FIELD: biotechnology.
SUBSTANCE: protein-free medium for cultivation of CHO cells is described. The medium does not contain oligopeptides, contains amino acids, vitamins, organic and inorganic salts and sources of carbohydrates and is supplemented with at least 2 mg/l of 2HCl putrescine.
EFFECT: inventions promote the growth of cells, their specific productivity and density of the cells.
5 cl, 7 dwg, 11 ex
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