[Alpha-galactosidase producers among yeast cultures].

The capacity for biosynthesis of alpha-galactosidase was examined in 89 yeast cultures belonging to 21 genera during submerged cultivation on a medium containing dry whey. This capacity was found only in one genus, namely Schwanniomyces. Optimal cultivation conditions were selected for the strain Schw. alluvius 1167 that showed the highest alpha-galactosidase activity. As a result, activity of alpha-galactosidase was increased 4.8 times as compared with the initial level.