title: [The effect of acid proteinases on the activity and stability of glucoamylase preparations].
abstract: It was demonstrated that the presence of acid proteinases in the preparation isolated from Aspergillus awamori decreased the activity and stability of glucoamylase. Patterns of changes in the enzymatic activity and stability of glucoamylase at increased temperature and various pH values were studied over a long-term storage. A biospecific sorbent for removal of acid proteinases was synthesized, and glucoamylase preparations free of proteolytic activity were produced.
authors.forename: N M
authors.initials: NM
authors.lastname: Rakhimova
authors.forename: Kh T
authors.initials: KhT
authors.lastname: Khasanov
authors.forename: K D
authors.initials: KD
authors.lastname: Davranov
mesh_terms: D000042:Absorption; D016282:Aspartic Acid Endopeptidases / Q000737:chemistry / Q000494:pharmacology*; D001230:Aspergillus / Q000201:enzymology*; D004795:Enzyme Stability / Q000187:drug effects; D005087:Glucan 1,4-alpha-Glucosidase / Q000737:chemistry / Q000187:drug effects* / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D013696:Temperature
chemical_list: D005087:Glucan 1,4-alpha-Glucosidase; D016282:Aspartic Acid Endopeptidases; C026442:Aspergillus acid proteinase