Antibacterial Activities of Methanolic Extracts of Different Seaweeds from Iskenderun Bay, Turkey

Antibacterial activities of the methanolic extracts Stypopodium schimperi (Kützing) Verlaque and Boudouresque, Halopteris filicina (Grateloup) Kützing, Dictyota dichotoma (Hudson) J.V.Lamouroux, Gracilaria bursa-pastoris (S.G.Gmelin) P.C.Silva, Ulva intestinalis Linnaeus species from Iskenderun Bay, Turkey against Escherichia coli, Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Salmonella typhimurium Proteus vulgaris were evaluated by using microdilution method. Results study showed that all had an antimicrobial effect on tested bacteria. A minimum inhibitor concentration bactericidal concentrations ranged >125 to <0.39 mg mL-1. Furthermore, this is first report antibacterial effects S. Boudouresque G. P.C.Silva species. The present findings revealed studied seaweed could act as a natural source bioactive compounds for treatment infectious diseases.