FIELD: biotechnology. SUBSTANCE: method involves culturing consortium of fungus strain Aspergillus niger and yeast strain Candida lipolytica on nutrient medium containing sugar and mineral nutrients under conditions of aeration and shaking. Yeast were sown at fungus concentration 5-10 g/l, residual sugar 10-40% of the parent noninverted sugar; then biocatalyst is added - methylphenylsulfonylacetic acid N-tris-(hydroxyethyl)-ammonium salt at concentration 10-5-10-7 g/l. Yeast sowing concentration is 10-80% of the fungus concentration. EFFECT: improved method of biosynthesis. 2 tbl
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Authors
Dates
1997-12-10—Published
1995-06-23—Filed