Radical Scavenging Activity and Antibacterial Effect of Three Cyclamen L. Tuber Extracts on Some Fish Pathogens

Abstract

Cyclamen L. is a member of Primulaceae family, a geophyte, which havebeen utilized for their biological activities in folk medicine. The aim of this study isto investigate the antibacterial activity of three Cyclamen species on some fishpathogens as well as their radical scavenging activity potentials. C. cilicium Boiss. &Heldr., C. pseudibericum Hildebr. and C. hederifolium Aiton were collected fromdifferent regions in Turkey. Cyclamen tubers were extracted in ethanol and thenDPPH, ABTS and NO methods were utilized for the assurance of radical scavengingactivities of the extracts. Antibacterial activity of the extracts were determined invitro against five bacterial fish pathogens, namely, Vagococcus salmoninarum,Staphylococcus epidermidis, Lactococcus garvieae, Vibrio anguillarum and Yersiniaruckeri. All the tested tuber extracts exhibited moderate antibacterial activityagainst four bacteria and the radical scavenging activity in the order of potency: C.cilicium>C. pseudibericum>C. hederifolium. In conclusion, this study showed thatthe Cyclamen species have moderate antibacterial activity against fish pathogenicbacteria except V. anguillarum.