Penicillium sp. LBKURCC34 is one of fungus that was isolated in peat soil of primary forest Cagar Biosfer Giam Siak Kecil Bukit Batu (GKSBB) Riau Province and has been collected by Biochemistry Laboratory, Riau University. This fungus is a potential source for the discovery of metabolic secondary compound with antimicrobial activity. This study was done to produc secondary metabollites of Penic…