[Effect of the composition of the nutrient medium on the synthesis of acid-fast alpha-amylase by different strains of Aspergillus].
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.
D000681:Amylases / Q000096:biosynthesis*; D001230:Aspergillus / Q000201:enzymology*; D001234:Aspergillus niger / Q000201:enzymology; D003470:Culture Media; D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D013045:Species Specificity
D003470:Culture Media; D000681:Amylases
Vliianie sostava pitatel'noĭ sredy na biosintez kislotoustoĭchnivoi Al'fa-amilazy razlichnymi vidami gribov Aspergillus.