Qualitative and quantitative analysis of (Mentha longifolia, Gundelia tournefortii, Allium schoenoprasum, and Prunus amygdalus) were carried out where water and alcoholic extracts, tested using different tests and reagents. The results showed that each of these plants were containing (phenol, glycosides, tannins, flavonoids, Saponins, carbohydrates, and alkaloids) with different amounts.
... [Show full abstract] Accordingly, the preparation and determination of alkaloidal, phenolic, flavonoidal extracts were done. The activity of these plants extracts were tested on two strains of standard bacteria Echerichia coli and Staphylacoccus aureus. The results showed that water and alcoholic extracts (cold and hot) for Allium schoenoprasum and Gundelia tournefortii posses the highest antibacterial activity against gram positive (S. aureus) and gram negative (E. coli) bacteria. All extracts of Prunus amygdalus showed no antibacterial activity against gram positive and gram negative bacte ria.