Antibacterial Activity of Two Brown Algae (Cystoseira compressa and Padina pavonica) Against Methicillin-Resistant Staphylococcus aureus
Gorkem Dulger *
Department of Medical Biology, Faculty of Medicine, Duzce University, 81620 Konuralp/Duzce, Turkey
Basaran Dulger
Department of Biology, Faculty of Science and Arts, Duzce University, 81620 Konuralp/Duzce, Turkey
*Author to whom correspondence should be addressed.
Abstract
Aqueous and ethanolic extracts obtained from two brown algae (Cystoseira compressa (Esper) Gerloff et. Nizamuddin) and Padina pavonica (Linnaeus) Thivy) have been investigated for their ability to inhibit 35 hospital isolates of methicillin-resistant Staphylococcus aureus (MRSA). Both aqueous and ethanolic extracts of the plant were effective on MRSA. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of the ethanolic extract with the greatest antibacterial activity were those of Cystoseira compressa MIC 3.2-6.3mg/mL and MBC 6.3-25mg/mL, respectively
Keywords: Antibacterial activity, methicillin-resistant Staphylococcus aureus, brown algae