1.
Mikrobiologiia
; 50(5): 807-12, 1981.
Article
in Russian
| MEDLINE
| ID: mdl-6172702
Subject(s)
Amylases/biosynthesis , Aspergillus/enzymology , Glucan 1,4-alpha-Glucosidase/biosynthesis , Glucosidases/biosynthesis , Selection, Genetic , alpha-Amylases/biosynthesis , Aspergillus/drug effects , Aspergillus/radiation effects , Drug Stability , Enzyme Induction , Mutagens/pharmacology , Mutation , Ultraviolet Rays
2.
Prikl Biokhim Mikrobiol
; 11(4): 515-8, 1975.
Article
in Russian
| MEDLINE
| ID: mdl-1736
ABSTRACT
The capacity of 86 strains of the Aspergillus fungus to synthesize acid stable alpha-amylase was examined. The strains of Asp. niger showing a high capacity of synthesizing the enzyme were isolated. Repeated cultivation of the selected cultures on the Minoda agar medium led to a 200% increase in the enzyme activity in the submerged culture. Addition of sodium nitrate to the Minoda medium during submerged cultivation allowed a 3-fold increase of the synthesis of acid stable alpha-amylase.