Abstract
ALTHOUGH Moore1 had demonstrated that β-carotene was transformed into vitamin A in the animal body, the actual process of this transformation has not as yet been fully understood. There are two views: one postulating oxidation of β-carotene at the central double bond, with the formation of, at first, two molecules of retinene2,3 (vitamin A aldehyde), which are immediately reduced to give two molecules of vitamin A alcohol; the other claiming that if an excentric bond be attacked it would give only one molecule of vitamin A, resulting from the further degradation of the larger fragment. Moore4 has given an outline of the evidence for and against these views.
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BARUA, R., BARUA, A. Oxidation of βCarotene : Formation of Vitamin A Acid. Nature 197, 594 (1963). https://doi.org/10.1038/197594a0
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DOI: https://doi.org/10.1038/197594a0
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