Phenolic Composition, Antioxidant and Antibacterial Activities of Extract from Flowers of Rosa damascena from Morocco

Rosa damascena is referred to as the queen of roses due its ornamental, flavoring, and perfuming uses, along with recognized use in therapy. This study aimed investigate total phenols flavonoids contents, phenolic compounds, antioxidant antibacterial properties hydroethanolic extract from flowers, collected Middle Atlas Morocco (Khenifra). The were assessed using gallic acid quercetin standards, compounds characterized HPLC-PDA-ESI/MS. activity was evaluated by two methods, namely ferric reducing assay power capacity. broth microdilution method employed evaluate against four bacteria (Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, Listeria monocytogenes). Up 16 belonging tannins positively identified extract. latter displayed high exhibited a bacteriostatic effect Escherichia coli bactericidal typhimuriumn, monocytogenes. As result, flowers might be natural agents pharmaceutical field.