| 摘要 |
The present invention is directed to a process for the preparation of a fermentation broth. This fermentation broth contains - at least one lactic acid bacterium, abbreviated with LAB, that produces folate, - at least one propionic acid bacterium, abbreviated with PAB, that produces vitamin B12, - free folate and folate present in intracellular form in said lactic acid bacterium, - vitamin B12 present in intracellular form in said propionic acid bacterium, - propionate, and - acetate. |
