Rosandi, Gita PutriRoza, Rodesia MustikaMartina, Atria2016-05-192016-05-192016-05-19wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/8388Potential actinomycetes in producing antibacterial compound has been widely studied. However, not so many information about antibacterial compound produced by local isolates actinomycetes from Riau despite its high diversity. The aim of this research is to determine potential of actinomycetes from Rimbo Panjang Peat, Kampar, Riau in producing antibacterial compounds against S. aureus. Agar disc method was used to test the antibacterial activity by measuring the inhibition zone. Furthermore, antibacterial compounds produced by isolated filtrate of actinomycetes, following five day fermentation, were tested using paper disc method. The result showed that 13 of 40 isolates which were tested using agar disc method had antibacterial activity against S. aureus with the highest inhibition zone was 18,45 mm (isolates KN 5.4). Meanwhile, only 6 of 13 isolates filtrate which were tested using paper disc method showed antibacterial activity with the highest inhibition zone of 16,16 mm (KN 5.4).enActinomycetesAntibacterialStaphylococcus aureusRiaustudent Paper Post Degree