Vitamin `B_(12)` is produced directly during the course of fementation by

Options

A. Ashbya gossypii
B. Rhizopus stolonifer
C. Saccharomyces cerevisiae
D. Propionibacteria

Answer

D

Explanation

The first commercial fermentation production of the vitamin `B_(12)` was by-products of fermentation for streptomycin and acetone-butanol fermentation. This vitamin is being produced by propionic bacteriophage propionibacteria.