Translations:Vitamin B12/75/en: Difference between revisions

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Message definition (Vitamin B12)
===Industrial===
Industrial production of B<sub>12</sub> is achieved through [[Fermentation (biochemistry)|fermentation]] of selected microorganisms. ''[[Streptomyces griseus]]'', a bacterium once thought to be a [[fungus]], was the commercial source of vitamin B<sub>12</sub> for many years. The species ''[[Pseudomonas denitrificans]]'' and ''[[Propionibacterium freudenreichii]]'' subsp. ''shermanii'' are more commonly used today. These are grown under special conditions to enhance yield. [[Rhone-Poulenc]] improved yield via genetic engineering ''P. denitrificans''. ''[[Propionibacterium]]'', the other commonly used bacteria, produce no [[exotoxin]]s or [[endotoxin]]s and are generally recognized as safe (have been granted [[GRAS]] status) by the [[Food and Drug Administration]] of the United States.

Industrial

Industrial production of B12 is achieved through fermentation of selected microorganisms. Streptomyces griseus, a bacterium once thought to be a fungus, was the commercial source of vitamin B12 for many years. The species Pseudomonas denitrificans and Propionibacterium freudenreichii subsp. shermanii are more commonly used today. These are grown under special conditions to enhance yield. Rhone-Poulenc improved yield via genetic engineering P. denitrificans. Propionibacterium, the other commonly used bacteria, produce no exotoxins or endotoxins and are generally recognized as safe (have been granted GRAS status) by the Food and Drug Administration of the United States.

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