Which of the following is NOT used for producing vitamins industrially?
Which of the following is NOT used for producing vitamins industrially?
Select an option to attempt
Correct Answer: Option C
Explanation
Industrial vitamin microbial producers: Vitamin B2 (Riboflavin): Ashbya gossypii (Eremothecium ashbyi) — natural overproducer; also engineered Bacillus subtilis. Vitamin B12 (Cobalamin): Propionibacterium freudenreichii and Pseudomonas denitrificans. Various vitamins/amino acids: Corynebacterium glutamicum — primarily used for glutamate and lysine, but also some B vitamins. Pseudomonas aeruginosa is an OPPORTUNISTIC HUMAN PATHOGEN (causes nosocomial pneumonia, wounds, UTI in immunocompromised patients). It is NOT used in industrial fermentation for food/pharmaceutical-grade vitamin production due to its pathogenicity and ability to produce virulence factors. Its use would violate regulatory safety standards (GRAS status required for food-grade organisms).