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Microbes in Human Welfare
Vitamins and Single Cell Protein
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Concepts tested
- Sources of vitamin B12
All Questions
2004 AIPMT 1 question
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The richest sources of vitamin $B_{12}$ are :-Vitamin $B_{12}$ (cyanocobalamin, a cobalt-containing vitamin) is made only by microorganisms. Animals get it from food and store it mainly in the liver.
Liver (e.g. goat's liver) is the richest animal source of vitamin $B_{12}$.
Spirulina, a cyanobacterium used as single cell protein, is also rich in protein, minerals and vitamins including $B_{12}$ (in the form of related cobalamin compounds).
Plant foods such as chocolate, green gram, rice and carrot contain little or no vitamin $B_{12}$; egg and chicken contain only moderate amounts.
Its deficiency causes pernicious anaemia.
So the richest sources are goat's liver and Spirulina.