L'étude de l’activité antibactérienne d’Artemisia herba alba.

Abstract

The aim of this work is to study the antimicrobial potency of the extract of Artemisia herba alba harvested in the eastern region of Mostaganem against 5 microorganisms tests, Escherichia coli ATCC 25922, Candida albicans ATCC 1023, Pseudomonas Aeruginosa ATCC 27853, Salmonella typhi ATCC 14028 et Staphylococcus aureus ATCC 33862. The results of the antagonist activity expressed by the diameter of inhibition zones using the AWDT well diffusion test as well as the minimum inhibitory concentration (MIC) differ from one species to another. The results of the AWDT test were of the order of 36.5 ± 0.5, 30.5 ±1.5, 21.5 ± 1.5,20 ± 1 and 18.5 ± 0.5 mm, respectively with respect to Escherichia coli ATCC 25922, Candida albicans ATCC 10231, Pseudomonas Aeruginosa ATCC 27853, Salmonella typhi ATCC 14028a. No antimicrobial activity was noted against Staphylococcus aureus ATCC 33862. The MIC was recorded with Escherichia coli ATCC 25922, Candida albicans ATCC and Pseudomonas Aeruginosa ATCC 27853, Salmonella typhi ATCC 14028 is in the order of 100 mg / μl, while the MIC with minimal inhibitory effect has been noted with Staphylococcus aureus ATCC 33862 is of the order of 50 mg / ml. These results suggest that Artemisia herba alba extract has a very important inhibitory effect against certain pathogens.