Effect of glycosides extract of the medicinal plant Glycyrrhiza glabra L. from the region of Mlilli (southeast of Algeria) on the growth of some human pathogenic bacteria

Licorice is a perennial plant of the family Fabaceae, species Glycyrrhiza, and genre "Glycyrrhiza glabra L. "Takes from the region of Mlilli (southeast of Algeria,). The objective of this work is to study the effect of the glycoside extracted from the medicinal plant Glycyrrhiza glabra L. on three bacterial strains: Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. Preliminary phytochemical study of the crude glycoside extract is based on the antibacterial test. This extract was tested in vitro by the method of agar diffusion (GN) and the diffusion in liquid medium (MH) on three bacterial species. The results show that our extract has an inhibitory effect on the Gram positive strain (Staphylococcus aureus ATCC23) and the Gram negative strain (Pseudomonas aeruginosa ATCC53), but no effect on Escherichia coli ATCC22 strain. From the results obtained, we suggest the use of licorice in daily live to treat from certain infectious diseases.