Karrer's early research concerned complex metal compounds but his most important work has concerned plant pigments, particularly the yellow carotenoids.
He elucidated their chemical structure and showed that some of these substances are transformed in the body into vitamin A.
His work led to the establishment of the correct constitutional formula for beta-carotene, the chief precursor of vitamin A;
The first time that the structure of a vitamin or provitamin had been established.
CARROTS = NOBEL PRIZE IN CHEMISTRY, 1937
VITAMIN A
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Functions Of Vitamin A
Theory To Practice
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Snapshot
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