Abstract
Tempeh is one of Indonesia’s traditional foods that contain fibrinolytic enzymes. Tempeh bongkrek shows very strong activity among various tempeh. The fibrinolytic enzymes of bongkrek tempeh are obtained by steps of purification i.e, ammonium sulphate precipitation, ion exchange chromatography and gel filtration chromatography. The fibrinolytic enzymes has been successfully purified with a yield of 4.37%, specific activity of 3,361 U / mg and purification fold of 44.02. SDS PAGE analysis showed that the enzyme was purified in to single band with estimated molecular mass of 75.82 kDa. The purified enzyme has optimum pH of 7 and optimum temperature of 50°C and pH stability between pH 4 - 7 with temperature stability from 30°-50°C. The fibrinolytic activity is increased with addition of CaCl2 but inhibited with CuSO4, phenylmethylsulfonyl fluoride (PMSF), sodium dodecyl sulfate (SDS), and ethylenediaminetetraacetic acid (EDTA).
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