Kossi Koumaglo

Propriétés antimicrobiennes de trois plantes psammophiles du littoral togolais menacées de disparition

Abstract Pharmacological studies of leaves of three species threatened of the togolese coastal ecosystems (Conocarpus erectus L., Dodonaea viscosa (L) Jacq. and Scaevola plumieri (L) Vahl.) prove their utilisation in the local pharmacopoeia. Hydro-ethonolic extract of D. viscosa leaves is active on B. subtilis, P. aeruginosa, S. aureus and specially on C. albicans at 12.5 mg/ml. The extract of C. erectus shows activity on S. aureus and P. aeruginosa and that of S. plumieri on C. albicans. These activities should be supported by tanins, flavonoids and saponins found in these extracts.

Maize Fungal Growth Control with Scopoletin of Cassava Roots Produced in Benin

The chemical contamination of food is among the main public health issues in developing countries. With a view to find new natural bioactive products against fungi responsible for chemical contamination of staple food such as maize, the antifungal activity tests of scopoletin extracted from different components of the cassava root produced in Benin were carried out. The dosage of scopoletin from parts of the root (first skin, second skin, whole root, and flesh) was done by High Performance Liquid Chromatography. The scopoletin extract was used to assess the activity of 12 strains (11 strains of maize and a reference strain). The presence of scopoletin was revealed in all components of the cassava root. Scopoletin extracted from the first skin cassava root was the most active both as inhibition of sporulation (52.29 to 87.91%) and the mycelial growth (36.51–80.41%). Scopoletin extract from the cassava root skins showed significant inhibitory activity on the tested strains with fungicide concentration (MFC) between 0.0125u2009mg/mL and 0.1u2009mg/mL. The antifungal scopoletin extracted from the cassava root skins may be well beneficial for the fungal control of the storage of maize.

EVALUATION DE L’ACTIVITE ANTIMICROBIENNE DE MOMORDICA CHARANTIA (CUCURBITACEAE), PSIDIUM GUAJAVA (MYRTACEAE) ET PTELEOPSIS SUBEROSA (COMBRETACEAE)

Innovation is the application of new knowledge and its materialization. Thus it ensures the companys ability to cope with changes in the business environment and the ability to survive in the global competitive environment. As a result, innovation saves natural resources, provides safe and more efficient transport and production. Innovations change the style of work life, place emphasis on the importance of education, creativity, communication and collaboration. However, innovations are associated with a number of problems. They require high costs of the research and development and they face the risks during implementation. This paper describes specific experience with the application of principles and tools of logistics, project management and mainly the application of management system created for the streamlining not only the process of preparation and implementation of the specific innovation project, but also for the streamlining the operation of research and development workplace which implement innovative projects.

EVALUATION DES ACTIVITÉS ANTIMICROBIENNES DE TRIDAX PROCUMBENS (ASTERACEAE), JATROPHA MULTIFIDA (EUPHORBIACEAE) ET DE CHROMOLAENA ODORATA (ASTERACEAE)

Innovation is the application of new knowledge and its materialization. Thus it ensures the companys ability to cope with changes in the business environment and the ability to survive in the global competitive environment. As a result, innovation saves natural resources, provides safe and more efficient transport and production. Innovations change the style of work life, place emphasis on the importance of education, creativity, communication and collaboration. However, innovations are associated with a number of problems. They require high costs of the research and development and they face the risks during implementation. This paper describes specific experience with the application of principles and tools of logistics, project management and mainly the application of management system created for the streamlining not only the process of preparation and implementation of the specific innovation project, but also for the streamlining the operation of research and development workplace which implement innovative projects.