Heavy metals are dangerous pollutants for ecosystems, especially aquatic ecosystems, because of their concentration in certain living organisms and their presence in the food chain. This study aims to evaluate the bac...Heavy metals are dangerous pollutants for ecosystems, especially aquatic ecosystems, because of their concentration in certain living organisms and their presence in the food chain. This study aims to evaluate the bacteriological, metallic (Pb, Cd, As) and toxicological risks associated with houin logbo (toho lake) in the municipality of Lokossa. The results obtained concern everyone: Toho lake is contaminated by <em>Escherichia coli </em>and<em> faecal enterococci</em>, concerning the evaluation of the metallic contamination we have: water (Pb: 0.1032, Cd: 0. 046, As: 0);sediment (Pb: 14.79, Cd: 1.27, As: 0.800);<em>Oreochromis niloticus </em>(Pb: 0.143, Cd: 0.087, As: 0.466);soils (Pb: 8.528, Cd: 2.755, As: 0.833);<em>Solanum lycopersicum</em> (Pb: 0.098, Cd: 0.066, As: 0). Consumption of lake fish (<em>Oreochromis niloticus</em>) and market garden produce (<em>Solanum lycopersicum</em>) exposes populations, especially children, to the risk of As and Cd poisoning.展开更多
<strong>Objective: </strong>The present was initiated to study the antibacterial properties of the <i>Crateva adansonii</i> DC extract on germs commonly identified in skin and digestive infecti...<strong>Objective: </strong>The present was initiated to study the antibacterial properties of the <i>Crateva adansonii</i> DC extract on germs commonly identified in skin and digestive infections in Benin as well as the reversion of resistance to these aforementioned germs. <strong>Method: </strong>The bacteria’s sensitivity test to extracts was carried out by the microdilution method in liquid medium as well as the MIC and the reversion of bacterial resistance. For the determination of the MBC, this technique is used coupled with spreading on agar medium. <strong>Results: </strong>The results show an antibacterial activity of the extract with MICs between 0.625 - 5 mg/ml. The CMB of <i>Enterococcus faecalis</i> ATCC 29212 is 2.5 mg/ml while that of Methicillin-resistant <i>Staphylococcus aureus</i> and <i>Staphylococcus epidermidis</i> CIP 8039 is 5 mg/ml. The reversion of bacterial resistance has shown a synergy of action between our extract and conventional antibiotics.展开更多
文摘Heavy metals are dangerous pollutants for ecosystems, especially aquatic ecosystems, because of their concentration in certain living organisms and their presence in the food chain. This study aims to evaluate the bacteriological, metallic (Pb, Cd, As) and toxicological risks associated with houin logbo (toho lake) in the municipality of Lokossa. The results obtained concern everyone: Toho lake is contaminated by <em>Escherichia coli </em>and<em> faecal enterococci</em>, concerning the evaluation of the metallic contamination we have: water (Pb: 0.1032, Cd: 0. 046, As: 0);sediment (Pb: 14.79, Cd: 1.27, As: 0.800);<em>Oreochromis niloticus </em>(Pb: 0.143, Cd: 0.087, As: 0.466);soils (Pb: 8.528, Cd: 2.755, As: 0.833);<em>Solanum lycopersicum</em> (Pb: 0.098, Cd: 0.066, As: 0). Consumption of lake fish (<em>Oreochromis niloticus</em>) and market garden produce (<em>Solanum lycopersicum</em>) exposes populations, especially children, to the risk of As and Cd poisoning.
文摘<strong>Objective: </strong>The present was initiated to study the antibacterial properties of the <i>Crateva adansonii</i> DC extract on germs commonly identified in skin and digestive infections in Benin as well as the reversion of resistance to these aforementioned germs. <strong>Method: </strong>The bacteria’s sensitivity test to extracts was carried out by the microdilution method in liquid medium as well as the MIC and the reversion of bacterial resistance. For the determination of the MBC, this technique is used coupled with spreading on agar medium. <strong>Results: </strong>The results show an antibacterial activity of the extract with MICs between 0.625 - 5 mg/ml. The CMB of <i>Enterococcus faecalis</i> ATCC 29212 is 2.5 mg/ml while that of Methicillin-resistant <i>Staphylococcus aureus</i> and <i>Staphylococcus epidermidis</i> CIP 8039 is 5 mg/ml. The reversion of bacterial resistance has shown a synergy of action between our extract and conventional antibiotics.
