Uji Aktivitas Antibakteri Dari Streptomyces Sp. Isolat Tanah Lumpur Lapindo Sidoarjo Terhadap Salmonella Enteritidis

Antibacterial activity test of Streptomyces sp. isolated from lapindo sidoarjo mud againts Salmonella enteritidis. This research has done in vitro using diffusion modifications agar plates method to know antibiotic production of Streptomyces sp. against Salmonella enteritidis by the formation of diameter inhibition zone around the colonies of Streptomyces sp. The activity test has done by sticking a printout of agar plates inoculated by Streptomyces sp. on the media that has been inoculated by Salmonella enteritidis, then incubated at 37oC for 24 hours. Positive result indicated by clear zone produced by Streptomyces sp. around Salmonella enteritidis colonies on the petri dish. It means that the isolates of Streptomyces sp. can produce antibiotic to inhibit the growth of Salmonella enteritidis. Result showed that Streptomyces sp. isolated from lapindo sidoarjo mud is potential in producing antibiotic because it showed a result inhibiting the grown of Salmonella enteritidis that marked with no growth of Salmonella enteritidis on petri dish