| Vitamin B12
Vitamin B12 in the Body
Vitamin B12 Crystals
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Vitamin B12The term vitamin B12 refers to a group of molecules called cobalamins which all contain cobalt. These include:
Fig.1 The Chemical Structure of Vitamin B12
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3D Structure of Vitamin B12
Principal Sources in FoodThe main dietary sources of vitamin B12 are animal products for example:
Vitamin B12 in the BodyLike the other members of the B-complex, vitamin B12 is involved in the cellular metabolism of carbohydrate, protein and fat and in the production of:
StabilityVitamin B12 is stable to heat but is sensitive to light, oxygen, acid and alkali.
SynthesisThe industrial production of vitamin B12 involves bacterial fermentation.