Abstract
SOME specimens of the heart urchin, Echinocardium cordatum, which were kindly sent to us by Mr. J. R. Bruce (Marine Biological Station, Port Erin, Isle of Man), have been examined for carotenoids by the methods usually employed in this laboratory1,2. The gonads, which are almost colourless, yielded surprisingly large amounts of a carotenoid mixture which was resolved into three components: β-carotene, echinenone and lutein. β-Carotene and echinenone were the major components, lutein occurring only in traces. In the perivisceral fluid, on the other hand, echinenone and lutein occur in approximately equal amounts, while β-carotene is completely absent.
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GOODWIN, T., SRISUKH, S. Carotenoids in the Heart Urchin, Echinocardium cordatum. Nature 167, 358–359 (1951). https://doi.org/10.1038/167358b0
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DOI: https://doi.org/10.1038/167358b0
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