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Food Biotechnology

Vitamin B12...

Question

Vitamin $B_{12}$ is produced directly during the course of fermentation by?

A

Ashbya gossypii

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B

Rhizopus stolonifer

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C

Saccharomyces cerevisiae

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D

Propionic bacteria

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Solution

The correct option is D Propionic bacteria
Vitamin B12 is water soluble vitamin commonly known as cobalamin. In the human body, it is metabolized in the liver and excreted via the kidney. In industrial production of vitamin B12, the most favorable bacterial strain is Propionibacterium freudenreichii.

So, the correct answer is 'Propionic bacteria'.

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