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

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

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Evaluation of Total Polyphenol and Flavonoid Contents of Fresh and Dried Pepper (Piper nigrum) from the Ivory Coast

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Food and Nutrition Sciences 2023年第3期14卷 149-155页

作者： Coulibaly moussa Yoboue Antoinette soro Doudjo Assidjo Nogbou Emmanuel Department of Nutrition and food Technology Group (GNTA) Laboratory of Industrial Processes of Synthesis and Environment (LAPISEN) Felix Houphouet-Boigny National Polytechnic Institute Yamoussoukro Côte d’Ivoire

The growing interest in the potential biological activity of polyphenols and flavonoids has highlighted necessity to assess their content in fresh and dried pepper from Ivory Coast. The total polyphenol content was determined using the Folin-Ciocalteu test and the total flavonoid content was also measured spectrophotometrically using the aluminum chloride colorimetric test. The results obtained indicate the total polyphenol levels of fresh and dried peppers are higher in the samples collected in Danane (0.8 ± 0.05 mg GAE/100g) and in Azaguie (0.4 ± 0.08 mg GAE/100g). The lowest concentrations were obtained with fresh and dried pepper samples collected in N’douci (0.22 ± 0.02 mg GAE/100g) and in PK 103 (0.22 ± 0.02 mg GAE/100g). The highest content of total flavonoids was revealed in the locality of PK 103 (1.85 ± 0.62 mg EC/100g) followed by the locality of Maféré (1.37 ± 0.25 mg EC/100g) respectively for black pepper and green pepper. Then, the lowest flavonoid contents were obtained in the dried pepper of Lopou (0.57 ± 0.03 mg EC/100g) and the fresh pepper of PK 103 (0.47 ± 0.03 mg EC/100g). The results obtained highlight the importance of these black spices as promising sources of phenolic compounds and could be used in pharmaceutical treatments and in food.

关键词： Content Flavonoids Polyphenols Piper nigrum

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Evaluation of Total Polyphenol and Flavonoid Contents of Fresh and Dried Pepper (Piper nigrum) from the Ivory Coast

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Food and Nutrition Sciences（食品与营养科学） 2023年第3期

作者： Coulibaly moussa Yoboue Antoinette soro Doudjo Assidjo Nogbou Emmanuel

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