Investigation of Antimicrobial and Enzyme Production Capacities of Actinobacteria Isolated from Y？ld？z Lake Sediment

In this study, actinobacteria was isolated from Y？ld？z Lake (Gümü？hane) sediment and the isolates were examined for antimicrobial activity and enzyme production capacities (amylase, lipase, protease, pectinase, cellulase). Screening was carried out on petri dishes containing suitable media. SCA medium was used for isolation and nistatin and nalidixic acid were added. For the detection of antimicrobial activity cross-streak method and C. tropicalis, C. albicans, E. coli, P. aeruginosa, MRSA, E. faecium, E. fecalis standard strains were used. As a result, 55% of the isolates showed antimicrobial activity agains to at least one test microorganism while 66.6% were able to produce at least one enzyme. However, 22.2% of the isolates were not capable of producing either antimicrobial activity or enzyme. This study was the first study on isolation of actinobacteria from Y？ld？z Lake and the biological activity of isolates. As a results, it is expected that the actinobacteria obtained from this sediment may be the source for industrial and pharmacological studies, but further studies are needed for the isolation and characterization of the active compounds