检索结果-南通市图书馆

Some Processing Steps and Uses of Cashew Apples: A Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2023年第1期14卷 38-57页

作者： Lou Boli Caroline Sahie doudjo soro Kisselmina Youssouf Kone Nogbou Emmanuel Assidjo Kouassi Benjamin Yao Ecole Doctorale Polytechnique (EDP) of Institut National Polytechnique Félix Houphouë t-Boigny (INP-HB) Yamoussoukro C&#244 te d’Ivoire

In addition to the cashew nut, which is the main product, the cashew tree also produces the cashew apple which is considered a by-product. The cashew apple has a high nutritional potential. Indeed, it is rich in vitamin C, carotenoids, dietary fibers, vitamins, sugars and mineral elements where are essential for human nutrition. In addition to its nutritional quality, the cashew apple has technological advantages: the edible part of the fruit is between 85% and 100% higher than that of other traditional tropical fruits, and its juicy and sweet flesh is free of seeds or pits. In addition, very large volumes are available. As a result, the development of this fruit represents a considerable economic challenge. This paper first presents the cultivation of cashew trees and the bibliography of the work done on cashew juice. The favorable conditions for cashew tree cultivation and the planting method were presented. Then, the study highlights the work done on the physicochemical characteristics of cashew apples, the effect of the growing area, the variety and the stage of maturity on its characteristics. It also shows the influence of the processing steps on the nutritional value and organoleptic quality of the cashew apple;as well as the methods of clarification, stabilization, concentration and dehydration. Some uses of cashew apple were reviewed: beverage, food, substrate, bioethanol, nutraceutical, food additive and agro materials.

关键词： Cashew Apple Processing Use

Study of the Stability during Aging of Mixed Cashew and Papaya Wine Produced with Palm Wine Sediment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2022年第2期13卷 181-194页

作者： Jean Ives Kablan Gnoumou doudjo soro Blanchard G. A. Adou Gnagne Ernest K. Koffi Food Chemical and Environmental Process Sciences Félix Houphou&#235 t-Boigny National Polytechnic Institute Yamoussoukro Ivory Coast Laboratory of Biochemistry Agriculture and Biological Ressource Valorization Faculty of Biosciences Félix Houphou&#235 t-Boigny University Abidjan Ivory Coast

During the ageing of wine, many reactions occur generating enormous modifications. After pasteurization (65°C/5minutes) of the mixed cashew apple and papaya wine, physicochemical, microbiological and sensory analyses were performed during the two (2) months of aging. The results showed no significant variation between the young wine and the one aged for two (2) months for pH, titratable acidity, alcoholic percentage and density. However, for ESR, vitamin C, total anthocyanins and aroma a significant difference (p ≤ 0.05) was observed. This difference was observed during the first 45 days and then stabilized until the sixtieth day. Values ranged from 6.3°B to 5.5°B;from 84.65 ± 0.6 to 77.9 ± 0.2 mg/100mL;from 165.5 ± 0.8 to 50.25 ± 0.3 mg/100mL for RDE, vitamin C and total anthocyanins respectively. For aroma, there was more development between the young wine and the one aged for two months. Concerning the sanitary quality, there is a progressive decrease of the different germs during the aging period. Except for yeasts, which are undetectable, the load of aerobic mesophilic germs and lactic acid bacteria varies respectively from 3.5 × 105 to 1.4 × 105 CFU/mL and from 1.5 × 105 to 1 × 105 CFU/mL.

关键词： Stability Aging Wine Sediment Papaya Cashew Apple

Production of Cashew Apple Wine Enriched with Hibiscus sabdariffa Extracts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2023年第8期14卷 720-729页

作者： Esaïe W. Koui doudjo soro Jean Ives K. Gnoumou Nogbou Emmanuel Assidjo Kouassi Benjamin Yao UMRI 58 Chimical Food and Environemental Process Sciences Felix Houphouet-Boigny National Polytechnic Institute Yamoussoukro C&#244te d’Ivoire Laboratory of Industrial Process of Synthesis and Environment (LAPISEN) Felix Houphouet-Boigny National Polytechnic Institute Yamoussoukro C&#244te d’Ivoire

This study focuses on enhancing the value of agricultural products by developing a process to produce wine from cashew apples enriched with extracts from Hibiscus sabdariffa. The formulation consisted of a blend of cashew apple juice and Hibiscus calyxes in a ratio of 90:10 (w/w). The Hibiscus calyxes were added at three different stages: before, during, and after fermentation. The physico-chemical analysis of the resulting wines revealed a pH range of 3.073 ± 0.005 to 3.583 ± 0.015 and acidity levels ranging from 4.018 ± 0.028 to 5.628 ± 0.059 g/L. The alcoholic strength ranged from 13.54% ± 0.036% to 13.86% ± 0.04%, with a soluble dry extract of 7.2 ± 0.25 to 8.1 ± 0.28 °B. Regardless of the stage of Hibiscus calyx addition, the fermentation kinetics and physico-chemical parameters met the standards set for wines.

关键词： Vinification Cashew Apple Hibiscus sabdariffa Fermentation

Photovoltaic waste management in sub-Saharan Africa:current practices in Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Waste Disposal and Sustainable Energy 2024年第2期6卷 271-282页

作者： Kodami Badza Yrebegnan Moussa soro Marie Sawadogo Laboratoire Energies Renouvelables et EfficacitéEnergétique Institut International d'Ingenierie de I'Eau et de I'Environnement(2iE)01 BP 594 OuagadougouBurkina Faso

Sub-Saharan Africa is witnessing a proliferation of photovoltaic(PV)waste due to the increasing number of solar PV power *** waste(panels,batteries,electrical cables,mounting structures,and inverters)consists of elements such as mercury,cadmium,chromium,lead,copper,aluminum,fluorinated compounds,and plastics that are toxic to human health and the environment if a proper management system is not *** many studies worldwide have focused on PV waste management,very few have been conducted in sub-Saharan *** study aims to investigate the current PV waste management system in Burkina Faso,determine stakeholder profiles,and propose strategies to enhance the existing *** research,interviews,questionnaires,and field visits were used in the *** survey showed that young people,mainly under 30 years of age and with a primary education,dominate(70%)in terms of PV waste collection and repair activities,while the more technical recycling and export activities are carried out mainly(88%)by stakeholders older than 40 years and with a secondary education(60%).Among the older stakeholders,100%are aware of the hazardous nature of PV waste,whereas 36%are young *** an environmental perspective,the main source of contamination observed is the release of lead-rich sulfuric acids into water and soil during the collection and repair *** the recycling of batteries and electrical cables,toxic fumes are emitted into the air,and recycling residues rich in toxic substances are *** reduce risks to human health and the environment when managing PV waste,the introduction of legislation,the multiplication of collection points and appropriate infrastructures,the training and awareness-raising of stakeholders,and the extended responsibility of manufacturers are *** on the economic feasibility of setting up formal management structures are needed to complete this work.

关键词： Photovoltaic waste Sub-Saharan Africa Waste management Recycling Batteries Incineration

Optimising Energy Consumption in SD-DCN Networks (Software Defined-Data Center Network)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Applied Sciences 2024年第8期14卷 2223-2235页

作者： Narcisse Tahi Etienne soro Pacôme Brou Olivier Asseu UMRI STI INPHB INPHouphout Boigny Yamoussoukro Cte dIvoire Ecole Suprieure Africaine des Technologies de lInformation et de la Communication (ESATIC) LASTIC Laboratory of ESATIC Abidjan Cte dIvoire

Over the last decade, the rapid growth in traffic and the number of network devices has implicitly led to an increase in network energy consumption. In this context, a new paradigm has emerged, Software-Defined Networking (SDN), which is an emerging technique that separates the control plane and the data plane of the deployed network, enabling centralized control of the network, while offering flexibility in data center network management. Some research work is moving in the direction of optimizing the energy consumption of SD-DCN, but still does not guarantee good performance and quality of service for SDN networks. To solve this problem, we propose a new mathematical model based on the principle of combinatorial optimization to dynamically solve the problem of activating and deactivating switches and unused links that consume energy in SDN networks while guaranteeing quality of service (QoS) and ensuring load balancing in the network.

关键词： DCN Optimisation Energy Consumption QoS SDN

Radiation Dose from CT-Scan of Childhood’s Head: Results of the First Ivorian Survey in a Single Study Site

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Applied Mathematics and Physics 2024年第5期12卷 1725-1732页

作者： Koutoua Joseph Anouan Adjoua Sonia Dje Idrissa Garba Yoh Esther soro Nuclear Physics and Radiation Protection Team Training and Research Unit&#8212Sciences of the Structures of Matter and Technology University F&#233lix Houphouet-Boigny of Abidjan Abidjan C&#244te d&#8217Ivoire Department of Medical Pediatrics and Specialties University Hospital of Angr&#233 Abidjan C&#244te d&#8217Ivoire Department of Radiodiagnosis and Medical Imaging University Hospital of Angr&#233 Abidjan C&#244te d&#8217Ivoire

Objectives: This study aims to evaluate the level of X-ray doses used in childhood’s head as Local Diagnostic Reference Levels (LDRLs) in computed tomography (CT) at a university hospital in Côte d’Ivoire. The Diagnostic Reference Level (DRL) have been set up and used to prevent unusually high radiation doses used in radiology departments and is therefore an optimization tool for practices and procedures in medical X-ray imaging for the radiation protection of patients. Methods: A prospective study of volume CT dose index (CTDIvol) and dose length product (DLP) was performed on images of childhood’s head obtained from a CT-scanner of 64 bars equipped with the tube current modulation capability and manufactured by Hitachi Medical System. 122 CT-scan data from 55 childhood’s head were analyzed. The scan data were stratified in four age groups: Results: The 75th percentile of CTDIvol and DLP (set as LDRL) obtained with respect to the stratified age groups are: 22.5 mGy and 452.5 mGy∙cm, 27.7 mGy and 690.6 mGy∙cm, 28 mGy and 722.4 mGy∙cm, 33.6 mGy and 736.8 mGy∙cm respectively. These outcome values increase with respect to the age of pediatric patients and are comparable to DRLs values obtained internationally. Conclusions: Obtaining good image quality while using low dose in children’s head computed tomography for radiation protection require to setup more surveys in Côte d’Ivoire for regional and national DRL. We proposed through this survey LDRLs in terms of CTDIvol and DLP, comparable to international DRLs values. This survey will be strengthened by additional surveys in order to obtain national DRLs for the radiation protection of the child patient in Côte d’Ivoire.

关键词： Radiation Protection Computed Tomography Imaging Childhood Diagnostic Reference Levels

Corrective Effect of the Angle of Incidence of the Magnetic Field Intensity on the Performance (Series and Shunt Resistances) of a Bifacial Silicon Solar Cell

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and Power Engineering 2024年第9期16卷 313-323页

作者： Idrissa Sourabié Mahamadi Savadogo Boubacar soro Ramatou Saré Christian Zoundi Martial Zoungrana Issa Zerbo Laboratoire de Chimie Analytique de Physique Spatiale et nergtique (L@CAPSE) Ecole Doctorale Sciences et Technologies Universit Norbert ZONGO Koudougou Burkina Faso Laboratoire dEnergies Thermiques Renouvelables (L.E.T.RE) Ecole Doctorale Sciences et Technologies Universit Joseph KI-ZERBO Ouagadougou Burkina Faso

This article presents a three-dimensional analysis of the impact of the angle of incidence of the magnetic field intensity on the electrical performance (series resistance, shunt resistance) of a bifacial polycrystalline silicon solar cell. The cell is illuminated simultaneously from both sides. The continuity equation for the excess minority carriers is solved at the emitter and at the depth of the base respectively. The analytical expressions for photocurrent density, photovoltage, series resistance and shunt resistance were deduced. Using these expressions, the values of the series and shunt resistances were extracted for different values of the angle of incidence of the magnetic field intensity. The study shows that as the angle of incidence increases, the slopes of the minority carrier density for the two modes of operation of the solar cell decrease. This is explained by a drop in the accumulation of carriers in the area close to the junction due to the fact that the Lorentz force is unable to drive the carriers towards the lateral surfaces due to the weak action of the magnetic field, which tends to cancel out as the incidence angle increases, and consequently a drop in the open circuit photovoltage. This, in turn, reduces the Lorentz force. These results predict that the p-n junction of the solar cell will not heat up. The study also showed a decrease in series resistance as the incidence angle of the magnetic field intensity increased from 0 rad to π/2 rad and an increase in shunt resistance as the incidence angle increased. His behaviour of the electrical parameters when the angle of incidence of the field from 0 rad to π/2 rad shows that the decreasing magnetic field vector tends to be collinear with the electron trajectory. This allows them to cross the junction and participate in the external current. The best orientation for the Lorentz force is zero, in which case the carriers can move easily towards the junction.

关键词： Angle of Incidence Magnetic Field Intensity Bifacial Polycrystalline Silicon Solar Cell Series Resistance Shunt Resistance

Distribution, Mobility, and Health Risks Assessment of Trace Metals in River Sediments from Intense Agricultural Activity Areas in West Africa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science and Chemical Engineering 2024年第8期12卷 12-42页

作者： Ahbeauriet Ahmed Ouattara Maley-Pacôme soro Albert Brou Kouadio Horo Koné Albert Trokourey Dpartment des Sciences et Technique Universit Alassane Ouattara Bouak Cte dIvoire Laboratoire de Thermodynamique et de Physico-Chimie du Milieu Universit Nangui Abrogoua Abidjan Cte dIvoire Laboratoire de Chimie Physique Universit Flix Houphout Boigny Abidjan Cte dIvoire

The economy of West African countries is mainly based on agriculture. However, the trace metal(loid)s contamination status in rivers is relatively unknown in the region. In this work, 45 surface sediments collected from the Bandama, Comoé, and Bia Rivers in south and south eastern Côte d’Ivoire (West Africa), were analyzed for total metal concentrations and chemical speciation. The results showed that the river sediments were considerably contaminated by Cd and moderately contaminated by As, Cu, Pb, and Zn. Significant spatial variations were observed among the stations but not between the rivers. Metals Cd and Cu were likely to cause more ecological risks. The speciation analysis unravelled that the metal(loid)s partitioned mainly in the residual fraction, with the potential mobile fraction varying from 14% to 28%. The study calls for establishment of strict policies relative to the application of fertilizers and agrochemicals and mining activities to protect the environment and human health risks.

关键词： River Sediment Trace Metal (Loid)s Multivariate Analysis Potential Ecological Risk Assessments Sequential Extraction Geochemical Indices

Evaluation of Soil Quality under Cocoa Trees in the Marahoué Region (Central-Western Côte d’Ivoire)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Soil Science 2024年第9期14卷 537-553页

作者： Ferdinand Gohi Bi Zro Lacina Yeo Bessimory Toure Martinez Arnauth Guei Dogniméton soro Sidiky Bakayoko Dpartement dAgropdologie Universit Jean Lorougnon Gud Daloa Cte dIvoire

This study, which assesses the quality of soils under cocoa trees in the Marahoué region of Côte d’Ivoire, is being carried out against a backdrop of declining crop yields due to a number of factors, including the loss of soil fertility. The aim was to identify homogeneous groups of soils in terms of fertility and propose sustainable management methods for each group. The study was carried out on twenty-four cocoa orchards belonging to the SCOOP KAPATCHIVA cooperative, spread over eight sectors. A morphological characterisation of the soils was carried out in the field, followed by physico-chemical laboratory analyses of soil samples taken in the field. Soil fertility was analyzed on the basis of these two groups of data. The results showed that soil depths were generally high, except in some high altitude areas, where soils were often enriched in ferromagnesian elements and compacted. The texture of the soils varied between loamy and sandy-loamy, influencing cocoa production. Indeed, the soils of the plots with high production were looser and without ferromagnesian concretions, while those of the plots with low production were more gravelly and compact. Biological activity in the upper soil layer (0 - 30 cm) was notable with an abundance of termites and earthworms. The organic matter and nitrogen content varies considerably between sectors, directly impacting soil fertility. The soils were slightly acidic and showed significant differences in the levels of exchangeable magnesium and potassium, and not at all for phosphorus which appeared at very low doses. Chemical analysis also revealed that nutrient balance was a key factor in orchard productivity, with varying ratios of calcium, magnesium and potassium. Knowledge of these results made it possible to make recommendations for soil management with a view to improving cocoa yields in the study area.

关键词： Soil Chemical Balances Fertility Cocoa Farming Marahoué Region