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Isolation and Identification of Indigenous Yeasts from “Rabilé”, a Starter Culture Used for Production of Traditional Beer “dolo”, a Condiment in Burkina Faso

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Advances in Microbiology 2019年第7期9卷 646-655页

作者： Iliassou Mogmenga Yerobessor Dadire marius k.somda Ibrahim keita Lewis I.Ezeogu Jerry Ugwuanyi Alfred S.Traore Laboratory of Biotechnology for Food and Nutritional Sciences Research Center in Biological Food and Nutrition Sciences(CRSBAN)Department of Biochemistry and MicrobiologyUniversity Ouaga I Pr Josph KY-ZERBOOuagadougouBurkina Faso Department of Microbiology Faculty of Biological SciencesUniversity of NigeriaNsukkaNigeria Laboratory of Applied Molecular Biology Faculty of Sciences and TechniquesUniversity of Sciences Techniques and Technologies of BamakoBamakoMali

Rabilé is a ferment of dolo, a traditional sorghum beer of Burkina Faso and it is harvested at the end of dolo fermentation process. It is a significant source of proteins and it is used like a condiment and food seasoning by some communities. The present study characterized and identified the yeasts isolated from Rabilé. A total of 70 samples were collected from 7 localities of Burkina Faso with dolo sellers according to the ethnic groups. The aerobic mesophilic flora count from Rabilé varied from 8.34 ± 0.72 to 10.07 ± 0.51 log10 CFU·g-1 and yeast varied from 7.24 to 8.28 log10 UFC·g-1. Based on morphological, cultural, sexual and biochemical (carbon and nitrogen assimilation) profiles, 50 yeast strains were identified and found to belong to 4 genera and 7 species. Saccharomyces cerevisiae was found as most predominant yeasts species of yeast in of Rabilé with 64 %, Rhodotorula muciloginosa, (8%), Candida pseudorhangii (6%), Candida heliconiae (12%), Candida utilis (4%), Shizosaccharomyces pombe (4%) and Sporobolomyces odoratus (2%). This activity has been carried out in the Laboratory of Biotechnology for Food and Nutritional Sciences, University Ouaga I Pr Josph kY-ZERBO, Burkina Faso, and it was done from June to October 2018.

关键词： Rabilé dolo Yeasts Saccharomyces cere-visiae Burkina Faso

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Valorization of Agricultural Waste: Theoretical Estimation and Experimental Biomethane Yield from Cashew Nut Hulls

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Journal of Sustainable Bioenergy Systems（可持续生物质能源系统） 2020年第4期

作者： Mahamadi Nikiema marius k.somda Joseph B.Sawadogo Dayéri Dianou Alfred S.Traor Aboubakar S.Ouattara

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Assessment of Maize Contamination by Aflatoxin in Burkina Faso: A Review of Methods of Control

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Food and Nutrition Sciences（食品与营养科学） 2023年第2期

作者： marius k.somda Yerobessor Dabire Iliassou Mogmenga Assietta Ouattara Mahamadi Nikiema Henriette B.Mihin Agbémébia Y.Akakpo Donatien kabore Alfred S.Traore Mamadou H.Dicko

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Nutritional Composition of Four Underexploited Wild Fruits in Mali

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Food and Nutrition Sciences 2022年第1期13卷 26-40页

作者： Mamadou Abdoulaye konare Cheickna Cisse Nouhoum Diarra marius k. somda Mamadou Wele Rokia Sanogo Laboratory of Plant and Food Biochemistry and Biotechnologies (LBVA_B) Faculty of Sciences and Techniques (FST) University of Sciences Techniques and Technologies of Bamako (USTTB) Bamako Mali African Center of Excellency in Bioinformatics (ACE-B) University of Sciences Techniques and Technologies of Bamako (USTTB) Bamako Mali Centre for Research in Biological Sciences Food and Nutrition (CRSBAN) University Joseph Ki-Zerbo (UJKZ) Ouagadougou Burkina Faso Department of Pharmaceutical Sciences Faculty of Pharmacy University of Sciences Techniques and Technologies of Bamako (USTTB) Bamako Mali Department of Traditional Medicine (DMT) National Institute of Research in Public Health (INSRP) Bamako Mali

Malnutrition and food insecurity are major concerns for the Malian authorities. The objective of this study was to strengthen the knowledge about the nutritional and physicochemical values of four underutilized edible wild fruits picked at two cities belonging to different bioclimatic zones of Mali. The physicochemical and nutritional parameters were performed using standard methods. The findings revealed that all these parameters varied from one fruit to another, this outcome could be associated with the provenances of the wild fruits (p-value R. sudanica fruits to 5.34 g/100g DM for those of B. aegyptiaca, all these samples were being harvested from Sikasso. The highest concentrations of vitamins are C (150,800 to 151,000 μg/100g DM), E (1,310 to 1,350 μg/100g DM) and A (38 to 40 μg/100g DM) respectively for the fruits of Z. mauritiana, B. aegyptiaca and S. senegalensis. In addition, these fruits would constitute a potential source of minerals such as iron, phosphorus and calcium. Thereby, these fruits are promising raw materials to be used against the malnutrition linked to the micronutrients defici

关键词： Wild Fruits Nutritional Values Provenances Malnutrition Food Insecurity

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Valorization of Agricultural Waste: Theoretical Estimation and Experimental Biomethane Yield from Cashew Nut Hulls

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Journal of Sustainable Bioenergy Systems 2020年第4期10卷 113-130页

作者： Mahamadi Nikiema marius k. somda Joseph B. Sawadogo Dayéri Dianou Alfred S. Traoré Aboubakar S. Ouattara Research Center of Biological Food and Nutritional Sciences (CRSBAN) Joseph KI-ZERBO University Ouagadougou Burkina Faso Fada N’Gourma University Fada N’Gourma Burkina Faso Nazi BONI University Bobo Dioulasso Burkina Faso National Center of Scientific and Technological Research (CNRST) Ouagadougou Burkina Faso

Biomethane potential production from cashew nut hulls, an agricultural waste, was carried out using old and fresh hulls as substrates. Samples were taken from old hulls (around 8 years old) and fresh hulls produced in cashew scale transformation units at Bobo Dioulasso/Burkina Faso. Physicochemical parameters showed that cashew hulls can be a good candidate for anaerobic digestion. But high acidity, total phenols and lignin tenor could be a constraint for anaerobic bacteria. Theoretical biochemical methane potential showed high value of 666.937 CH4 L. (Kg VS)-1 and 526.206 CH4 L. (Kg VS)-1 for crushed fresh and powdered old hulls, respectively. Experimental biochemical methane potential showed significantly low potential of 1.982 CH4 L. (Kg VM)-1 and 46.840 CH4 L. (Kg VM)-

关键词： Agricultural Waste Cashew Shells Anaerobic Digestion Bio-Energy Burkina Faso

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Quality of Human Urine Used as Fertilizer: Case of an Ecological Sanitation System in Ouagadougou Peri-Urban Areas-Burkina Faso

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Journal of Environmental Protection 2014年第6期5卷 467-474页

作者： Joseph M. Makaya Aly Savadogo marius k. somda Jean-Baptiste Bour Nicolas Barro Alfred S. Traoré Laboratory of Virology National Reference Center for Enteric Viruses University Hospital of Dijon Dijon France Research Center for Biological Food and Nutritional Sciences Research and Training Unit Life and Earth Sciences University of Ouagadougou Ouagadougou Burkina Faso.

The use in agriculture of excreta from urine-diversion toilets can be an alternative solution to the lack of sanitation and high costs of mineral fertilizers inherent to developing countries. The objective of this study was to evaluate the hygienic quality of urine used as fertilizer through an ecological sanitation system in Ouagadougou peri-urban areas. Chemical and microbiological analyses were performed in urine samples taken before and after thirty (30) days of storage in jerry cans exposed to sunlight. The concentrations of 7.0 g/l;3.5 and 9.6 g/l of ammonia nitrogen for mean, minimum and maximum respectively, are obtained in unstored urine samples. These concentrations did not practically vary with the storage. On average, values of other chemical parameters analyzed in stored urine were as follows: pH, 8.8;phosphorus (P), 0.3 g/l;potassium (k), 1.9 g/l;total dissolved solids (TDS), 21.0 g/l;cadmium (Cd), 154.3 μg/l;copper (Cu), 5.2 μg/l;lead (Pb), 15.2 μg/l;chromium (Cr), 6.1 μg/l;nickel (Ni), 154.0 μg/l. Escherichia coli, staphylococci, enterococci, Salmonella and spores of Clostridium perfringens were detected in unstored urine samples, with 26% of fecal contamination rate. The time of storage (30 days) under sunlight was enough for almost all bacteria removal in urine samples. Although the fertilizing value of urine was confirmed, it would be important to take account of the best practices on applying in soils, because of the high TDS contents. Also, the risk linked to micropollutants in urine-based fertilizers could be negligible in view of low quantities. The results obtained in this study prove that after 30 days of exposure to sunlight urine collected via eco-toilet becomes bacteriologically sanitized, and can therefore be used to fertilize soils. However, it is necessary to demonstrate the inactivation of other groups of enteric microorganisms in human urine during storage.

关键词： Human Urine Storage Hygienic Quality Micropollutants Enteric Bacteria Fertilizer

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Production of Vinegar Mango Using Acetobacter tropicalis CRSBAN-BVA1 and CRSBAN-BVk2 Isolated from Burkina Faso

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Food and Nutrition Sciences 2023年第1期14卷 26-37页

作者： Assiètta Ouattara marius k. somda Cheik A. T. Ouattara Yerobessor Dabiré Mahamadi Nikiéma Alfred S. Traoré Aboubakar S. Ouattara Laboratoire de Microbiologie et de Biotechnologies Microbiennes (LAMBM) Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN) Département de Biochimie et Microbiologie Université Joseph Ki-Zerbo Ouagadougou Burkina Faso Laboratoire de Biochimie Biotechnologie Technologie Alimentaire et Nutrition (LABIOTAN) Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN) Département de Biochimie et Microbiologie Université Joseph Ki-Zerbo Ouagadougou Burkina Faso Université de Fada N’Gourma Institut Supérieur du Développement Durable (ISDD) Fada N’Gourma Burkina Faso

Production and quality of vinegar from mango juice was evaluated using a two steps production procedure. The first step of fermentation was done using Saccharomyces cerevisae kVL013 for 7 days. The second step, an acetic fermentation was realized using two acetic acid bacteria: A. tropicalis CRSBAN-BVA1 and A. tropicalis CRSBAN-BVk2 for 21 days. Several parameters of the vinegar produced such as physico-chemical and sensory properties were determined. Microbial density during each step was monitored. Results showed that pH, alcoholic and acetic acid contents of vinegar were respectively 2.97%, 7% and 4.54% g/ml respectively by using A. tropicalis CRSBAN-BVA1 and 3.02%, 7% and 4.32% g/ml with A. tropicalis CRSBAN-BVk2. Sensory evaluation revealed that the vinegar was acceptable to the panellists. Results of microbial density showed that the maximum concentration of cell biomass produced was 4.32 × 108 and 4.25 × 108 CFU/ml respectively for CRSBAN-BVA1 and CRSBAN-BVk2.

关键词： Mango Saccharomyces cerevisae Acetobacter tropicalis Fermentation Vinegar

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Optimization of Biogas Production from Organic Municipal Waste: Development of Activated Sludge as Digesters Inoculum

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Journal of Environmental Protection 2017年第13期8卷 1674-1687页

作者： Mahamadi Nikièma marius k. somda kifouli Adéoti Désiré Traoré Farid Baba-Moussa Fatiou Toukourou Dayéri Dianou Alfred S. Traoré Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN) Département de Biochimie-Microbiologie Université Ouaga I Pr Joseph KI-ZERBO 03 BP 7131Ouagadougou 03 Burkina Faso Laboratoire de Microbiologie et Technologies Alimentaires (LAMITA) Département de Biologie végétale Université d’Abomey-Calavi B.P. 526 Abomey-Calavi Bénin Centre National de la Recherche Scientifique et Technologique (CNRST) 03 BP 7192 Ouagadougou 03 Burkina Faso Ouagadougou Burkina Faso

This study is a contribution to the optimization of organic fraction of municipal waste bioconversion into biomethane, by activated sludge production as inoculum for digesters. The wastewater (WW) and cow dung (CD) samples were taken from the slaughterhouse of Ouagadougou town, Burkina Faso. Different mixtures were made, enriched with mineral solution and cellulose at 5% (w/v) as: 10% CD + 90% WW (C7), 30% CD + 70% WW (C6), 50% CD + 50% WW (C5), 70% CD + 30% WW (C4), 90% CD + 10% WW (C3), 100% CD (C2) and 100% WW (C1). The pH evolution and biogas (CH4 and CO2) production were followed for 25 days. Cultures tend to acidify with increase in cow dung proportion. Biogas production was significantly higher (p kalinity (TAC) as 41.06%, 47.02%, 1320 mg acetic acid/L, 3036 mg Acetic acid/L and 520 mg CaCO3/L, 1310 mg CaCO3/L. Mixture C6 was the best medium for microorganism proliferation stability with 3.5 × 105 UFC/ml of methanogens bacteria. It also possessed buffering capacity, which prevents acidification of medium during VFAs production.

关键词： Bioconversion Municipal Waste Activated Sludge Biomethane Burkina Faso

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Assessment of Maize Contamination by Aflatoxin in Burkina Faso: A Review of Methods of Control

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Food and Nutrition Sciences 2023年第2期14卷 135-147页

作者： marius k. somda Yerobessor Dabire Iliassou Mogmenga Assietta Ouattara Mahamadi Nikiema Henriette B. Mihin Agbémébia Y. Akakpo Donatien kabore Alfred S. Traore Mamadou H. Dicko Laboratory of Biochemistry Biotechnology Food Technology and Nutrition (LABIOTAN) Department of Biochemistry and Microbiology University Joseph KI-ZERBO Ouagadougou Burkina Faso Laboratory of Microbiology and Microbial Biotechnology (LAMBM) Department of Biochemistry and Microbiology University Joseph KI-ZERBO Ouagadougou Burkina Faso Department Food Technology (DTA) Institute of Research in Applied Sciences and Technology (IRSAT) National Center of Scientific and Technological Research (CNRST) Ouagadougou Burkina Faso

Aflatoxin contamination of crops is frequent in warm regions across the globe, including large areas in sub-Saharan Africa and Burkina Faso. A?atoxins and fumonisins are among the mycotoxins that have been increasingly reported to affect health and productivity of livestock globally. It cuts across the value chain, affecting farmers, markets, and finally consumers. However, a?atoxin contamination is a threatening issue in these staples and its negative effects on human health, most especially on infants and young children, are very alarming. Among the cereals in Burkina Faso, the maize is more vulnerable to contamination by Aspergillus sp. The contamination of maize by the aflatoxin is the main cause affecting production of agricultural sector, food security and regularity. Many factors are responsible for its proliferating. Therefore aflatoxins reduction in cereals such as maize is a serious concern for quality and safety. This review aimed to highlight the factors influencing a?atoxins contamination, and methods of reduction.

关键词： Maize Aflatoxin Quality Health Risk Burkina Faso

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Assessment of Heavy Metals and Microbial Pollution of Lettuce (Lactuca sativa) Cultivated in Two Sites (Paspanga and Tanghin) of Ouagadougou, Burkina Faso

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Journal of Environmental Protection 2019年第3期10卷 454-471页

作者： marius kounbèsiounè somda Saran Samake Donatien kabore Mahamadi Nikiema Iliassou Mogmenga Yerobessor Dabire Assietta Ouattara Ibrahim keita Henriette B. Mihin Agbémébia Yawovi Akakpo Alfred S. Traore Laboratory of Microbiology and Microbial Biotechnology Research Center in Biological Food and Nutrition Sciences (CRSBAN) Department of Biochemistry and Microbiology University Ouaga1 Pr Joseph KI-ZERBO Ouagadougou Burkina Faso Laboratory of Food Technology Department of Biochemistry and Microbiology University Ouaga 1 Pr Joseph KI-ZERBO Ouagadougou Burkina Faso Laboratory of Applied Molecular Biology (LBMA) Faculty of Technics and Sciences University of Sciences Technics and Technologies of Bamako Bamako Mali Department of Food Technology National Center of Scientific and Technological Research Ouagadougou Burkina Faso Laboratoire of Quality Control and Normalisation (LCQN) Institut of Agronomic Research of Togo Lome Togo

Environmental pollution can have detrimental effects on crop yield and its consumers. The current study was designed to investigate the potential human health risks associated with the consumption of lettuce crop contaminated with toxic heavy metals and microbiological status. Irrigated water, soil and lettuce were analyzed by AAS technics for heavy metals including Cd, Cr, Cu, Mn, Ni, Pb and Zn. Transfer factor (TF), daily intake of metals (DIM) and health risk index (HRI) were also calculated. Microbial analysis was carried out for the presence foodborne pathogens. The results showed that the heavy metals contents were higher in the soil than wastewater and the vegetables. Heavy metals ranged (mg·kg-1) for Cd (1.27 to 2.93), Cr (7.28 to 7.38), Cu (0.91 to 1.70), Mn (0.29 to 6.60), Ni (1.74 to 2.16), Pb (1.32 to 1.69), Zn (3.08 to 3.79);and were higher than the WHO maximum limit permissible (ML) in vegetables. HRI TF values designated an enhanced bio-contamination. Microbial numeration revealed the presence of spoiler and pathogenic microorganisms. The lettuce tested was not safe for human use, especially for direct consumption by human beings.

关键词： Heavy Metal Microorganisms Pollution Lactuca sativa Risk Assessment Burkina Faso

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