SUMMARY Penicillium sp. LBKURCC34 and LBKURCC38 are fungi isolated from peat soil of the primary forest of the Giam Siak Kecil Bukit Batu Biosphere Reserve (GSKBB) of Riau Province. These fungi are known to have the potential to produce secondary metabolites that have antimicrobial and antioxidant activity. To know their pontency this research was conducted to produce secondary metabolites usi…