| 摘要 |
The invention provides a process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these, by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, wherein the nucleotide sequence(s) in the microorganisms which code(s) for the poxB gene is (are) attenuated, in particular eliminated. |
