Alpha amylase production by aspergillus oryzae using solid state fermentation

الملخص EN

A fungal strain of Aspergillus oryzae was used for the production of alpha amylase by solid state fermentation from agro-industrial waste.

Enzyme production was growth associated and maximum activity (8.23 U / ml) were obtained after 120h when incubated at 30°C on wheat bran with initial moisture content 60 % ; initial medium pH = 5 .

Enzyme activity increased when the solid medium was supplemented with additional nitrogen source (sodium Nitrate).