of Antimalarial Artemether-Lumefantrine Analysis for Falsification Detection Using a Low-Cost Handled NIR Spectrometer with DD-SIMCA and Drug Quantification by HPLC
Moussa Yabré , Ludivine Ferey , Abdoul Karim Sakira , Camille Bonmatin , Clotilde Fauré , Touridomon Issa Somé and Karen Gaudin
Abstract: Two green analytical approaches have been developed for the analysis of antimalarial
fixed dose tablets of artemether and lumefantrine for quality control. The first approach consisted
of investigating the qualitative performance of a low-cost handheld near-infrared spectrometer
in combination with the principal component analysis(...)
Mots clés non renseignés
ARTICLE
Chemical Profil and Anti-termite Activity of Hydrodistillation Residues From Three Aromatic Plants Acclimated in Burkina Faso
Assétou Sankara, Jean Claude W. Ouédraogo, Luc Pignolet, Marie-France Thévenon & Yvonne L. Bonzi-Coulibaly
Distillation process of aromatic plants produces a considerable amou t of solid residues, which are rich in secondary métabolites known as bioactive compounds. In this context, residues from hydrodistillation of selected Aromatic plants such as Mentha piperita L., Cymbopogon citratus Stapf and Eucalyptus camaldulensis Dehnh, have been studied(...)
Mots clés non renseignés