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Introduction: Fresh and smoked fish are widely consumed in Côte d'Ivoire as everywhere in West Africa. However, these foodstuffs, due to certain processing conditions, are likely to be contaminated by molds that produce dangerous mycotoxins. Objective: This study aimed to isolate and identify fungal strains contaminating fresh and smoked fish from the Sassandra River in Côte d'Ivoire. Place and Date of the Study: Sampling was carried out in various processing sites around the Sassandra River, particularly in the towns of Soubré and Guessabo. The microbiological analysis was carried out at Jean Lorougnon Guédé University in Daloa (Ivory Coast). Methods: A total of 108 samples of fresh and smoked fish were collected. Isolation and purification of fungal strains were carried out on Sabouraud medium with chloramphenicol. The identification of isolated strains was made on the basis of morphological and cultural criteria. Results: A total of 126 fungal strains were isolated, including 87 from the Guessabo samples and 39 from the Soubré samples from 54 fresh fish and 54 smoked fish. The predominant species were Aspergillus of the Glaucus group (39%), Aspergillus niger (36%) and Penicillium sp. (25%). Conclusion: This study shows that fresh and smoked fish from the Sassandra River in Côte d'Ivoire are contaminated by several strains of molds, some of which produce mycotoxins that can cause illness in consumers depending on their concentrations. It would therefore be appropriate to improve processing techniques.

The management of crop waste remains a major concern in countries with high agricultural potential such as Côte d'Ivoire, due to the pollution of environmental components resulting from its poor management. This work aims to set up a waste exchange to provide real information on crop residues produced in the departments of Soubré, Sassandra, Daloa and Issia to operators wishing to recover them. The modeling of the system was carried out following the approach of the MERISE method which is characterized by three levels: Conceptual, Logical and Physical. The interface of the exchange was developed with the PHP language. The software implemented uses the database that we have implemented in accordance with the data model that we have created. This software effectively takes into account the modules of a waste exchange. It guarantees data security and minimizes possible errors. The stock exchange database was generated by a Relational Database Management System (RDBMS), designed around the concepts of the SQL language. The waste exchange is available. It can be consulted through a user-friendly homepage. It can provide real-time information to all economic operators wishing to recover crop residues, it displays offers, gives the possibility of contacting the residues holder. The departments of Soubré, Sassandra, Daloa and Issia have a very great potential for the production of agricultural residues that may be of interest to economic operators for recovery in processing units or "recovery units".

Despite the evolution of modern medicine, traditional medicine remains widespread in developing countries and its use continues to increase in industrialized countries.It is the same way that the effectiveness of the hydroalcoholic extract of Terminalia ivorensis was tested on the feet fungus disease of volunteers. Objective: The present work is oriented in the preparation of an antimicrobial hydroalcoholic extract of Terminalia ivorensis, a medicinal plant in order to enhance it. Materials and Methods: One hundred (100) grams of powder from trunk bark’s Terminalia ivorensis were extracted by homogenisation in a solvent mixture of 70% ethanol and 30% distilled water in a blender. After six grinding cycles, the homogenate obtained in each case was first wrung out in a clean white cloth square and then successively filtered twice on cotton wool and on Whatman 3 mm filter paper. The filtrate obtained was dried in a Venticell oven. The powder obtained constitutes the hydroalcoholic extract (or The 70% hydroethanolic extract). The 70% hydroethanolic extract of Terminalia ivorensis obtained was mixed with water to obtain a pasty liquid form before being tested on feet fungus disease using a cotton ball. Results: The extract had activity on these different shapes of feet fungus disease with a marked improvement. The volunteers who finished their treatment have been cured of feet fungus disease. Conclusion: The treatment results obtained revealed that the hydroalcoholic extract has good antimicrobial activity. The hydroalcoholic extract can be an undeniable source for the development of Improved Traditional Medicines (ITM) against feet fungus disease.

The valorisation of agricultural residues into a high value-added product is necessary to respond to the global environmental concerns caused by the pollution of agricultural waste. The objective of this study was to shed light on a new value-added usage of cocoa pod husk (CPH) for the synthesis of cellulose triacetate (CTA). Alkaline treatment with sodium hydroxide (5 wt%) followed by bleaching process with (2 wt%) hydrogen peroxide was found effective for the extraction of cellulose from CPH. The percentage of cellulose obtained was 80.5% with a yield of 54%. The CTA was synthesised by a explore new way acetylation reaction in the presence of acetic acid, acetic anhydride, and sulphuric acid. The CTA obtained had a degree of substitution of 2.87 and a percentage of acetylated group of 43.8%, as determined by titration. The result of Fourier transform infrared spectroscopy showed the appearance of the stretching of the ester and the acetyl groups, indicating the formation of CTA. X-ray diffraction showed that the crystallinity index of CPH cellulose was 38.4%, while indicating the semi-crystalline nature of CTA produced. Scanning electron microscopy confirmed a change in the morphology of CTA after acetylation. X-ray energy dispersive analysis showed that the CTA was mainly composed of carbon and oxygen.

Background: Pycnanthus angolensis (Welw.) Warb. (Myristicaceae) is a medicinal plant used in traditional Ivorian medicine. A recent ethnobotanical survey has discovered Pycnanthus angolensis in the traditional treatment of viral and parasitic diseases. Aim: The present study aims to highlight the distinctive ethnopharmacological characteristics of Pycnanthus angolensis. Methods: The aim was to identify some groups of chemical compounds by thin layer chromatography, to assay some minerals and finally to characterise the specific anatomical and micrographic features of the plant. Results: Terpenes and sterols, saponosides, flavonoids and tannins are the main phytocompounds revealed. Magnesium with 621.3 mg/100 g dry matter is the most abundant mineral. Anatomical sections and plant powder revealed starch grains, calcium oxalate crystals, secretory pockets and tector hairs that are responsible for the formation of various biological substances in the plant. Conclusion: These results add to the data on Pycnanthus angolensis, a taxon much used in traditional Ivorian medicine for the treatment of antiparasitic and antiviral diseases.

The pegmatitic rocks located in the south-east of Côte d'Ivoire between the Comoé basin and the Sefwi belt are the subject of this study. The geology of this region consists of gneisses, granites, microgranites, amphibolites, mylonites and metasediments. All these rocks are generally crosscut by quartz and pegmatite lodes. The petrographic studies allow us to discriminate four groups of pegmatites on the basis of mineralogy: (i) beryl-muscovite bearing pegmatite (Aboisso-Comoé), (ii) albite-tourmaline bearing pegmatite (Aboisso-Comoé), (iii) micas-tourmaline bearing pegmatite (Alosso) and (iv) muscovite-garnet bearing pegmatite (Songan forest). XRD analyzes on 4 samples revealed the presence of lepidolite (lithium ore) in the muscovite-garnet bearing pegmatite (Songan forest) and phengite in beryl-muscovite bearing pegmatite (Aboisso-Comoé). The pegmatite diffractograms of Aboisso-Comoé (beryl-muscovite bearing pegmatite) and Songan forest (muscovite-garnet bearing pegmatite) show almost same signatures and would suggest that those pegmatites come from the same source. Geochemical analyzes by portable XRF carried out on muscovite and feldspar minerals indicate that the samples from Aboisso-Comoé and Songan forest have the characteristics of Lithium-Cesium-Tantale type (LCT) pegmatites. The geochemical diagrams indicated the probable presence of beryl and spodumene type mineralization in the muscovite-garnet bearing pegmatite.

Herbal products developed by traditional healers are more and more in increasing in Africa. Unfortunately, there is often no safety data on these products. That is the case of an Herbal Medicine Product (HMP) called "DAOUTRA EPIGASTRO", widely used by local population in Daloa City-Cote d’Ivoire to treat chronic gastritis without knowing its harmlessness. This study aimed to study safety of this product by evaluating its acute and sub-acute effects on Wistar rats by oral administration. Acute toxicity test was assessed with a single concentration of either 500, 1000 and 3000 mg/kg bw of the product to female rats in the goal to determine clinical signs of intoxication and LD50. However, sub-acute toxicity test was carried out by daily administration of 300, 500 and 1000 mg/kg bw for 28 days duration in order to identify eventual modifications of hematological and biochemical parameters; then to appreciate histological changes of some selected intern organs. This operation was achieved by collecting blood and isolating hearts, livers and kidneys at the end of the experiment. As results, acute study showed that from day 7 onwards, the remedy administered at 3000 mg/kg significantly increased the weight of the rats compared to the controls, no mortality, no clinical sign of intoxication and LD50 was higher than 3000 mg /kg bw. For sub-acute exposure, the animals showed a stimulation of the appetite for food after consumption of the remedy "DAOUTRA EPIGASTRO". Except the increasing of AST and ALT content at 1000 mg/kg bw, no abnormal modifications were observed for hematological and biochemical parameters, then histological analysis didn’t show any alteration of selected organs. In addition, the difference in relative weights between treated and control rats were not statistically significant for the liver and heart. However, there was a significant difference between relative weights of liver at all treated rats in comparison to control. The study showed that the .....

In Côte d’Ivoire, the quail breeding is confronted with the lack of food specific to the species. Thus, in the south-east of this country, an experimental study was conducted at the ISMOREL farm in the sub-prefecture of Adiaké. This study, which aims to improve the productivity of day-to-day farms, focused on the grain size of the feed. From grower (GD) and layer (LD) diets, 5 experimental diets have been manufactured. There are: LD 5 with a particle size of 5 mm, LD 3 and GD 3 with a particle size of 3 mm as well as LD 2 and GD 2 with a particle size of 2 mm. The growth parameters related to 750 two-week-old unsexed subjects weighing 49.67 ± 0.17 g on average. For egg-laying, 300 female quails were used at 6-week-old. The results showed an influence of the 2 mm grain size (LD 2 and GD 2) on parameters such as feed intake (186.96 ± 4.73 g and 153.46 ± 5.33 g), average live weight (142.37 ± 1.76 g and 155.85 ± 1.85 g), the average daily gain (4.29 ± 1.22 g/d and 4.74 ± 1.25 g/d), the age of first egg laid (49.33 ± 0.58 d and 46.33 ± 1.26 d) and egg-laying rate (67.24 ± 30.97% and 74.12 ± 34.03%). At the end of this study, it appears that the 2 mm particle size induces better growth and egg-laying performance in Japanese quail.

Introduction: Artemisia annua (Asteraceae) is a plant widely used to treat diseases including malaria. Manipulation conditions and treatment of plant influence physico-chemical characteristics and composition, so that objective of this work was to examine extraction processes in order to identify the best process that leads to obtain extracts with optimal pharmacotechnical characteristics and phytochemical properties for drugs formulation. Methods: From raw powder resulting by spraying stems and leaves of Artemisia annua, 3 types of extracts were obtained; a dry infused, a dry hydro-ethanolic macerate and a freeze-dried infused. These different extracts were then characterized on physico-chemical, phyto-chemical and microbiological levels in order to compare them. Results: Freeze-dried infused exhibited the highest extraction yield followed by dry hydro-alcoholic macerate and dry infused with extraction percentages respectively of 11.7 ±0.3%, 8.4 ± 0.4% and 6.8 ± 0.3%. Powders tested were fine and had a diameter varying from 0-2.75 µm with a D 50

This study aims to determine the microbiological and nutritional quality of complementary foods for children produced in the city of Man (instant flour and porridge). To do this, a structured survey of nannies and vendors, coupled with microbiological and physicochemical analyzes was carried out. To this end, a questionnaire survey was conducted among nannies and porridge sellers in order to collect information on the use of complementary foods and to assess the state of cleanliness of the sales environment. A study of physicochemical (carbohydrates, lipids, humidity, ash, minerals) and microbiological (total aerobic mesophilic flora, yeasts and molds, total coliforms, Escherichia coli, Staphylococcus sp. and Salmonella sp.) characteristics using standard methods and referenced was then conducted to assess the nutritional value and health status of the porridges (Millet, Kokobaka, Anagobaka) and flours from the Focolari center consumed in Man. The survey data showed that the majority of the of nannies (61.1%) give a complementary food before the age of introduction (6 months), with regard to the saleswomen (100%) unaware of the proportion of the components and their nutritional intake as well as 54.8% of them have an unhealthy work place and environment. The microbiological analysis carried out on the 50 samples revealed a potential contamination of spoilage and pathogenic germs. The contamination rate of Anagobaka porridge is very worrying unlike other porridges and flours, especially with the presence of salmonella, the high rate of Escherichia coli and Staphylococcus aureus respectively (3.91×103 ± 0.09 and 5.34×104 ± 0.10 CFU/mL).) Regarding the nutritional analysis, there is a content of carbohydrates (70.17-85.08%), lipids (6.93-10.40%) and iron (30.64-64.34%) higher than those recommended by the FAO/WHO standard in the 6 types of samples analyzed. However, the zinc content is below this standard in all the samples tested. However, zinc deficiency is one of the main causes of stunted growth in children. All these results have shed light on the existence of a potential health risk and possible nutritional deficiencies in infants and young children who consume locally produced complementary foods.

The objective of this study was to evaluate the anti-nutrient and organic acid content of the seeds of three legumes of the genus Canavalia according to their maturity stage. The biological material used for the laboratory operations consisted of seeds and pods at different stages of maturity harvested from a field in the Gbèkê region, central Côte d'Ivoire. Seeds of the three cultivars were harvested at different stages of maturity: 30 days (S1), 40 days (S2), 50 days (S3), 60 days (S4) and 80 days (S5) after fertilisation. The seeds are dried and ground to obtain the raw meal. The content of anti-nutrient compounds was studied using standard colorimetric methods, while the distribution of organic acids was carried out using HPLC analytical methods. The composition of anti-nutrients showed that their content decreased during ripening from stage S1 to stage S5 with the lowest contents, respectively for Canavalia gladiata, Canavalia rosea and Canavalia ensiformis being : 33.49 ± 0.06, 32.06 ± 0.06, 21.23 ± 0.06 mg/100g DM for phytates; 257.15 ± 0.06, 141.48 ± 0.07, 177.42 ± 0.06 mg/100g DM for oxalates; 1.39 ± 0.05, 1.67 ± 0.01, 1.09 ± 0. 01 mg/100g DM for saponin; 449.17 ± 5.54, 442.50 ± 5.38, 546.67 ± 2.98 mg/100g DM for L-dopamine and 98967.42 ± 3.27, 866.71 ± 3.19, 437.67 ± 1.99 trypsin units inhibited by trypsin inhibitors. With regard to the content of organic acids at all stages of maturity, it is noted that the predominant for the extracts of C. gladiata and C. rosea is lactic acid (0. 05 to 3.68 mg/kg DM and 0.03 to 4.02 mg/kg DM) followed by acetic acid (0.03 to 3.06 mg/kg DM and 0.01 to 2.11 mg/kg DM) and oxalic acid (0.01 to 2.76 mg/kg DM and 0.01 to 1.54 mg/kg DM).

Yam wholesalers who practice speculative storage sometimes suffer significant losses the level of which has been little studied. Thus, this work was carried out to study the practices and deterioration factors of 'Kponan' yam during storage. To achieve this, 51 yam wholesalers in 4 communes of Abidjan (Abobo, Adjamé, Yopougon and Treichville) were interviewed using a survey form. The data showed that according to storage practices, yams are preferentially grouped by variety (100%) and old yams separately (88.2%). Wholesalers (94.1%) regulate the storage temperature either by fans (23.5%), by air openings in the wall (25.5%), or by fans and air openings in the wall (45.1%). Decay was the most common damage among all wholesalers (100%), followed by weight loss (52.9%), mold (35.3%), injury (29.4%), cracking (23.5%), and sprouting (17.6%). Heat was the main cause of yam damage, followed by moisture (82.3%), animals (31.4%), field storage conditions (17.6%), chemical use during cultivation (17.6%) and sprouting (17.6%). This study shows that the storage and temperature control techniques employed by wholesalers are far from mitigating the heat that is the main cause of damage to 'Kponan' yam (Dioscorea Cayenenis-rotundata) during storage.

Termites play an important ecological role. The objective of this work is to evaluate the diversity of termites in two different ecosystems (primary forest and horticultural forest) of the Partial Dalhia Fleurs Natural Reserve (DFNR) In each ecosystem, three transects were carried out using the standardized rapid termite assessment method. A total of 20 species of termites were sampled. In the primary forest, 18 species were sampled and 16 species in the horticultural forest. These species belong to two families which are the Termitidae with 17 species and the Rhinotermitinae. These termites were Macrotermes subhyalinus, Macrotermes bellicosus, Acanthotermes sp, Odontotermes sp, Ancistrotermes guineensis, Microtermes sp, Microtermes sp2, Procubitermes sp, Protermes sp, Pericapritermes sp, Microcerotermes parvus, Amphidotermes sp, Cubitermes fungifaber, Noditermes sp, Apilitermes sp, Amitermes guineensis and Trinervitermes sp. The second family was that of Rhinotermitidae with 3 species namely Coptotermes intermedius, Coptotermes sjöstedti and Schedorhinotermes lamanianus. Thus, the Dalhia Fleur Nature Reserve abounds in a significant wealth of termitic fauna. It is therefore important to protect it further.

On Yamoussoukro autonomous district, a study on the ability of Lippia multiflora L. (Verbenaceae) to shoot and grow was carried out at six soil height levels: 0 cm, 5 cm, 10 cm, 15 cm, 20 cm, 25 cm and 30 cm. The objectif was to determine the favourable levels of pruning for better leaf production. From 28 samples grouped in 7 batches, the pruning was carried out. After 3 months of vegetation, the agronomic parameters of vigour were determined. The results showed that various growth parameters such as number of buds, number of leaves per bud, bud height, leaf length and width as well as budding time and leaf span were measured. Receiving levels at 10 cm, 15 cm and 20 cm from the ground resulted in good leaf production and bud growth.

This study was conducted at the ENS vivarium located at the UFHB of Cocody in the city of Abidjan in the south of Ivory Coast, with a temperature of about 28° C and a humidity of about 70%. It aimed to study some biological parameters of the black soldier fly Hermetia illucens. For achieve this goal, it was a question of studying the different stages of development of the black soldier fly and also studying the evolution of its growth parameters. The flies were captured, kept in an aviary and observed from the fly stage to the end of the pupal stage (emergence of the first flies). Data on the duration of the different stages of development and the evolution of larval growth parameters (average weight, length, width, Fulton index, length/width ratio, survival and mortality rate of larvae) have been taken. This study revealed that the life cycle of Hermetia illucens is between 31 and 43 days, with an incubation time of eggs that lasts 2 days, a larval phase of 14 days, a pupation of 10 days and a duration of adult life of 8 days on average. In addition, this study reports a low mortality rate of larvae (3.45%), larvae much longer (19.46 mm), wider (6 mm) and plumper.

The need for improved aubergine varieties is increasing because of climate change’s effects such as drought. To solve this problem, the use of wild ancestor of aubergine, Solanum insanum, as a source of genes seems appropriate since this species is found in various climates. The objective was to obtain aubergine genotypes with genes from the wild species, S. insanum, giving them the ability to adapt to drought. Drought tolerance of accessions from Solanum melongena and Solanum insanum and their F1 progeny was assessed using 16 phenotypic descriptors. Variance and genetic parameters (heritability (h2), genotypic (GCV) and phenotypic (PCV) coefficients of variation, correlations) relating to growth dynamics were estimated. F1 hybrids exhibited better drought tolerance abilities than parental accessions. The values of floral characteristics of these hybrids were higher in dry season. This favoured reproduction at expense of vegetative growth. Finally, high differences between GCV and PCV corroborated by low values of h2 show that plant selection based on growth dynamics would be ineffective for improving aubergine against drought. Development of plant organs determined by genes with pleiotropic effects is reflected by contrasting values of genotypic and phenotypic correlations.

Aims: An important aspect of the valorization of plants of interest is the search for phytoactives. This work aims to show the effect of extractive processes (maceration, decoction, Soxhlet extraction) both on the phytoconstituents of a plant species and on their intrinsic properties. Methodology: Alchornea cordifolia, a botanical species growing in Côte d'Ivoire, was chosen for this purpose. Phytophenols, flavonoids and condensed tannins were quantified by spectrophotometry. Antioxidant (DPPH and FRAP) and analgesic activity were also evaluated. Results: The quantitative analysis of total phytophenols, total flavonoids and condensed tannins of macerated, decocted and Soxhlet extracts of the plant organs (leaves, stems, roots), highlighted their respective contents, varying proportionally according to the extraction conditions. The same observation was made at the end of the estimation of the antioxidant (DPPH and FRAP tests) and analgesic activities of these different extraction fractions. Conclusion: This study has demonstrated the effect of three extraction processes on some phytoactives quantified of A. cordifolia.

The building of hydroelectric dams has consequences on the ecological conditions of ecosystems, such as the regression or disappearance of certain species that have a benthic entomophagous diet or a proliferation of omnivorous and planktivorous species. The study of fish feeding can provide data not only on the presence of prey, but also on the abundance and availability of trophic potential. In view of the new hydroelectric development project on the Bandama River, this study proposes to examine the diets of Synodontis bastiani, S. schall and S. punctifer that are captured in the area. Stomachs were collected and contents examined from fish caught monthly between November 2019 and October 2020 using gill nets in the N'Dènou locality. A total of 417 fish belonging to S. bastiani, S. schall, S. punctifer were examined. The food spectrum of the studied species is wide and diversified. It is mainly composed of Macrophytes, Insects, Worms, Mollusks, Zooplankton, Crustaceans. These species are all omnivorous with a benthophagous tendency. No difference was observed in the diet according to the size.

Kernels of cashew (Anacardium occidentale L.) possess an enormous nutritional and technological potential. However, the almond is less consumed and processed by food industries in Côte d’Ivoire. The present study aims to bring added value to cashew kernel. The effect of this cashew almond extract was tested on fermentative activity of two lactic bacteria (Lactobacillus delbrueckii subsp bulgaricus and Streptococcus salivarius subsp thermophilus) specific for yoghurt production. The study consisted of making seven formulations composed of milk and aqueous extract of cashew almond. Different formulations namely F0, F1, F2, F3, F4, F5 and F6 contained 0%, 5%, 10%, 15%, 20%, 25% and 30% respectively of aqueous extract of cashew almond. Lactic ferment containing the above lactic bacteria was used for fermentation of each formulation. Effect of aqueous extract from cashew almond on fermentative activity of the two bacteria was carried out by pH, titratable acidity with duration of fermentation to obtain 80 Dornic degrees. The results showed that the fermentative activity of lactic bacteria tested was improved with formulations with 15% (F3) and 20% (F4). With these two formulations, the acidity of the yogurt reaches 80° D compared to the standard (F0%). The extract therefore seems to stimulate the activity of bacteria at these two rates. Beyond 20% of cashew almond extract, the extract seems to inhibit the activity of lactic acid bacteria. The aqueous extract of cashew almond may play a role in yogurt-like fermented milk technology.

Convergecast is one of the most challenging tasks in Wireless Sensor Networks (WSNs). Indeed, this data collection process must be conducted while copying with packet collisions, nodes’ congestion or data redundancy. These issues always result in energy waste which is detrimental to network efficiency and lifetime. This paper is aimed to address these problems in large-scale multi-sink WSNs. Inspired by our previous work MSCP, we designed a lightweight protocol stack that seamlessly combines clustering, pathvector routing, sinks’ duty cycling, data aggregation and transmission scheduling in order to minimise message overhead and packet losses. Simulation results show that this solution can mitigate delay while significantly increasing packet delivery and network lifetime.

Legume seeds, particularly those of thePhaseolus lunatus(L.), are an important source of vegetable protein, fiber and micronutrients in the diet of the Ivorian population. However, these seeds contain anti-nutritive factors that limit their use. This study allowed us to evaluate the effect of cooking time on the nutritional and anti-nutritional parameters ofPhaseolus lunatus(L.) bean seeds for a better utilization of these seeds. Red and black seeds harvested at stage 4 (52 days) ofPhaseolus lunatus(L.) bean were cooked at 100 °C for 45, 60 and 75 minutes. The nutritional and anti-nutrional composition was determined on uncooked (control) and cooked samples. The results obtained showed an increase in carbohydrate (64.16 to 71.56%), energy value (29.68 to 36.27%) and fiber (4.62 to 6.05%) followed by a reduction in protein (4.62 to 6.05%), ash (4.62 to 6.05%) and fat (4.62 to 6.05%). The same cooking also caused a reduction in total phenols (59.18 to 72.49%), phytates (33.32 to 39.18%), oxalates (64.64 to 68.91%), tannins (62.07 to 67.59%), cyanidric acid (58.18 to 61.38%) and antioxidant activity (53.71 to 63.94%). The analysis of the seeds cooked at different times (45, 60 and 75 minutes) also shows us that the B vitamins and minerals decrease during cooking. The consumption ofPhaseolus lunatusbean seeds cooked at 45 minutes could be recommended in human diet due to the decrease of oxalates and phytates to prevent and treat some diseases such as cancer, inflammatory diseases, cardiovascular diseases and neurogenerative diseases.

During refining operations, desalting wastewater provides 10-30% of the total wastewater volumes and contains 40-70% of the pollutants in the wastewater treatment unit. Desalting consists of removing impurities from the crude oil with washing water. The discharge of treated water into the receptor environment is controlled according to standards regulation. However, due to human health and environmental risks, a multi-criteria and multi-stage analysis must be carried out. This present study aims to identify critical sources of wastewater treatment impacts from desalting operations. Life cycle assessment (LCA) with LCIA methods namely Recipe, CML-IA, TRACI, and USETOX were used in Gabi Software. According to this study, fossil fuel-based, electricity generation is the major contributor to negative output flows with about 99%. Emissions of CO2, CO, NOx, SOx, and COV during electricity generation influence the global warming potential through the greenhouse effect, acidification potential that causes acid rains, and photochemical oxidation potential relative to smog. Uncertainty relative to toxicity results does not allow conclusive points to be made. The inclusion of the desalting process in LCA of wastewater treatment is relevant for a comprehensive analysis. The preliminary results obtained during this work will be used in future LCAs in Africa to develop an environmental assessment database.

Cassia sieberiana is a tree of 8 to 10 meters in height, used to treat various diseases including malaria, dysmenorrhea and many others. Our objective is the scientific valorisation of Cassia sieberiana, a plant used in therapy in the Ivory Coast, through the evaluation of the estrogenic activity of the root bark of Cassia sieberiana. To do this, the phytochemical study was carried out in order to determine the main chemical constituents with therapeutic potential, then the acute toxicity by gavage was carried out and finally the estrogenic activity was verified. The phytochemical study revealed the presence of sterols, polyterpenes, polyphenols, flavonoids, catechic tannins, saponosides and alkaloids. As for the toxicity study, it allowed us to determine a per os LD50 > 5000 mg/kg PC. The aqueous extract of the root bark of Cassia sieberiana has an estrogenic activity.