Translations:Cyanocobalamin/20/en: Difference between revisions

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Message definition (Cyanocobalamin)
==Production==
Cyanocobalamin is commercially prepared by [[bacterial fermentation]]. Fermentation by a variety of [[microorganism]]s yields a mixture of [[methylcobalamin]], [[hydroxocobalamin]] and [[adenosylcobalamin]]. These compounds are converted to cyanocobalamin by addition of [[potassium cyanide]] in the presence of [[sodium nitrite]] and heat. Since multiple species of ''[[Propionibacterium]]'' produce no [[exotoxin]]s or [[endotoxin]]s and have been granted [[GRAS]] status (generally regarded as safe) by the [[United States Food and Drug Administration]], they are the preferred bacterial fermentation organisms for vitamin {{chem|B|12}} production.

Production

Cyanocobalamin is commercially prepared by bacterial fermentation. Fermentation by a variety of microorganisms yields a mixture of methylcobalamin, hydroxocobalamin and adenosylcobalamin. These compounds are converted to cyanocobalamin by addition of potassium cyanide in the presence of sodium nitrite and heat. Since multiple species of Propionibacterium produce no exotoxins or endotoxins and have been granted GRAS status (generally regarded as safe) by the United States Food and Drug Administration, they are the preferred bacterial fermentation organisms for vitamin B
12 production.

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