PSR

The risks due to climate change heavily affect the Ivorian agriculture sector. This study aims to analyse the influence of extreme climatic parameters on sugar cane yield in the sugar complexes of Ferkessedougou. The methodological approach is based on redefining the agricultural season using the R-Instat software, and the correlation between extreme climatic parameters and sugar cane production is determined through statistical tests. The start date of the rainy season is on average May 28 in Ferkessedougou and June 4 in Korhogo, with standard deviations of 11 to 18 days. Early starts appear...

The risks due to climate change heavily affect the Ivorian agriculture sector. This study aims to analyse the influence of extreme climatic parameters on sugar cane yield in the sugar complexes of Ferkessedougou. The methodological approach is based on redefining the agricultural season using the R-Instat software, and the correlation between extreme climatic parameters and sugar cane production is determined through statistical tests. The start date of the rainy season is on average May 28 in Ferkessedougou and June 4 in Korhogo, with standard deviations of 11 to 18 days. Early starts appear...

The risks due to climate change heavily affect the Ivorian agriculture sector. This study aims to analyse the influence of extreme climatic parameters on sugar cane yield in the sugar complexes of Ferkessedougou. The methodological approach is based on redefining the agricultural season using the R-Instat software, and the correlation between extreme climatic parameters and sugar cane production is determined through statistical tests. The start date of the rainy season is on average May 28 in Ferkessedougou and June 4 in Korhogo, with standard deviations of 11 to 18 days. Early starts appear...

La zone nord de Toumodi est située dans la partie sud du sillon de Toumodi-Fètêkro, au centre de la Côte d’Ivoire. Cette zone étant fortement latéritisée, une cartographie à partir du régolithe en vue de l’amélioration des connaissances de la géologie de la partie sud du sillon de Toumodi-Fètêkro a été initiée. Elle s’est faite grâce à la télédétection et aux données de sondage réalisés dans la zone. Ainsi, il ressort de cette étude que le régolithe de la zone d’étude provient de l’altération supergène des différentes formations géologiques observées et se caractérise par un profond profil d'a...

La zone nord de Toumodi est située dans la partie sud du sillon de Toumodi-Fètêkro, au centre de la Côte d’Ivoire. Cette zone étant fortement latéritisée, une cartographie à partir du régolithe en vue de l’amélioration des connaissances de la géologie de la partie sud du sillon de Toumodi-Fètêkro a été initiée. Elle s’est faite grâce à la télédétection et aux données de sondage réalisés dans la zone. Ainsi, il ressort de cette étude que le régolithe de la zone d’étude provient de l’altération supergène des différentes formations géologiques observées et se caractérise par un profond profil d'a...

La zone nord de Toumodi est située dans la partie sud du sillon de Toumodi-Fètêkro, au centre de la Côte d’Ivoire. Cette zone étant fortement latéritisée, une cartographie à partir du régolithe en vue de l’amélioration des connaissances de la géologie de la partie sud du sillon de Toumodi-Fètêkro a été initiée. Elle s’est faite grâce à la télédétection et aux données de sondage réalisés dans la zone. Ainsi, il ressort de cette étude que le régolithe de la zone d’étude provient de l’altération supergène des différentes formations géologiques observées et se caractérise par un profond profil d'a...

La zone nord de Toumodi est située dans la partie sud du sillon de Toumodi-Fètêkro, au centre de la Côte d’Ivoire. Cette zone étant fortement latéritisée, une cartographie à partir du régolithe en vue de l’amélioration des connaissances de la géologie de la partie sud du sillon de Toumodi-Fètêkro a été initiée. Elle s’est faite grâce à la télédétection et aux données de sondage réalisés dans la zone. Ainsi, il ressort de cette étude que le régolithe de la zone d’étude provient de l’altération supergène des différentes formations géologiques observées et se caractérise par un profond profil d'a...

La zone nord de Toumodi est située dans la partie sud du sillon de Toumodi-Fètêkro, au centre de la Côte d’Ivoire. Cette zone étant fortement latéritisée, une cartographie à partir du régolithe en vue de l’amélioration des connaissances de la géologie de la partie sud du sillon de Toumodi-Fètêkro a été initiée. Elle s’est faite grâce à la télédétection et aux données de sondage réalisés dans la zone. Ainsi, il ressort de cette étude que le régolithe de la zone d’étude provient de l’altération supergène des différentes formations géologiques observées et se caractérise par un profond profil d'a...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

AbstractThis study was conducted to first determine the phenolic compounds and then the antioxidant activity of black plum fruit pulp and peel. For these characterisations, classic methods were used. Moreover, the ability of extracts to scavenge free radicals and their reducing power were measured according to 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods, respectively. The total polyphenol, flavonoid and anthocyanin contents of pulp and peel ranged from 202.51 ± 4.19 to 463.45 ± 6.85 mg gallic acid equivalent (GAE)/100 g of Dry Weight (DW), 75.71 ± ...

This paper presents the recognition of “Baoule” spoken sentences, a language of C?te d’Ivoire. Several formalisms allow the modelling of an automatic speech recognition system. The one we used to realize our system is based on Hidden Markov Models (HMM) discreet. Our goal in this article is to present a system for the recognition of the Baoule word. We present three classical problems and develop different algorithms able to resolve them. We then execute these algorithms with concrete examples.

This paper presents the recognition of “Baoule” spoken sentences, a language of C?te d’Ivoire. Several formalisms allow the modelling of an automatic speech recognition system. The one we used to realize our system is based on Hidden Markov Models (HMM) discreet. Our goal in this article is to present a system for the recognition of the Baoule word. We present three classical problems and develop different algorithms able to resolve them. We then execute these algorithms with concrete examples.

This paper presents the recognition of “Baoule” spoken sentences, a language of C?te d’Ivoire. Several formalisms allow the modelling of an automatic speech recognition system. The one we used to realize our system is based on Hidden Markov Models (HMM) discreet. Our goal in this article is to present a system for the recognition of the Baoule word. We present three classical problems and develop different algorithms able to resolve them. We then execute these algorithms with concrete examples.

This paper presents the recognition of “Baoule” spoken sentences, a language of C?te d’Ivoire. Several formalisms allow the modelling of an automatic speech recognition system. The one we used to realize our system is based on Hidden Markov Models (HMM) discreet. Our goal in this article is to present a system for the recognition of the Baoule word. We present three classical problems and develop different algorithms able to resolve them. We then execute these algorithms with concrete examples.

This paper presents the recognition of “Baoule” spoken sentences, a language of C?te d’Ivoire. Several formalisms allow the modelling of an automatic speech recognition system. The one we used to realize our system is based on Hidden Markov Models (HMM) discreet. Our goal in this article is to present a system for the recognition of the Baoule word. We present three classical problems and develop different algorithms able to resolve them. We then execute these algorithms with concrete examples.

AbstractWe report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based on grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles on P25-TiO2 nanoparticles and HAP obtained by co-precipitation of salts. The 5-nm oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. The photocatalytic test of ethylene degradation, in a continuous-flow fixed-bed reactor, showed an increase of the photocatalytic yield for the composite photocatalysts with an addition of HAP. This result was interpreted by a synergy between adsorption and photo-oxidat...

AbstractWe report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based on grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles on P25-TiO2 nanoparticles and HAP obtained by co-precipitation of salts. The 5-nm oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. The photocatalytic test of ethylene degradation, in a continuous-flow fixed-bed reactor, showed an increase of the photocatalytic yield for the composite photocatalysts with an addition of HAP. This result was interpreted by a synergy between adsorption and photo-oxidat...

AbstractWe report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based on grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles on P25-TiO2 nanoparticles and HAP obtained by co-precipitation of salts. The 5-nm oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. The photocatalytic test of ethylene degradation, in a continuous-flow fixed-bed reactor, showed an increase of the photocatalytic yield for the composite photocatalysts with an addition of HAP. This result was interpreted by a synergy between adsorption and photo-oxidat...

AbstractWe report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based on grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles on P25-TiO2 nanoparticles and HAP obtained by co-precipitation of salts. The 5-nm oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. The photocatalytic test of ethylene degradation, in a continuous-flow fixed-bed reactor, showed an increase of the photocatalytic yield for the composite photocatalysts with an addition of HAP. This result was interpreted by a synergy between adsorption and photo-oxidat...

AbstractWe report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based on grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles on P25-TiO2 nanoparticles and HAP obtained by co-precipitation of salts. The 5-nm oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. The photocatalytic test of ethylene degradation, in a continuous-flow fixed-bed reactor, showed an increase of the photocatalytic yield for the composite photocatalysts with an addition of HAP. This result was interpreted by a synergy between adsorption and photo-oxidat...

Abstract Textile effluents treatment is one of the important environmental challenges nowadays. Photocatalysis has proven its effectiveness for the removal of recalcitrant compounds, and it is considered as a green technology for the treatment of effluents. However, good photocatalytic yield is strongly related to the operating parameters. In this study, a supported TiO 2 on a β-SiC foam was tested for the removal of Rhodamine B (RhB). The photocatalytic discoloration of RhB synthetic solution in our condition was about 90%. The effects of each parameter were assessed through a full factorial...

Abstract Textile effluents treatment is one of the important environmental challenges nowadays. Photocatalysis has proven its effectiveness for the removal of recalcitrant compounds, and it is considered as a green technology for the treatment of effluents. However, good photocatalytic yield is strongly related to the operating parameters. In this study, a supported TiO 2 on a β-SiC foam was tested for the removal of Rhodamine B (RhB). The photocatalytic discoloration of RhB synthetic solution in our condition was about 90%. The effects of each parameter were assessed through a full factorial...

Abstract Textile effluents treatment is one of the important environmental challenges nowadays. Photocatalysis has proven its effectiveness for the removal of recalcitrant compounds, and it is considered as a green technology for the treatment of effluents. However, good photocatalytic yield is strongly related to the operating parameters. In this study, a supported TiO 2 on a β-SiC foam was tested for the removal of Rhodamine B (RhB). The photocatalytic discoloration of RhB synthetic solution in our condition was about 90%. The effects of each parameter were assessed through a full factorial...

Abstract Textile effluents treatment is one of the important environmental challenges nowadays. Photocatalysis has proven its effectiveness for the removal of recalcitrant compounds, and it is considered as a green technology for the treatment of effluents. However, good photocatalytic yield is strongly related to the operating parameters. In this study, a supported TiO 2 on a β-SiC foam was tested for the removal of Rhodamine B (RhB). The photocatalytic discoloration of RhB synthetic solution in our condition was about 90%. The effects of each parameter were assessed through a full factorial...

Abstract Textile effluents treatment is one of the important environmental challenges nowadays. Photocatalysis has proven its effectiveness for the removal of recalcitrant compounds, and it is considered as a green technology for the treatment of effluents. However, good photocatalytic yield is strongly related to the operating parameters. In this study, a supported TiO 2 on a β-SiC foam was tested for the removal of Rhodamine B (RhB). The photocatalytic discoloration of RhB synthetic solution in our condition was about 90%. The effects of each parameter were assessed through a full factorial...

AbstractThe development of alternative methods to degrade natural organic matter or its components to harmless products is an area that has been attracting significant research interest lately. This paper reports the photodegradation of humic acid using a composite photocatalyst made up of TiO2 nanoparticles and a carbonaceous hyper-cross-linked polystyrene-type precursor derived from post-consumer waste polystyrene. The physicochemical properties of the TiO2-carbonaceous hyper-cross-linked polystyrene nanocomposites were determined using Fourier transform infrared spectroscopy, UV–visible spe...

AbstractThe development of alternative methods to degrade natural organic matter or its components to harmless products is an area that has been attracting significant research interest lately. This paper reports the photodegradation of humic acid using a composite photocatalyst made up of TiO2 nanoparticles and a carbonaceous hyper-cross-linked polystyrene-type precursor derived from post-consumer waste polystyrene. The physicochemical properties of the TiO2-carbonaceous hyper-cross-linked polystyrene nanocomposites were determined using Fourier transform infrared spectroscopy, UV–visible spe...

AbstractThe development of alternative methods to degrade natural organic matter or its components to harmless products is an area that has been attracting significant research interest lately. This paper reports the photodegradation of humic acid using a composite photocatalyst made up of TiO2 nanoparticles and a carbonaceous hyper-cross-linked polystyrene-type precursor derived from post-consumer waste polystyrene. The physicochemical properties of the TiO2-carbonaceous hyper-cross-linked polystyrene nanocomposites were determined using Fourier transform infrared spectroscopy, UV–visible spe...

AbstractThe development of alternative methods to degrade natural organic matter or its components to harmless products is an area that has been attracting significant research interest lately. This paper reports the photodegradation of humic acid using a composite photocatalyst made up of TiO2 nanoparticles and a carbonaceous hyper-cross-linked polystyrene-type precursor derived from post-consumer waste polystyrene. The physicochemical properties of the TiO2-carbonaceous hyper-cross-linked polystyrene nanocomposites were determined using Fourier transform infrared spectroscopy, UV–visible spe...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modificati...

Objectives: Dacryodes edulis is tropical multi-purpose tree, which produces fruits for human consumption. Unfortunately, this fruit grown in Côte d’Ivoire is still unknown to the public and is the subject of very few studies. The present study aims to characterize D. edulis fruits starting from their morphological to chemical properties.Methodology and Results: Ripe fruits were collected from 3 sites (CNRA-Azaguié, Azaguié-Blida and Grand- Morié). The morphological characteristics measured (weight, length, diameter and pulp thickness) and identified 2 Ivorian safou varieties: D. edulis var. ed...

Objectives: Dacryodes edulis is tropical multi-purpose tree, which produces fruits for human consumption. Unfortunately, this fruit grown in Côte d’Ivoire is still unknown to the public and is the subject of very few studies. The present study aims to characterize D. edulis fruits starting from their morphological to chemical properties.Methodology and Results: Ripe fruits were collected from 3 sites (CNRA-Azaguié, Azaguié-Blida and Grand- Morié). The morphological characteristics measured (weight, length, diameter and pulp thickness) and identified 2 Ivorian safou varieties: D. edulis var. ed...

Objectives: Dacryodes edulis is tropical multi-purpose tree, which produces fruits for human consumption. Unfortunately, this fruit grown in Côte d’Ivoire is still unknown to the public and is the subject of very few studies. The present study aims to characterize D. edulis fruits starting from their morphological to chemical properties.Methodology and Results: Ripe fruits were collected from 3 sites (CNRA-Azaguié, Azaguié-Blida and Grand- Morié). The morphological characteristics measured (weight, length, diameter and pulp thickness) and identified 2 Ivorian safou varieties: D. edulis var. ed...

Objectives: Dacryodes edulis is tropical multi-purpose tree, which produces fruits for human consumption. Unfortunately, this fruit grown in Côte d’Ivoire is still unknown to the public and is the subject of very few studies. The present study aims to characterize D. edulis fruits starting from their morphological to chemical properties.Methodology and Results: Ripe fruits were collected from 3 sites (CNRA-Azaguié, Azaguié-Blida and Grand- Morié). The morphological characteristics measured (weight, length, diameter and pulp thickness) and identified 2 Ivorian safou varieties: D. edulis var. ed...

Adsorption behaviours of humic acid on three natural clays from Ivory Coast were studied. In order to investigate the adsorption mechanism, characterization of clays and the humic acid–clay complex was conducted by using various analytical methods (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), specific surface area analysis (BET) and chemical composition). As a result, adsorption process showed that the maximum adsorption capacity of humic acid was achieved at pH = 3 and was found to be to 115 mg/g obtained for the best sample. For al...

Adsorption behaviours of humic acid on three natural clays from Ivory Coast were studied. In order to investigate the adsorption mechanism, characterization of clays and the humic acid–clay complex was conducted by using various analytical methods (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), specific surface area analysis (BET) and chemical composition). As a result, adsorption process showed that the maximum adsorption capacity of humic acid was achieved at pH = 3 and was found to be to 115 mg/g obtained for the best sample. For al...

Adsorption behaviours of humic acid on three natural clays from Ivory Coast were studied. In order to investigate the adsorption mechanism, characterization of clays and the humic acid–clay complex was conducted by using various analytical methods (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), specific surface area analysis (BET) and chemical composition). As a result, adsorption process showed that the maximum adsorption capacity of humic acid was achieved at pH = 3 and was found to be to 115 mg/g obtained for the best sample. For al...

Adsorption behaviours of humic acid on three natural clays from Ivory Coast were studied. In order to investigate the adsorption mechanism, characterization of clays and the humic acid–clay complex was conducted by using various analytical methods (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), specific surface area analysis (BET) and chemical composition). As a result, adsorption process showed that the maximum adsorption capacity of humic acid was achieved at pH = 3 and was found to be to 115 mg/g obtained for the best sample. For al...

Adsorption behaviours of humic acid on three natural clays from Ivory Coast were studied. In order to investigate the adsorption mechanism, characterization of clays and the humic acid–clay complex was conducted by using various analytical methods (attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), specific surface area analysis (BET) and chemical composition). As a result, adsorption process showed that the maximum adsorption capacity of humic acid was achieved at pH = 3 and was found to be to 115 mg/g obtained for the best sample. For al...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Sickle cell anaemia is a hereditary blood disorder that attacks the red blood cells and deforms them, giving them a sickle shape. Sickle cell anaemia is a serious health problem in the West African country of Niger. Moreover, the cost associated with medical care is very high. The main objective of this study is to contribute to the valorisation of Flueggea virosa (Roxb. ex Willd.) Royle (aerial part), Kigelia africana (lam), and Benth (leaves) from Niger were used to treat sickle cell disease using aqueous and ethanolic extracts of phytochemical compounds. To achieve this objective, the evalu...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

Corchorus olitorius L, a traditional leafy vegetable of the Malvaceae family, is well appreciated in the central region of Côte d'Ivoire, where there are 5 cultivars whose phytochemical profile and antioxidant potential remain poorly understood. To better characterise them, phytochemical analysis and evaluation of antioxidant activity by DPPH and ABTS were carried out. The analyses revealed that the leaves of these cultivars are good sources of nutrients, with high levels of protein (19 - 25%), ash (8 - 12%), fibre (3 - 9%), total carbohydrates (40 - 48%), energy (252 - 288 Kcal/100g), iron (2...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

In the context of climate change, the Ivorian cotton industry is facing with the loss of sensitivity of pests (Helicoverpa armigera) and the appearance of new so-called emerging insects. Faced with this situation, cotton producers tend to use insecticide products in high doses, in excess of the norm. However, the misuse of chemical products poses many health risks. Therefore, to limit the use of chemicals, aqueous extracts of local plants with insecticidal properties were examined in the laboratory and in the field. Four local plant species were selected [Anacardium occidentale (Anarcardier);...

Many of Euphorbiaceae species are recognized as traditional medicinal plants and the oils and latex of many species have also economic importance. In fact, Euphorbia heterophylla L., belonging to this family and popularly known in Brazil as “leiteira”, “flor-de-poetas” and wild poinsettia, has been used traditionally in Africa and India to treat many kinds of health disorders. However, the chemical composition of this species has been little studied so far. In the present investigation, the flavonoids quercitrin (quercetin 3-O-α-L-rhamnopyranoside), hyperin (quercetin 3-O-β-D-galactopyranoside...

Many of Euphorbiaceae species are recognized as traditional medicinal plants and the oils and latex of many species have also economic importance. In fact, Euphorbia heterophylla L., belonging to this family and popularly known in Brazil as “leiteira”, “flor-de-poetas” and wild poinsettia, has been used traditionally in Africa and India to treat many kinds of health disorders. However, the chemical composition of this species has been little studied so far. In the present investigation, the flavonoids quercitrin (quercetin 3-O-α-L-rhamnopyranoside), hyperin (quercetin 3-O-β-D-galactopyranoside...

Many of Euphorbiaceae species are recognized as traditional medicinal plants and the oils and latex of many species have also economic importance. In fact, Euphorbia heterophylla L., belonging to this family and popularly known in Brazil as “leiteira”, “flor-de-poetas” and wild poinsettia, has been used traditionally in Africa and India to treat many kinds of health disorders. However, the chemical composition of this species has been little studied so far. In the present investigation, the flavonoids quercitrin (quercetin 3-O-α-L-rhamnopyranoside), hyperin (quercetin 3-O-β-D-galactopyranoside...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

Vegetable crops in Côte d'Ivoire are attacked by numerous pests, including plant-parasitic nematodes that cause enormous crop losses.A survey was conducted in six agroecological zones (AEZ) to study the plant-parasitic nematodes associated with vegetable crops.120 soil and root samples of seven plant species belonging to Solanaceae and Cucurbitaceae were collected.These samples were subjected to various laboratory analyses, including extraction, counting, and identifying nematodes.Plant-parasitic nematodes belonging to nine genera have been inventoried: Meloidogyne, Helicotylenchus, Radopholus...

According to the economic literature, the influence of political instability on economic activity is ambiguous. In the case of ECOWAS, we attempt to verify whether political instability conditions the effect of industrial performance on growth. The aim of our study is to verify the relationship between industrial performance and economic growth in ECOWAS under the influence of political instability over the period 1990-2018. To this end, we estimate a non-linear model using the Pool Mean Group (PMG) method. Our results show that political instability negatively influences the effect of industr...

According to the economic literature, the influence of political instability on economic activity is ambiguous. In the case of ECOWAS, we attempt to verify whether political instability conditions the effect of industrial performance on growth. The aim of our study is to verify the relationship between industrial performance and economic growth in ECOWAS under the influence of political instability over the period 1990-2018. To this end, we estimate a non-linear model using the Pool Mean Group (PMG) method. Our results show that political instability negatively influences the effect of industr...

reproduction ou représentation de cet article, notamment par photocopie, n'est autorisée que dans les limites des conditions générales d'utilisation du site ou, le cas échéant, des conditions générales de la licence souscrite par votre établissement.Toute autre reproduction ou représentation, en tout ou partie, sous quelque forme et de quelque manière que ce soit, est interdite sauf accord préalable et écrit de l'éditeur, en dehors des cas prévus par la législation en vigueur en France.Il est précisé que son stockage dans une base de données est également interdit.

reproduction ou représentation de cet article, notamment par photocopie, n'est autorisée que dans les limites des conditions générales d'utilisation du site ou, le cas échéant, des conditions générales de la licence souscrite par votre établissement.Toute autre reproduction ou représentation, en tout ou partie, sous quelque forme et de quelque manière que ce soit, est interdite sauf accord préalable et écrit de l'éditeur, en dehors des cas prévus par la législation en vigueur en France.Il est précisé que son stockage dans une base de données est également interdit.