Bioeffect of Myrtus commmunis leaves Extracts and the Essential Oil on Some Microrganis Isolated from human

Abstract

The inhibition activity was tested for the extracts of Myrtus communis leaves which included the extract( aqueous, ethanol, acetonic, petroleum ether, chloroformic )as well as the essential oils for the leaves isolated by distillation apparatus steam in the growth some pathogenic kinds of bacteria and by using Sensitivity tests including Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus which were Isolated from patient attendance to the Ibn-Sina Teaching hospital, Ibn-Al-Ather hospital for children. The microorganis were isolated by using selective media and were diagnosed by microbiologcal method and the biochemical tests.The results indicated that all the extracts possessed prohibition activity towards the positive and negative germs with various prohibition diameters according to the kind of extract,and the nature of the effective components, and focus gradation. The alcoholic extract showed higher prohibition activity on the germs compared to the other extracts. The essential oil showed prohibition activity for both positive and negative bacteria, but its effect was higher on the positive micro-organis - in all used concentrations.