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The forms of vitamin B12 in foods

Published online by Cambridge University Press:  09 March 2007

J. Farquharson  and
J. F. Adams
J. Farquharson
Affiliation:
Southern General Hospital, Glasgow G51 4TF, Scotland
J. F. Adams
Affiliation:
Southern General Hospital, Glasgow G51 4TF, Scotland
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Abstract

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1. The forms of vitamin B12 were determined in foods, most of which had been prepared for consumption.

2. Five forms were detected: adenosylcobalamin, hydroxocobalamin, methylcobalamin, cyanocobalamin and sulphitocobalamin. Adenosylcobalamin and hydroxocobalamin were the predominant forms.

3. The intestinal absorption of [57Co] sulphitocobalamin was estimated and found to be lower than that of [58Co]cyanocobalamin.

Type
Papers of direct relevance to Clinical and Human Nutrition
Information
British Journal of Nutrition , Volume 36 , Issue 1 , July 1976 , pp. 127 - 136
Copyright
Copyright © The Nutrition Society 1976

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