Publications (191)
ARTICLE
Quality characteristics and thermal behavior diversity of traditional crude shea (Vitellaria paradoxa Gaertn) butter from Burkina Faso
Bertrand W. F. Goumbri Roland Marini Djang’eing’a, Rasmané Semdé Ange Mouithys-Mickalad Abdoul Karim Sakira , Gérard B. Josias Yaméogo Touridomon Issa Somé Sabine Danthine
The aim of this study was to establish a comparative analysis of the physicochemical and the thermal behavior
(solid fat content (SFC) by p-NMR, and by differential scanning calorimetry (DSC) of shea butter (SB) from Burkina
Faso, related to different traditional extraction processes. Thirty-seven samples obtained from different localities(...)
Shea butter, Extraction process, Solid fat content, Differential scanning calorimetry, Chemical quality
ARTICLE
Manufacture of Industrial refractory crucibles based on clays from Burkina Faso
Kassoum Barry, Youssouf Sawadogo , Moustapha Sawadogo, Brahima Sorgho, Mohamed Seynou, Boubié Guel, Philippe Blanchart, Lamine Zerbo
In Burkina Faso, one of the three largest gold producers in West Africa, foundry activity is often paralyzed when basic equipment such as crucibles and cups are not available or should be imported. However, previous studies have shown the availability of kaolinite-rich clay resources that could be used for the local manufacture of silico-alumi(...)
Refractory, Foundry Activity, Compressive Strength, Chemical Resistance
ARTICLE
Study of thermal shock and chemical durability of a porcelain formulated from local raw materials from Burkina Faso
Youssouf Sawadogo, Moustapha Sawadogo, Issiaka Sanou, Joël Samba, Mohamed Seynou, Philippe Blanchart, Lamine Zerbo
This work evaluates the resistance to chemical attack and thermal shock of porcelain formulated from local raw materials from Burkina Faso for their validation in real use. A kaolinitic clay, a pegmatite and sand were used for the formulation of porcelain tiles. Some samples were shaped by casting into porous molds and sintered at a temperatur(...)
Chemical attack, Thermal shock, Behavior Porcelain, raw materials
ARTICLE
Microstructural, physical, and mechanical characteristics of adobes amended with cement‑metakaolin mixtures
Issiaka Sanou · Moussa Ouedraogo, · Halidou Bamogo · Namory Meité · Mohamed Seynou · Jean‑Emmanuel Aubert · Younoussa Millogo
The objective of this study was to improve the physical and mechanical properties of adobes reinforced by cementmetakaolin mixtures. For this purpose, a raw clayey material from Burkina Faso consisting of kaolinite (62 wt%), quartz (30 wt%), and goethite (6 wt%) and belonging to the category of sandy-silty soils with medium plasticity has bee(...)
Cement · Metakaolin · Adobe · Calcium silicate hydrates · Microstructure · Physical and mechanical properties
ARTICLE
Total Alkaloid content and In vitro Antiplasmodial activity of Grangea maderaspatana collected from Burkina Faso
Yougoubo Abdoulaye, Dabiré Constantin M., Sore Harouna, Bationo K. Remy, Ganame Arouna, Sawadogo Assétou, Roamba Noëlle Edwige, Bazié Benjamin, Kabore S. Dominique, Koala Moumouni, Palé Eloi, Nebie C. H. Roger, Nacro Mouhoussine.
Effective management of malaria remains a major concern for the scientific community mainly due to the resistance of Plasmodium falciparum to the common antimalarials. Many studies are conducted to identify plants that can fight against this disease. This work aimed to contribute to a better knowledge of antiplasmodial activity of different pa(...)
Grangea maderaspatana, Antiplasmodial activity, Plasmodium falciparum, Total alkaloid content.
ARTICLE
Indirect Electroanalysis of 3-Methyl-4-Nitrophenol in Water Using Carbon Fiber Microelectrode Modified with Nickel Tetrasulfonated Phthalocyanine Complex
Yibor Fabrice Roland Bako, Serge Foukmeniok Mbokou, Boukaré Kaboré, Issa Tapsoba, Maxime Pontié
Electrochemical detection of 3-methyl-4-nitrophenol (MNP) in direct phenol oxidation occurs at high potentials and generally leads to progressive passivation of the electrochemical sensor. This study describes the use of a carbon
fiber microelectrode modified with a tetrasulfonated nickel phthalocyanine complex for the detection of MNP at a(...)
3-Methyl-4-Nitrophenol, Carbon Fiber Microelectrode, Nickel Tetrasulfonated Phthalocyanine, Indirect Electroanalysis, Square Wave Voltammetry
ARTICLE
Synthesis, Characterization, Hirshfeld Surface Analysis and Quantum Chemical Calculations of 2-oxo-2HChromen-6-yl 4-Methoxybenzoate
Zakaria Koulabiga, Kouadio Honoré Yao, Akoun Abou, Abdoulaye Djandé, Michel Giorgi, Stéphane Coussan
This article deals with a combined experimental and computational study of a 6-substituted coumarin derivative, namely, 2-oxo-2H-chromen-6-yl 4-methoxybenzoate (I). The compound was synthetized by O-acylation of 6-hydroxycoumarin with 4-methoxybenzoyl chloride in the presence of tetrahydrofuran as a solvent and triethylamine as a base. The cry(...)
6-substituted coumarin derivative, Spectroscopic analysis, Crystal structure, Conformational analysis, Hirshfeld surface analysis
ARTICLE
Identification des interactions flavonoïde-flavonoïde par évaluation in vitro du pouvoir antioxydant de mélanges binaires
HIEN Nabomo, OUEDRAOGO Jean Claude W., BONZI-COULIBALY Yvonne L.
Les flavonoïdes co-présents dans un extrait de plante créent entre eux des interactions moléculaires. L’investigation de ces interactions flavonoïde-flavonoïde a été menée par l’évaluation in vitro de l’activité antioxydante des mélanges binaires de neuf (09) flavonoïdes préparés dans du méthanol. La capacité antioxydante a été évaluée par deu(...)
Composés phénoliques, Interaction, Capacité antiradicalaire, Réduction, Combinaison binaire
ARTICLE
Etude du comportement électrochimique des flavonoïdes dans l’extrait à l’acétate d’éthyle de Euphorbia hirta L.
Yssouf Karanga, Amidou Tall, Yibor Fabrice Roland Bako, Ousmane Ilboudo, Issa Tapsoba
Les extraits de plante sont des mélanges complexes de composés tels que les flavonoïdes dont l’identification nécessite des méthodes conventionnelles souvent sophistiquées et coûteuses. Il est donc nécessaire de développer des méthodes plus simples et abordables en termes de faible coût et de facilité de mise en œuvre pour l’identification de(...)
Voltammétrie cyclique, identification, métabolites secondaires
ARTICLE
Molecular imprinted polymer modified carbon ultramicroelectrode for a selective detection of 3‑methyl‑4‑nitrophenol and its bioremediation in a fungal microbial fuel cell
Yibor Fabrice Roland Bako, Jean-Philippe Théodore Silga, Serge Mbokou Foukmeniok, Maxime Pontié
In the present work, we have developed for the first time a carbon ultramicroelectrode modified by a molecular imprinted polymer (MIP) for selective determination of 3-methyl-4-nitrophenol (MNP) in aqueous media. The polymeric film based on a non-covalent approach was obtained by electropolymerization of ortho-phenylenediamine in the presence(...)
3-methyl-4-nitrophenol (MNP), Molecular Imprinted Polymer (MIP), Carbon microelectrode, Microbial biofuel cell
ARTICLE
Leaching of Base Metals in Pcbs and Copper Cementation by Iron Powder
Francis O. Konatéb, Véronique Vitry , Arsène H. Yonli
When dealing with electronic waste, printed circuit boards (PCBs) are some of the most important materials in terms of recovery possibilities, because of their high content of precious metals and base metals, notably copper ( 20% w/w), in addition to organic resins and ceramic materials. Efficient hydrometallurgical metals recovery from electr(...)
Mots clés non renseignés
COMMUNICATION
Preparation and characterization of foamed concrete using a foaming agent and local mineral resources from Burkina Faso
Alassane Compaoré, Moustapha Sawadogo, Youssouf Sawadogo, Moussa Ouedraogo, Brahima Sorgho, Mohamed Seynou, Philippe Blanchart, Lamine Zerbo
Lightweight-foamed concretes (LFC) were formulated from cement, natural sand, and foam from a
foaming agent with densities of 600 and 700 kg/m3. The identified mineral phases in the cement are
alite, belite, celite, ferrite, calcite, and gypsum. The obtained foamed concretes have a porosity varying
from 29.17 to 37.14 vol%, a thermal conduc(...)
Foamed concretes, Thermal conductivity, Porosity, Foaming agent, Mechanical strength
ARTICLE
Optimization of the Extraction of Phenolic Compounds from Eucalyptus camaldulensis Dehnh Leaves Using Response Surface Methodology
OUATTARA Bassalia, SEMAY Irène, OUEDRAOGO Jean Claude W., GERBAUX Pascal, OUEDRAOGO Igor W. K.
In this work, the optimization of phenolic compounds extraction from Eucalyptus camaldulensis leaves was carried out by applying a response surface methodology (RSM) approach. The influence of different parameters i.e., the liquid-to-solid ratio, the temperature and the extraction time have been jointly tested by maceration in an ethanol–water(...)
Eucalyptus camaldulensis, RSM, Optimization, Phenolic compounds, LC-MS analysis
ARTICLE
Optimization of the Extraction of Phenolic Compounds from Eucalyptus camaldulensis Dehnh Leaves Using Response Surface Methodology
OUATTARA Bassalia, SEMAY Irène, OUEDRAOGO Jean Claude W., GERBAUX Pascal, OUEDRAOGO Igor W. K.
In this work, the optimization of phenolic compounds extraction from Eucalyptus camaldulensis leaves was carried out by applying a response surface methodology (RSM) approach. The influence of different parameters i.e., the liquid-to-solid ratio, the temperature and the extraction time have been jointly tested by maceration in an ethanol–water(...)
Eucalyptus camaldulensis, RSM, Optimization, Phenolic compounds, LC-MS analysis
ARTICLE
Synthèse et étude des propriétés physicochimiques d’un nouveau complexe de la phtalocyanine de zinc substitué à la périphérie : [ZnPc(CO2H)4(COATP)4]
Lassané Tarpaga, Seydou Ouédraogo, Wend-kuny Guy Aristide Nitiema, Bintou Sessouma, Mabinty Bayo-Bangoura, Catherine Amiens, Jérôme Esvan, Karifa Bayo
Nous présentons dans ce travail, la synthèse et la caractérisation d'un nouveau complexe β-octa-substitué de la phtalocyanine de zinc à partir du complexe [ZnPc(CO2H)8]. L'analyse élémentaire confirme l’obtention d’un composé de formule C64H36N12O12S4Zn avec une bonne pureté. Les spectres de spectrométries vibrationnelles (IR et Raman) mettent(...)
Phtalocyanine de zinc octa-substituée, acide carboxylique, 4-aminothiophénol, spectrométrie vibrationnelle, RMN 13C