Production of Vitamin B12 during Fermentation
Production of Vitamin B12 during fermentation can be seen in certain microorganisms. Among them are:

Ashbya gossypii
- Ashbya gossypii is a filamentous fungus known for its ability to produce Vitamin B12 during fermentation.
- This organism has been studied for its potential in industrial applications for Vitamin B12 production.

Rhizopus stolonifer
- Rhizopus stolonifer, a common bread mold, is another organism capable of synthesizing Vitamin B12 during fermentation.
- Researchers have explored the use of this mold in biotechnological processes for Vitamin B12 production.

Saccharomyces cerevisiae
- Saccharomyces cerevisiae, a type of yeast, has also been found to produce Vitamin B12 during fermentation.
- This yeast is widely used in the food and beverage industry, making it a promising candidate for Vitamin B12 production.

Propionibacteria
- Certain species of propionibacteria have been identified as Vitamin B12 producers during fermentation.
- These bacteria are commonly used in the production of Swiss cheese and are being studied for their potential in Vitamin B12 production.
In conclusion, Vitamin B12 can be produced directly during fermentation by various microorganisms, including Ashbya gossypii, Rhizopus stolonifer, Saccharomyces cerevisiae, and propionibacteria. Further research and optimization of fermentation processes involving these organisms could lead to increased Vitamin B12 production for various industrial applications.

Propionibacteria