| 摘要 |
A Corynebacterium diphtheriae culture medium for the production of diphtheria toxin and methods for producing the toxin are provided. The medium is substantiallty free of animal-derived products and comprises water, a carbohydrate source, a nitrogen source and a number of free amino acids in an initial concentration wherein the initial concentration of each free amino acid is not limiting for the production of the toxin.
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