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[Protease and alpha-amylase synthesis by washed cells of Aspergillus oryzae 251-90].

Regularities of protease and alpha-amylase production by washed cells of Aspergillus oryzae 251-90 were being studied. The results obtained enabled us to assume a constitutive character of the both enzymes synthesis by the given producer. Sources of carbon, nitrogen and sulphur take part in regulation of the protease production, whereas in the case of the alpha-amylase synthesis only carbon sources that are important. Elimination of phosphorus from the medium affects the synthesis of both enzymes. Celatin stimulates the production of the two enzymes, being a supplier of amino acids.