Three isolates of LBKURCC37, LBKURCC38, and LBKURCC39, were fungi isolated and purified from peat soils originating from secondary forests in the Makmur Area of the Giam Siak Kecil Bukit Batu Nature Reserve (CAGSKBB), Riau. Soil samples are taken from the CAGSKBB core area. The results of previous studies found that LBKURCC39 produced chitinase in the highest amount above the chitinase activity…