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Edible Ectomycorrhizal Mushrooms Russula spp. of Côte d’Ivoire: Total Phenolic Content, HPLC-Profiles of Phenolic Compounds and Organic Acids, Antioxidant Activities

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Journal of Agricultural Chemistry and Environment 2016年第2期5卷 73-84页

作者： Kouamé Appolinaire Kouassi eugène jean parfait kouadio Kouakou Martin Djè Ahipo Edmond Dué Lucien Patrice Kouamé Laboratoire de Biocatalyse et des Bioprocédés UFR des Sciences et Technologie des Aliments Université Nangui Abrogoua (Ex Université d’Abobo-Adjamé) Abidjan C&ocirc te d’Ivoire

The aim of this study was to investigate the phenolic compounds content, HPLC-profiles of phenolic compounds and organic acids, and also antioxidant activities via the ability to scavenge DPPH radical of three wild edible mushrooms belonging to Russula genus and being collected in center of Côte d’Ivoire. Total phenolic compounds, flavonoids and tannins contents of methanolic extracts were assessed by colorimetric assays. So, the obtained values of these chemical parameters ranged from 394.05 to 513.50 mg/100 g DW, 94.50 to 139.95 mg/100 g DW and from 124.20 to 165 ± 0.54 mg/100 g DW, respectively. Otherwise, HPLC-profiles of the methanolic extracts revealed that quercetin, salicylic acid and tannin ol were the main phenolic compounds in R. delica whereas R. lepida contained gallic acid, catechin and protocatechuic acid as main phenolic compounds. Besides, it showed that the phenolic compounds such as salicylic acid, tannin ol and catechin were observed in R. mustelina. As for HPLC-profiles of organic acid, the fumaric and malic acid were recorded as the main organic acids in the three species of wild edible mushrooms. However, citric acid content was found to be highest in R. lepida. The methanolic extracts of the three mushrooms exhibited high DPPH radical scavenging activities ranging from 74.92% to 58.92%. These wild edible mushrooms could be considered a potential supply source of adequate natural antioxidant for local population.

关键词： Ectomycorrhizal Mushrooms Côte d’Ivoire Phenolic Compounds Organic Acids DPPH Scavenging Activities

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Nutrient Intake and Impact of the Consumption of Two Street Foods (Garba and Rice Eggplant Sauce) in Humans

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Food and Nutrition Sciences 2022年第3期13卷 195-210页

作者： N’Gbésso Amos Ekissi Yadé Réné Soro Gnogbo Alexis Bahi Ahou Bénédicte Nina Kouassi N’Guessan jean-eugène parfait kouadio Kouassi Benjamin Yao Allico Joseph Djaman Laboratory of Biotechnology Agriculture and Valorization of Biological Resources Department Biosciences University Félix Hou-phouet-Boigny Abidjan C&#244 te d’Ivoire Department of Clinical and Fundamental Biochemistry Institute Pasteur in C&#244 te d’Ivoire Abidjan C&#244 te d’Ivoire Laboratory of Biochemistry Microbiology and Valorization of Agricultural Resources Institute of Agropastoral Management Univer-sity Péléforo Gon Coulibaly Korhogo C&#244 te d’Ivoire Department Communication Environment and Society University Alassane Ouattara Bouake C&#244 te d’Ivoire Laboratory of Biocatalysis and Bioprocessing Department of Food Science and Technology University Nangui Abrogoua Abidjan C&#244 te d’Ivoire Laboratory of Industrial Processes Synthesis Environment and New Energies Institute National Polytechnique Felix Houphouet-Boigny Yamoussoukro C&#244 te d’Ivoire

Many lifestyle factors can affect health, but nutrition is an important, modifiable, and powerful factor in promoting health, preventing and treating disease, and improving quality of life. Inadequate dietary intake, regardless of the cause, can have negative effects on human growth and development. Analysis of tuna “Garba” and rice with eggplant sauce consumed in Abidjan (Côte d’Ivoire) revealed low levels of water-soluble B vitamins. Also, the analysis of these dishes observed the presence of histidine, leucine, valine, glutamine, arginine, cysteine and alanine. The tuna “Garba” (Gab) dish showed levels in amino acids ranging from 69.8 ± 1.33 to 764 ± 2.08 mg/kg and 77.1 ± 1.95 to 754.67 ± 2.8 mg/kg in the eggplant sauce rice (Risa) dish. During 15 days of consumption of these dishes by the wistar rats, anthropometric parameters, namely body length and abdominal circumference, showed a significant increase in the rats consuming the rice eggplant sauce. The rats showed BMI, Lee’s Index and Adipocyte Index ranged from 0.27 ± 0.01 to 0.31 ± 0.01 g/cm2;0.25 ± 0.01 to 0.26 ± 0.00 cm and 1.67% ± 0.25% to 1.96% ± 0.21% respectively. The nutritional profiling of these two street foods by LIM and SAIN score presented poor profiles.

关键词： Nutritional Values Tuna Garba Rice Eggplant Sauce Nutritional Profiling Abidjan (Côte d’Ivoire)

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Medium effects on micropropagation and genetic stability of Citrullus lanatus oleaginous type

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Agricultural Sciences 2013年第7期4卷 32-44页

作者： Yah Gwladys Gnamien Irié Arsène Zoro Bi Yatty Justin kouadio Yves Brostaux jean-Pierre Baudoin Laboratory of Biology and Improving Vegetable Productions Natural Sciences UnitUniversity Nangui Abrogoua(UNA)AbidjanCote d’Ivoire Tropical Crop Husbandry and Horticulture Gembloux Agro-Bio Tech(GxABT)University of LiègeGemblouxBelgium Department of Applied Statistics Computer Science and MathematicsGembloux Agro-Bio Tech(GxABT)University of LiègeGemblouxBelgium

To regenerate adventitious shoots from the cotyledon proximal parts of Citrullus lanatus (Thunb.) Matsum. and Nakai ssp. mucosospermus (Fursa) oleaginous type, different concentrations of MS mineral elements, sucrose, 6-benzylaminopurine (BAP) and agar were tested. Shoot induction proved to depend on the interaction between levels of sucrose, BAP and MS mineral elements in the medium. The medium containing 3/2 strength of MS mineral elements, 35 g/l sucrose and 1 mg/l BAP solidified with 6 g/l agar allowed the production of numerous shoots without a callus phase. After 3 weeks of culture, 76.7% of the cotyledon proximal parts induced shoots with an average of 12.26 shoots per explant and a mean shoot length of 17.13 mm. The induced shoots were directly rooted and thus complete plants ready for acclimatization were obtained using a two steps procedure. Depending on the genotype, the shoot induction from cotyledon proximal parts ranged from 54% to 96%. Rooted plantlets were acclimatized and transferred to field, where they grew well, developed flowers and fruits like seeded plants. The assessment of the genetic stability of the in-vitro-regenerated plantlets by means of an Amplified Fragment Length Polymorphism (AFLP) analysis with the combination of 5 primers revealed no differences between regenerated plantlets and mother plants.

关键词： AFLP Genetic Stability In Vitro Oleaginous Seeds Organogenesis

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Elaboration of a Cartographic Model of Zones Favorable to the Implantation of Water Points: Case of the Watershed of Ehania, South-East of Côte D’Ivoire

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Journal of Water Resource and Protection 2019年第12期11卷 1503-1514页

作者： Dibi Brou Konan-Waidhet Arthur Brice kouadio Boyossro Hélène Savané Issiaka jean Biemi Department of Environment University of Jean Lorougnon Guedé Daloa Cote D’Ivoire Department of Earth Sciences and Mining University of Felix Houphouet Boigny Abidjan Cote D’Ivoire Department of Environment Management University of Nangui Abrogoua Abidjan Cote D’Ivoire

The supply of drinking water from aquifers of base remains problematic because of his complexity. The combination of several methods is more adapted for the mapping of water establishment favorable areas. This study is focused on water points establishment favorable areas mapping. The methods used are remote sensing, pump tests sheets for determining aquifers and saprolites thickness. To determine the recharge, GR2M Method and drainage density has been used. The digital elevation model (DEM) has been used to generate slopes and drainage density maps. The thematic maps obtained combined under GIS to produce water potentiality map. The results obtained have been with exploitation rates. Three classes of potentialities have been identified. These are classes of high potentialities in groundwater which cover approximately 20% of the study area. It occurs mainly in central areas where there are sedimentary formations usually captured by the drilling. These areas are generally located in the central part, mainly in areas where there is low slope, important with a thick layer of saprolites.

关键词： Drinking Water Bases Aquifers GIS Multicriteria Analysis (MCA) Water Points Establishment

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Evaluation of the Effect of Four Levels of Shade on the Growth and Development of Desmodium adscendens with a View to Its Domestication as a Cover Crop in Côte d’Ivoire

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Agricultural Sciences 2024年第11期15卷 1179-1194页

作者： Konan Didier Kouame kouadio Jacques-Edouard Yao Koffi Fernand jean-Martial Kassi kouadio Yann Henoc kouadio Klinnanga Noël Kone Daouda Kone UFR Biosciences UPR Plant Physiology University Flix Houphout-Boigny Abidjan Cte dIvoire UFR Agroforestry UPR Plant Physiology University Jean Lorognon Gud Daloa Cte dIvoire UFR of Biological Sciences University Peleforo Gon Coulibaly Korhogo Cte dIvoire

Desmodium adscendens is a plant in the Fabaceae family that is very important to man, both agronomically and medicinally. It is an important cover crop that contributes to improving soil fertility, reducing the risks associated with crop pests and weeds. However, very little research has been carried out into its domestication for use as a cover crop in banana plantations in Côte d’Ivoire. The general objective of this study was to evaluate, under semi-controlled conditions, the effect of different levels of shade on the growth and development of Desmodium adscendens. The studies were carried out on the experimental site of the UP-Plant Physiology Laboratory. Four shading levels were evaluated: 0 (NO), 20% (N1), 40% (N2) and 60% (N3) light levels. The Desmodium adscendens cuttings used were collected from a 3-month nursery. For each treatment, 10 tubs containing sterilized soil were used, and 50 cuttings were planted. After planting, growth and development parameters were assessed weekly on 10 plants. In addition, yield and fresh and dry mass were measured. Finally, the reproductive cycle of Desmodium adscendens was determined. The results showed that plant growth and development were greatest in plants grown under the 40% shade level, followed by the 20% and 60% shade levels. In contrast, plants in full light showed poor growth and development. The 40% shade level was the most favorable for growing Desmodium adscendens cuttings, with a cycle length of 67 days. Growing Desmodium adscendens under shade with 20% and 40% light levels could be recommended to farmers.

关键词： Desmodium adscendens Shade Levels Cover Crops Domestication—Côte d’Ivoire

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使用面部识别来实现员工签到的应用，该应用能适应随时间变化（年龄、脸型）

使用面部识别来实现员工签到的应用，该应用能适应随时间变化（年...

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作者： kouadio EHOUMAN jean YVES 华北电力大学(北京)

学位级别：硕士

实施考勤登记是在日常业务中的一项重要工作。传统方法普遍使用人工输入,即员工在进入大楼时记录他们的姓名、到达和离开时间,这种方法过于耗时,并且容易受到欺诈行为的影响。为了解决这些问题,本文开发了一种基于面部识别的新型系统,... 详细信息

实施考勤登记是在日常业务中的一项重要工作。传统方法普遍使用人工输入,即员工在进入大楼时记录他们的姓名、到达和离开时间,这种方法过于耗时,并且容易受到欺诈行为的影响。为了解决这些问题,本文开发了一种基于面部识别的新型系统,以简化员工考勤流程。所提出的系统设计了专用应用程序。当员工到达工作场所时,可以便捷地访问应用程序并接受一系列验证步骤。首先,该应用程序会检查员工是否实际存在于公司的经营场所内。如果确认存在,应用程序将会激活设备的摄像头来捕捉员工的面部图像。该系统采用了先进的面部检测和识别技术,分析捕捉到的图像用以识别个人。一旦员工被成功识别,他们的考勤就会被记录下来,系统会将他们的状态更新为“出席”同时记载当前时间和日期。通过面部识别技术实现考勤流程自动化,该系统大大降低了传统手动数据输入方法中相关的错误和欺诈行为的可能性。这种设计的解决方案不仅提高了考勤效率,还提高了考勤机的整体准确性和可靠性。通过消除手动输入的需要,员工可以通过简单的面部扫描无缝记录他们的出勤情况,最大限度地减少管理负担和潜在的差异。该系统能够实时跟踪员工的出勤情况,为监控考勤模式、促进资源分配和加强整体运营管理提供了宝贵的数据。总之,基于面部识别的考勤系统的实现为传统方法所面临的问题提供了一个优异的解决方案。通过利用尖端技术,该系统提高识别准确性,节省了考勤时间,同时降低了欺诈风险,有助于在组织内实现更高效、更可靠的考勤管理流程。

关键词：深度学习 python 图像处理人脸检测人脸识别 CNN PHP

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Detection of Burned Areas through Spectral Indices Analysis of Sentinel-2A Satellite Images in the Abokouamékro Wildlife Reserve (Central, Côte D’Ivoire)

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Open Journal of Applied Sciences 2024年第1期14卷 205-222页

作者： Bob Kouakou kouadio Sié Ouattara Alain Clément jean-Marc Gala Bi Zaouri jean-Luc kouadio Kouassi jean-Luc Edouard Kouakou N’guessan Laboratoire des Sciences et Technologies de la Communication et de l’Information (LSTCI) Institut National Polytechnique Houphou&#235t Boigny (INP-HB) Yamoussoukro C&#244te d’Ivoire Laboratoire des Sciences Agronomiques et Génie Rural Institut National Polytechnique Houphou&#235t Boigny (INPHB) Yamoussoukro C&#244te d’Ivoire Ecole de Géomatique et du Territoire (EGT) Abidjan C&#244te d’Ivoire LARIS SFR MATHSTIC Université d’Angers Angers France Centre Universitaire de Recherche et d’application en Télédétection (CURAT) UFR des Sciences de la Terre et des Ressources Minières Abidjan C&#244te d’Ivoire Laboratoire de Botanique UFR Biosciences Université Félix Houphou&#235t Boigny Abidjan C&#244te d’Ivoire

In Côte d’Ivoire, the recurring and unregulated use of bushfires, which cause ecological damage, presents a pressing concern for the custodians of protected areas. This study aims to enhance our comprehension of the dynamics of burnt areas within the Abokouamékro Wildlife Reserve (AWR) by employing the analysis of spectral indices derived from satellite imagery. The research methodology began with the calculation of mean indices and their corresponding spectral sub-indices, including NDVI, SAVI, NDWI, NDMI, BAI, NBR, TCW, TCG, and TCB, utilizing data from the Sentinel-2A satellite image dated January 17, 2022. Subsequently, a fuzzy classification model was applied to these various indices and sub-indices, guided by the degree of membership α, with the goal of effectively distinguishing between burned and unburned areas. Following the classification, the accuracies of the classified indices and sub-indices were validated using the coordinates of 100 data points collected within the AWR through GPS technology. The results revealed that the overall accuracy of all indices and sub-indices declines as the degree of membership α decreases from 1 to 0. Among the mean spectral indices, NDVI-mean, SAVI-mean, NDMI-mean exhibited the highest overall accuracies, achieving 97%, 95%, and 90%, respectively. These results closely mirrored those obtained by sub-indices using band 8 (NDVI-B8, SAVI-B8, and NDMI-B8), which yield respective overall accuracies of 93%, 92%, and 89%. At a degree of membership α = 1, the estimated burned areas for the most effective indices encompassed 2144.38 hectares for NDVI-mean, 1932.14 hectares for mean SAVI-mean, and 4947.13 hectares for mean NDMI-mean. A prospective approach involving the amalgamation of these three indices could have the potential to yield improved outcomes. This study could be a substantial contribution to the discrimination of bushfires in Côte d’Ivoire.

关键词： Spectral Indices Wildfire Burned Areas Abokouamékro Wildlife Reserve Côte D’Ivoire

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Study of the Ionospheric Effects of Selected Cases of Solar Flares over Abidjan

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Journal of Physical Science and Application 2018年第3期8卷 18-25页

作者： jean Baptiste Ackah Olivier kouadio Obrou Sylvain Malan Ahoua Laboratoire de Physique de l'Atmosphere Universite Felix Houphouet Boigny Abidjan22 B.P.582 Abidjan 22Cote-d'Ivoire

The present study investigates the changes in TEC(total electron content)and ionospheric scintillation index(S4)inferred from the GNSS data recorded at the SCINDA station of Abidjan(Latitude=5.34°N,Longitude=3.90°W)during and after a solar *** the course of 2014,a year of high solar activity,three(3)cases of extreme(X1.66)and moderate(M6.23 and M2.13)solar flares recorded in the months of September and December effects on the ionosphere have been studied using the X ray fluxes,the magnetic parameters(Vx,Bz,Dst),the ionospheric scintillation index S4 and TEC and its ROT(time rate of change).The ROT exhibits a prominent peak between ten(10)and twelve(12)minutes after the occurrence of the maximum peak of the time rate of change of the X-ray flux emitted during the *** ROT maximum value occurs simultaneously with an enhancement of the S4 *** perturbations of the solar flare on the TEC in the SCINDA station of Abidjan occur within 42 to 54 hours after an M-class solar flare and within 46 to 58 hours following an X-Class solar *** magnetic storms resulted from these flares show an increment of 20%on VTEC observed when compared to the average VTEC()computed from the most five(5)quietest days of the selected months.

关键词： TEC ionospheric scintillation solar flare X-ray

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Exposure of Mercury from Gold Ming Area: A Case Study in Tendo and Aby Lagoon in Côte d’Ivoire

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Journal of Environmental Protection 2022年第9期13卷 613-627页

作者： Stéphane jean Claon Serge Kouakou Kouassi Séka Arsène M’bassidje Laurent Kipré Séri Luc Kouakou kouadio Joseph Allico Djaman Public Health and Hydrology Laboratory Félix Houphou&euml t-Boigny University Abidjan C&ocirc te d’Ivoire Water Quality Control and Analysis Laboratory National Drinking Water Office Abidjan C&ocirc te d’Ivoire Biology and Health Laboratory Félix Houphou&euml t-Boigny University Abidjan C&ocirc te d’Ivoire Environmental Sciences Laboratory Nanguy Abrogoua University Abidjan C&ocirc te d’Ivoire Department of Medical and Fundamental Biochemistry Institut Pasteur of C&ocirc te d’Ivoire Abidjan C&ocirc te d’Ivoire

Lagoons of West African countries are seriously threatened by rapid artisanal and small-scale gold mining (ASGM) that exposes lagoons to mercury pollution. In this study, the mercury level in the sediments of the Tendo and Aby lagoons in Côte d’Ivoire had been evaluated. A total of 87 samples from 25 stations located on Tendo and Aby lagoons were analyzed by atomic fluorescence spectrometry. The mean Hg concentrations obtained in the sediments of Tendo and Aby lagoons were 0.89 ± 0.26 mg⋅kg-1 and 0.70 ± 0.18 mg⋅kg-1, respectively. Hg concentrations evaluated in the bays of Tendo and Aby during the dry season were 1.38 ± 0.45 mg⋅kg-1 and 1.07 ± 0.31 mg⋅kg-1, respectively. The minimum and maximum total Hg concentrations in the sediments from 25 stations were 0.04 and 3.56 mg⋅kg-1, respectively. Mercury contamination in lagoons during ASGM poses risks of pollution for the lagoon ecosystem and also poses health risks for the population living near these lagoons.

关键词： ASGM Mercury Sediments Côte d’Ivoire Pollution

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Mortality Factors for Cirrhotics in an Ivorian University Hospital (Ivory Coast)

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Open Journal of Gastroenterology 2020年第9期10卷 231-241页

作者： jean Baptiste Okon Mamadou Diakite Fabrice Ake Olivier Koffi kouadio Amadou Kone Hepato-Gastroenterology Department University Hospital Center of Bouake Bouake Ivory Coast

Background: Cirrhosis, an ineluctable development of chronic liver disease, still has high mortality throughout the world despite many advances in physiopathology and therapy. This high mortality is closely related to the unpredictable course of cirrhosis with numerous complications. Objective: To evaluate the predictive factors of death during cirrhosis. Materials and methods: This is an observational, descriptive study on cirrhotic patients hospitalized in the hepatology unit of the Center Hospitalier Universitaire in Bouake (Ivory Coast) during the period from January 01, 2018 to December 31, 2019. The study focused on the data collected in the medical files (paper format) of hospitalized cirrhotics and the death register of the service. The diagnosis of cirrhosis and the death of the cirrhotic were the main criteria for judgment. The secondary criteria defined were: history of cirrhosis, reasons for consultation, clinical signs, biological signs, complications of cirrhosis and the treatment received. The relationship between the parameters was expressed as an odds ratio (OR) with a 95% confidence interval (CI) and the significance threshold fixed at p 0.05. Results: The study retained 206 files of

关键词： Cirrhosis Hepatocellular Carcinoma Mortality CHU Bouake

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