초록
<P><B>Abstract</B></P> <P>Hydrolysis enzymes can be produced from <I>Aspergillus niger</I> using solid state fermentation method. This research aimed to understand the fermentation efficiency of <I>A. niger</I> with different variety of the biomass waste substrates, i.e. rice husk, sugarcane bagasse and corn cob, to produce α-amylase and β-glucosidase. The optimum fermentation time for each substrate was 6 days. The highest activity unit for α-amylase and β-glucosidase were 81.86 U/ml and 95.02 U/ml using substrate corn cob respectively. Activity units were 73.94 U/ml and 82.35 U/ml measured for dry α-amylase and dry β-glucosidase respectively. This dried enzyme was stable for hydrolysis process at 30-50 <SUP>°</SUP>C.</P>