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High-Yielding and Carotenoid-Rich Clones Identification among Thirty-One Cassava Clones with Colored Flesh

American Journal of Plant Sciences 2021年第9期12卷 1445-1458页

作者： N’Zue Boni Coulibaly Idriss Koudous koffi kouamé guillaume Essis Brice Sidoine Dibi Konan Evrard Brice Sie Raoul Sylvère Centre National de Recherche Agronomique (CNRA) Baouké C&#244 te d’Ivoire Université Nangui Abrogoua UFR Sciences de la Nature Unité de Phytotechnie et Amélioration Génétique Abidjan 02 C&#244te d’Ivoire

Cassava is the second most important food crop produced and consumed in Côte d’Ivoire, after yam. White-fleshed varieties, which are low in total carotenoids, are widespread, while coloured-fleshed varieties (yellow to orange), carotenoid-rich, are rare. However, the consumption of carotenoid-rich cassava varieties could help to alleviate health problems related to vitamin A deficiency. This study aims to identify high agronomic performance, carotenoid-rich and versatile cassava varieties among 31 clones introduced from IITA. They were compared to three controls, Bocou2, Yacé and Bonou2, according to agronomic and technological parameters. Results found that out of the 31 clones, six (I082425, I084157, I084563, I085894, I083774 and I070520) were more productive than the control Bocou2 (46.01 ± 14.88 t·ha-1);the clone I083774 had the highest yield (55.88 ± 6.16 t·ha-1). Twenty-one clones had dry matter contents, ranging from 37% to 41%, significantly similar to Yacé control (42.70%). Thirteen clones had highest total carotenoid contents than the control Bocou2. Clones I084157 and I082425 recorded the highest total carotenoid contents with 17.57 ± 1.92 and 18.39 ± 1.19 μg·g-1 respectively. Overall 31 tested clones were fibrous to varying degrees while 27 clones had mild or neutral post-cooking flavours and 17 clones had poor cooking. The clone I084157 is the best compromise of agronomic and technological desired traits.

关键词： Manihot esculenta Carotenoid-Rich Coloured-Flesh Cassava High Yied Provitamin A

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Production of Yam Tubers Using Seed Tubers from Vitroplants Regenerated from Aerial Stems in the Yam Species Dioscorea alata (L.) and Dioscorea cayenensis-rotundata (L. & P.) in Côte d’Ivoire

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Advances in Bioscience and Biotechnology 2024年第3期15卷 184-194页

作者： koffi Honoré kouamé Kouakou Marius Konan Kouadio Ignace Kouassi Kouablan Edmond koffi Assanvo Simon-Pierre N’Guetta Department of des Science and Technology University Alassane Ouattara of Bouaké Bouaké C&#244te d’Ivoire Plant Production Research Unit Department of Natural Sciences University Nangui Abrogoua Abidjan C&#244te d’Ivoire Central Biotechnology Laboratory National Center for Agronomic Research (NCAR) Abidjan C&#244te d’Ivoire Genetics Laboratory of Bioscience Research Unit University Félix Houphou&#235t Boigny (UFHB) Abidjan C&#244te d’Ivoire

The aim of this study is to produce large quantities of yam tubers in the field from seed tubers derived from vitroplants regenerated from aerial stem cuttings and farmers’ tuber seeds. Seed tubers from ten yam cultivars, including five from Dioscorea alata (cDa083, cDa053, cDa115, cDa150 and cDa266) and five from Dioscorea cayenensis-rotundata (cDr015, cDr027, cDr150, cDr206 and cDr148) with distinct agro-morphological characteristics, were used as material. A completely randomized block design with 3 replications was used. In each block, all cultivars and seed types were represented. When put into cultivation, the tubers produced by the vitroplants all germinated and gave 100% healthy plants, compared with 86% to 100% healthy plants for the seed tubers produced by the farmers. Yields per hectare ranged from 10 to 25 tonnes for seed tubers produced by in vitro plants, and from 4 to 9 tons for seed tubers produced by farmers. Seed tubers from vitroplants can therefore be recommended to farmers as a solution to the problem of seed tuber unavailability.

关键词： Yams Vitroplants Seed Tubers Yields

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Experimental Assessment of the Thermal Performance of Two Corrugated Metal Roofs

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Open Journal of Applied Sciences 2024年第9期14卷 2374-2392页

作者： kouamé Jean-Louis Kouakou Ekoun Paul Magloire koffi Bi Tra Désiré Zinla Prosper Gbaha Laboratoire des Procds Industriels de Synthse de lEnvironnement et des Energies Nouvelles Institut National Polytechnique Felix Houphout-Boigny Yamoussoukro Cte dIvoire

This experimental study is a contribution to the search for solutions to reduce indoor heat gain through sheet metal roofing in hot weather. It has evaluated the thermal impact of two different sheet metal roofs inside of two identical test buildings in sunny weather and cloudy weather conditions. Test building 1 has a single sheet corrugated roof and the building 2 is covered with roof made from top to bottom with corrugated sheet metal, a 12 mm thick serpentine copper tube in which water is circulated, a sheet of aluminium foil acting as a heat reflector, a 4 cm thick polystyrene panel and a 1.5 cm thick plywood. A maximum reduction of 15.1˚C in the temperature of the inner face of the test Building 2 roof was obtained comparatively to the temperature of the inner face of the test Building 1 roof consisting of a single sheet of metal at the warmest hours. In addition, the simple corrugated sheet metal roof of the test building generates high and varied temperatures inside the building. Whereas the proposed heat recovery roof favours low and relatively uniform temperatures inside the building. The proposed sheet metal roof construction technique is very effective in reducing the heat gain through the roof considerably;thus improving the thermal comfort inside sheet metal roofed dwellings. Hot water has been produced by recovering heat from the metal sheet of the roof of test building 2. The temperature of the hot water produced reached of 39˚C. This study could be also an alternative for the reduction of energy consumption due to the use of mechanical means for cooling of sheet metal roofed houses and the reduction of the use of fossil fuels for domestic hot water production.

关键词： Metal Roof Corrugated Time Lag Decrement Factor

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Surgical Site Infections in Trauma and Orthopaedics at Bouaké Teaching Hospital (Côte d’Ivoire)

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Open Journal of Orthopedics 2024年第9期14卷 381-390页

作者： Loukou Blaise Yao koffi Léopold Krah Aya Adelaïde Natacha Kouassi kouamé Innocent M’bra kouamé Jean-Eric Kouassi Michel Kodo Department of Trauma and Orthopaedics Bouak Teaching Hospital Bouak Cte dIvoire

Background: Surgical site infections are serious healthcare problems. The aim was to describe the epidemiological, diagnostic, therapeutic, and prognostic aspects of surgical site infections in Trauma and Orthopaedics at Bouaké Teaching Hospital. Method: This retrospective, descriptive, and analytical study was conducted from January 2019 to December 31, 2021. The data studied included prevalence, initial lesions, type of surgical intervention, type of SSI, bacteria involved, treatment, and outcomes. Results: Forty-four (11%) of the 399 patients included in the study developed a surgical site infection. The mean age was 27 years, with 36 male and 8 female. Initial lesions were predominantly open fractures (n = 31;70%), with a mean delay of 48 hours for surgical management. Emergency interventions accounted for 70% (n = 31) of cases. The NNISS infection risk score was 1 in 80% (n = 35) of cases. Superficial infections (n = 34;77%) appeared early, on a mean 6 days postoperatively. Bacteriological analysis primarily identified Pseudomonas aeruginosa (n = 10;23%), sensitive to Imipenem and Chloramphenicol but resistant to Amoxicillin-clavulanic acid, Ceftriaxone, Gentamicin, and Ciprofloxacin. Multidrug-resistant bacteria were found in 89% (n = 8) of cases, with all bacteria resistant to Ceftriaxone. Surgical revision was performed in 10 patients (23%), primarily involving debridement with hardware retention (n = 7;70%). Chloramphenicol was the most commonly used antibiotic post-antibiogram (61%). Outcomes were favourable in 98% of cases. Identified risk factors included the type of lesion according to NRC classification, the delay in managing open fractures, and the NNISS score. Conclusion: The prevalence of surgical site infection was 11%, favoured by the delayed operation of open fractures.

关键词： Surgical Site Infection Open Fractures Pseudomonas aeruginosa Ceftriaxone

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Properties and Characterization of Two Clays Raw Material from Mountain District (West of Côte d’Ivoire) for Use in Low-Carbon Cements

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Advances in Materials Physics and Chemistry 2024年第8期14卷 137-145页

作者： Wedjers Max Robin Manouan Bi Irié Hervé Gouré Doubi Lébé Prisca Marie-Sandrine Kouakou Atta kouamé Brice koffi Alfred Niamien kouamé Namory Méité UFR Sciences et Technologies Universit de Man Man Cte dIvoire UFR Sciences Biologiques Universit Peleforo GON COULIBALY Korhogo Cte dIvoire Laboratoire de constitution et de raction de la matire Universit Felix Houphout-Boigny Abidan Cte dIvoire

This work was devoted to the study of the physico-chemical properties of two clay minerals from the Mountain District (West Côte d'Ivoire) referenced ME1 and ME2. These samples were characterized by the experimental techniques, such as X-ray diffraction (XRD), Infrared spectroscopy (IR), Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES), Differential Thermal Analysis and Thermogravimetry (DTA-TG), Brunauer, Emett and Teller method (BET), laser particle size analysis and Scanning Electron Microscope (SEM). The main results of these analyses reveal that the two clay samples mainly contain quartz (52.91% for ME1 and 51.72% for ME2), kaolinite (36.60% for ME1 and 41.6% for ME2) and associated phases, namely goethite and hematite (13.47% for ME1 and 11.00% for ME2). The specific surface values obtained for samples ME1 and ME2 are 34.78 m2/g and 29.18 m2/g respectively. The results obtained show that the samples studied belong to the kaolinite family. After calcination, they could have good pozzolanic activity and therefore be used in the manufacture of low-carbon cements.

关键词： Quartz Kaolinite Mountain District Low-Carbon Cements

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Osteoarticular Lesions of the Shoulder Girdle by Hippopotamus Bite: Highly Septic Lesion

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Open Journal of Orthopedics 2024年第2期14卷 114-121页

作者： Jr Pierre Germain Ochou Achié Jean Régis Akobe Yao Aboh Ganyn Robert Arnaud Assere kouamé Jean-Eric Kouassi Adelaïde Aya Natacha Kouassi Ibrahim Soumahoro Zolopégué Marcel Soro Sédi Loues De Randolphe Akpro Gbalé Yannick Blé kouamé Innocent M’bra Loukou Blaise Yao Bada Juste Léopold NiaoréSery koffi Léopold Krah Michel Kodo Department of Orthopaedic and Traumatological Surgery Bouaké University Hospital Bouaké Ivory Coast Raoul Follereau Institute Manikro Centre Bouaké Ivory Coast

Hippopotamus bites are rare in medical consultations, despite several studies exposing their aggressive character. A case of a hippopotamus bite on the shoulder of a fisherman has been reported. In addition to the osteoarticular aspect representing a therapeutic problem, the infectious aspect was marked by sepsis, with a death in less than 48 hours. Based on this observation, a protocol for the initial management of large animal bites was submitted.

关键词： Bite Hippopotamus Septic Shock

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Honey Dressing of Cutaneous Wounds on Limbs in the Traumatology Orthopaedics Department of Bouaké University Hospital

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Open Journal of Orthopedics 2024年第9期14卷 411-420页

作者： Achié Jean-Régis Akobe Aya Adélaide Natacha Kouassi Ibrahim Soumahoro Zolopégué Marcel Soro Sedy Louess De Randolphe Akpro Bakary Traoré Almamy Kamate Axel Fabrice Essehin Yao Aboh Ganyn Robert Arnaud Assere Lanciné Kaba kouamé Innocent M’bra Loukou Blaise Yao Bada Justin Léopold Niaoré Sery koffi Léopold Krah Michel Kodo Orthopaedics-Traumatology Department of the University Hospital of Bouak Bouak Ivory Coast Plastic and Reconstructive Surgery Department of the University Hospital of Bouak Bouak Ivory Coast

The study evaluated the effectiveness of honey dressings in healing recent skin wounds with soft tissue loss on limbs. Conducted over a year with 60 patients, results showed a significant reduction in wound size and early healing, with complete recovery on average within 29 days. The study supports honey as a viable wound treatment.

关键词： Healing Honey Limbs Loss of Substances

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Microbiological and chemical hazards of commercial attieke (a fermented cassava product) produced in the south of Côte d’Ivoire

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Food Quality and Safety 2019年第3期3卷 187-190页

作者： kouamé Kohi Alfred Bouatenin koffi Maizan Jean Pau Djeni N’Dede Théodore Dje koffi Marcellin Department of Food Sciences and Technology Laboratory of Biotechnology and food MicrobiologyUniversity of Nangui AbrogouaAbidjanCôte d’Ivoire Food Security Research Group Centre Suisse de Recherche ScientifiqueAbidjanCote d’Ivoire

Objectives:Information on the distribution and presence of microbiology and chemical hazard of commercial attieke(a fermented cassava product)produced in the south of Côte d’Ivoire were *** and Methods:Microbiological analyses and chemical were carried out,which included the total viable bacteria,Staphylococcus aureus,Salmonella and Bacillus spores,heavy metal(pb,Cd,Mn,Fe,Cu,and Cr).Results and Conclusions:The results revealed that the viable bacteria counts ranged from in all of *** aureus counts in the samples were comprised between(1.8±0.4)10^(2)(Jacqueville localitie)and(4.3±1.8)10^(3)(Abidjan localitie).While that of Bacillus cereus was ranged from(1.1±0.9)10^(2)(Adzopélocalitie)and(5.1±3.2)10^(2)(Abidjan localitie).Salmonella *** not *** levels of Pb in all samples were between 2.2±0.1 mg/kg(Grand-lahou localitie)and 4.5 mg/kg±0.15(Abidjan localitie)while the Cd levels of the samples varied between 0.02±0.1 mg/kg(Adzopélocalitie)and 0.07±0.1 mg/kg(Divo localitie).The levels of Cr in the samples were comprised between 0.1±0.03 mg/kg(Adzopélocalitie)and 0.95±0.1 mg/kg(Abidjan localitie)while Fe(7.3±1.5 mg/kg)and Cu(1.7±0.2 mg/kg)levels were the highest,respectively in Sikensi and Grand-Lahou *** from Divo localitie contained high amounts of Mn(1.6±0.1 mg/kg).The occurrence of some microbiological and chemical hazard that commercial attieke collected in Cote d’Ivoire may act as a reservoir of pathogenic micro-organisms and heavy metal for human.

关键词： attieke heavy metal microbiogical and chemical hazard

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Morphological Variability of Neglected and Underutilized Legumes (NULs) Collection from Côte d’Ivoire

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American Journal of Plant Sciences 2020年第2期11卷 226-244页

作者： Léonie Clémence Kouonon kouamé guillaume koffi koffi Adjoumani Koudougnon Alice Estère Goba Université Nangui Abrogoua Unité de Phytotechnie et Amélioration Génétique Abidjan Cote d’Ivoire Ecole Normale Supérieure d’Abidjan Abidjan Cote d’Ivoire

In order to characterize neglected and underutilized legumes seeds (NULs), prospection, collection and characterization were carried out in five administrative regions from Cote d’Ivoire. Two thousand and fifty-four accessions were collected. NULs cultivation is done mainly by women (88.1% compared to 11.9% of men). Productors distinguish 22 morphotypes of NULs based on seeds shapes, colors and patterns. Morphological traits of the collected morphotypes revealed a significant phenotypic polymorphism. Quantitative analyses showed a clear structure of accessions;three main groups were revealed. The first group contains accessions with large and thick seeds, but a low index shape opposite to group II with high index shape. Seeds of group III are characterized by small width and thickness, but a high shape index. Analyses of qualitative traits revealed five groups characterized by heterogeneous or homogeneous coloured integument, inked or elevated edge of hilum, presence or absence of eye.

关键词： Neglected Legumes Characterization Quantitative Traits Qualitative Traits

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Prevalence and Factors Associated with Intestinal Metaplasia in Chronic Helicobacter pylori Gastritis in a Country with High Endemicity: Ivory Coast Case

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Open Journal of Gastroenterology 2023年第12期13卷 401-410页

作者： Hatrydt guillaume Dimitri kouamé Lisiane Mewetieh Kouassi Olivier Claver koffi Bathaix Fulgence Mamert Yao Medical Sciences Training and Research Unit of Abidjan Félix Houphou&#235t-Boigny University Abidjan Ivory Coast Hepatology and Gastroenterology Unit Yopougon University Hospital Abidjan Ivory Coast

Context/Objective: Few studies have been carried out in a country with high endemicity for Helicobacter pylori (H. pylori) infection in Sub-Saharan Africa looking for the association of intestinal metaplasia (IM) with chronic gastritis. We hypothesize that IM is correlated with the intensity of H. pylori infection in a country with high endemicity, Ivory Coast. The objective of this study was to determine the prevalence of intestinal metaplasia in chronic H. pylori gastritis in Ivory Coast. Methods: This was a prospective, cross-sectional, multicenter study, carried out over a period of 5 months, in the reference hospital centers of Abidjan, specialized in Gastroenterology. All patients who had undergone Gastroscopy with biopsies according to the criteria of the Sydney System for the anatomopathological study, those with chronic gastritis and/or H. pylori intestinal metaplasia on histology and in whom all the parameters of the Sydney system classification had been well informed. The quantitative variables were expressed by their means accompanied by their standard deviations and the qualitative variables by their numbers and percentages. Chi-square and Fischer tests were used to look for associations between variables. The significance level was set at 5%. Results: 152 patients were retained. The mean age was 44.9 ± 12.9 years. The prevalence of intestinal metaplasia was 11.8%. In univariate analysis, no significant association was found between clinical and pathological sociodemographic factors (age, sex, ethnicity, educational level, profession) and intestinal metaplasia in chronic Helicobacter pylori gastric cases. In multivariate analysis we found that prolonged use of Proton Pump Inhibitors (PPIs) and a history of Gastroesophageal Reflux Disease (GERD) were significantly associated with the absence of IM. Conclusion: Chronic H. pylori gastritis is the main risk factor for intestinal metaplasia. Prolonged use of PPIs and a history of GERD were significantly iden

关键词： Helicobacter Pylori Chronic Gastritis Intestinal Metaplasia Ivory Coast

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