The study of antimicrobial activity of stonecrop extracts (Sedum maximum (L.) Hoffm., S. telephium L.)

The purpose of the work is to investigate the antimicrobial activity of aqueous alcoholic extract of large stonecrop and purple stonecrop. Material and Methods. The effects of large stonecrop (Sedum maximum (L.) Hoffm.) and purple stonecrop (S. telepium L.) on aqueous solution of alcoholic extracts on Staphylococcus aureus АТС С 209R, Pseu-domonas aeruginosa ATCC 27835, Escherichia coli ATCC 25922 have been studied by the method of double serial dilution followed by seeding on solid culture media. As a result of the work the minimum inhibitory concentrations for all extracts to all the studied cultures have been found. Stonecrop extracts have bactericidal action. Conclusion. Antimicrobial activity has been determined for the extracts of both species for all researched samples of microbial strains.