Utilisation de deux plantes médicinales dans la lutte biologique Pituranthos chloranthus « L’ghezzah » et Ruta chalepensis « Fidjel »

Abstract

To contribute in the valorisation of medicinal plants which are famous by its therapeutic virtues. We have made a research about microbiological activity of the essential oils and Hydrosol from the aerial parts of plants Pituranthos chloranthus and Ruta chalpansis, summer plants subjected to an extraction by steam distillation to the hydrodistilateur. Depending on the technique used the extraction yield is variable, it is 0.25 % and 0.07% for the essential oils of chloranthus Pituranthos and Ruta chalpansis respectively. The antimicrobial activity was evaluated on four bacterial strains: Escherichia coli, Enterobacter cloacae, Pseudomonas aeruginosa and Staphylococcus aureus. the obtained results shows that the : The hydrosol of chloranthus Pituranthos plant and Ruta chalpansis presents an interesting antibacterial effect mainly against Escherichia coli, Pseudomonas aeruginosa and Enterobacter cloacae. While this hydrosol proved inactive against Staphylococcus aureus