Plants have always been used by people for therapeutic purposes. They are still the main source of therapeutic substances in developing countries. Crateva adansonii, a member of the Capparidaceae family, is a medicina...Plants have always been used by people for therapeutic purposes. They are still the main source of therapeutic substances in developing countries. Crateva adansonii, a member of the Capparidaceae family, is a medicinal plant with antibacterial properties used in Benin. The aim of this study was to assess the efficacy of an aqueous extract of C. adansonii on bacterial strains isolated from chronic wounds in the Ouinhi population. To achieve this, the bacterial flora present in chronic wounds was identified using the Ikram method (2014) coupled with the API Remoel One method. The antibacterial properties of the aqueous extract of C. adansonii on the microbial strains isolated were then assessed by determining the Inhibition Diameters (ID), the Minimum Inhibitory Concentrations (MIC) and finally the Minimum Bactericidal Concentrations (MBC). A total of eighty (80) strains were isolated and identified on the basis of morphological, cultural and biochemical characteristics. The species S. Aureus species accounted for the largest proportion (67.5%). Other species such as Listeria sp, Pseudomonas proteus, S. epidermidis and Bacillus cereus, Citrobacter freundii, Steno maltophila;Axin calcoaceticus, E. coli, K. pneumonia, Lem. richardii, Salmonella paratyphi A, Salmonella sp, Shigella sp were determined in variable proportions. At a concentration of 10 mg/ml, only S. aureus was sensitive to contact with the extract. However, at 20 mg/ml, 89% of strains were sensitive and 11% very sensitive. The highly sensitive strains are Salmonella sp and E. coli. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) are 20 mg/ml and 40 mg/ml respectively. The MBC/MIC ratio of the aqueous mixture of Crateva adansonii (Capparidaceae) varied from 1.2 to 2, with a bactericidal effect on 100% of the strains tested.展开更多
In Benin, the preservation of maize is a real problem involving important physical and chemical properties losses. Physical losses are due by rodents, pests and insects and chemical losses are mainly due to fungal inf...In Benin, the preservation of maize is a real problem involving important physical and chemical properties losses. Physical losses are due by rodents, pests and insects and chemical losses are mainly due to fungal infection. Several methods, products and practices are used by farmers to overcome these problems. The methods used do not always control the losses caused by fungal infection. The objective of the study was to make a bibliographic synthesis of the impacts induced by the items, practices and methods used to overcome the chemical losses of maize. In the search for information, the library of the Ministry of Agriculture, Livestock and Fisheries was consulted;the archives of the library of the University of Abomey-Calavi and the National Institute of Agricultural Research of Benin were also consulted. Thus, chemicals such as sofagrain, Pyrimiphos-Methyl, Thiamethoxam, Pyrimiphos-Methyl, Permethrin, Deltamethrin, fumigant are used to control physical attacks on maize. Ash and plants species such as neem tree (<em>Azadirachta indica</em>) are generally used for the preservation and storage of maize seeds. In addition, chemicals such as arsenious anhydride and zinc phosphide are used for the preservation of corn. The use of these molecules and chemical products has negative impacts on human health and the environment. Of all the methods used, no treatment is still popularized for the reduction of the chemical losses caused by the fungal infection in corn storage.展开更多
文摘Plants have always been used by people for therapeutic purposes. They are still the main source of therapeutic substances in developing countries. Crateva adansonii, a member of the Capparidaceae family, is a medicinal plant with antibacterial properties used in Benin. The aim of this study was to assess the efficacy of an aqueous extract of C. adansonii on bacterial strains isolated from chronic wounds in the Ouinhi population. To achieve this, the bacterial flora present in chronic wounds was identified using the Ikram method (2014) coupled with the API Remoel One method. The antibacterial properties of the aqueous extract of C. adansonii on the microbial strains isolated were then assessed by determining the Inhibition Diameters (ID), the Minimum Inhibitory Concentrations (MIC) and finally the Minimum Bactericidal Concentrations (MBC). A total of eighty (80) strains were isolated and identified on the basis of morphological, cultural and biochemical characteristics. The species S. Aureus species accounted for the largest proportion (67.5%). Other species such as Listeria sp, Pseudomonas proteus, S. epidermidis and Bacillus cereus, Citrobacter freundii, Steno maltophila;Axin calcoaceticus, E. coli, K. pneumonia, Lem. richardii, Salmonella paratyphi A, Salmonella sp, Shigella sp were determined in variable proportions. At a concentration of 10 mg/ml, only S. aureus was sensitive to contact with the extract. However, at 20 mg/ml, 89% of strains were sensitive and 11% very sensitive. The highly sensitive strains are Salmonella sp and E. coli. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) are 20 mg/ml and 40 mg/ml respectively. The MBC/MIC ratio of the aqueous mixture of Crateva adansonii (Capparidaceae) varied from 1.2 to 2, with a bactericidal effect on 100% of the strains tested.
文摘In Benin, the preservation of maize is a real problem involving important physical and chemical properties losses. Physical losses are due by rodents, pests and insects and chemical losses are mainly due to fungal infection. Several methods, products and practices are used by farmers to overcome these problems. The methods used do not always control the losses caused by fungal infection. The objective of the study was to make a bibliographic synthesis of the impacts induced by the items, practices and methods used to overcome the chemical losses of maize. In the search for information, the library of the Ministry of Agriculture, Livestock and Fisheries was consulted;the archives of the library of the University of Abomey-Calavi and the National Institute of Agricultural Research of Benin were also consulted. Thus, chemicals such as sofagrain, Pyrimiphos-Methyl, Thiamethoxam, Pyrimiphos-Methyl, Permethrin, Deltamethrin, fumigant are used to control physical attacks on maize. Ash and plants species such as neem tree (<em>Azadirachta indica</em>) are generally used for the preservation and storage of maize seeds. In addition, chemicals such as arsenious anhydride and zinc phosphide are used for the preservation of corn. The use of these molecules and chemical products has negative impacts on human health and the environment. Of all the methods used, no treatment is still popularized for the reduction of the chemical losses caused by the fungal infection in corn storage.
