Determination of Antibacterial Activities of Stinging Nettle (Urtica dioica) Ethanol Extract at Different Bacterial Concentrations

The study evaluated the antibacterial effect of stinging nettle extract by liquid microdilution method to obtain quantitative results. Unlike other studies in literature, MIC and MBC values showing bacteriostatic bactericidal effects were investigated for four different bacterial concentrations. Six pathogen strains studied, including Staphylococcus aureus ATCC 29213, Enterococcus faecalis 29212, Streptococcus pneumoniae 45615, Klebsiella 70063, Escherichia coli 25922, Pseudomonas aeruginosa 27853 levels antimicrobial determined. While does not affect 70063 strain at any level, 1.5x105 1.5x104 found concentrations, no was observed level. concentrations 29213 except 1.5x107 concentration, remaining standard had all 45615 most effective with extract's lowest values. This showed that (Urtica dioica) would contribute research results scientific literature on its effect.