FIELD: medicine.
SUBSTANCE: method of obtaining L-threonine includes cultivation of microorganism belonging to genus Escherichia, which is able to produce L-threonine, in fermenting medium, containing source of carbon, source of nitrogen and source of sulphur and isolation of L-threonine from medium, sulphur concentration in medium being regulated in such way that its concentration constitutes 0.35 g/l or lower.
EFFECT: invention allows to obtain L-threonine with high degree of efficiency.
20 cl, 1 dwg, 2 tbl, 2 ex
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