Abstract
WHEN I first approached this subject now some eight years ago our knowledge of the lipoid constituents of the Algæ, especially the carotenoid pigments and sterols, was exceedingly meagre. A partial survey of the algal pigments had been made by Kylin1, but in the light of the precise knowledge of the lipochromes of the higher plants the pigments described by him required re-examination, the more so as his method of detection was purely qualitative and it is uncertain whether the carotenoids described represent distinct chemical individuals. As regards the occurrence of sterols among the Algæ no information whatsoever was available. In view of the recognized importance of these lipoids in relation to physiological factors, and bearing in mind the accepted botanical relationship between colour and classification, it seemed of importance to study both classes of compounds in detail.
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References
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HEILBRON, I. SOME ASPECTS OF ALGAL CHEMISTRY*. Nature 149, 398–400 (1942). https://doi.org/10.1038/149398a0
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DOI: https://doi.org/10.1038/149398a0
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