The novel heparinase-producing bacterial strain Sphingobacterium sp. was isolated and screened from soil. The optimum medium composition is （g/L）: Soytone 20, NaCl 1, K2HPO4 2.5, MgSO4 0.5, Heparin 2, Sucrose 15, pH 7.5. The optimum temperature for growth and enzyme production was 32℃. When cultured at a rotating shaker at 30℃ for 36 hours, 200r/min, 50mL medium in 500mL flask, the production of heparinase reached 4000U/L.
