Letter | Published:

Absorption Spectrum of the Unsaponifiable Matter from Wheat-Germ Oil

Nature volume 131, page 618 (29 April 1933) | Download Citation



In a recent letter to NATURE, Bowden and Moore1 record data on the absorption spectrum of the vitamin E fraction of wheat-germ oil. So early as 1928, wheat-germ oil and extracts were studied here. The oil showed a maximum at 272 mμ (E 1per cent1 cm 1.9) and the unsaponifiable matter (kindly supplied by Prof. J. C. Drummond) gave evidence of maxima at 280 mμ and 256 mμ, together with weak selective absorption in the visible. On recrystallising, a white solid showing the ergosterol bands and very distinct maxima at 242 mμ, and 253 mμ. was obtained, whilst the more soluble coloured fraction still showed marked inflexions near 280 mμ and 256 mμ

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  1. 1.

    NATURE, 131, 512, April 8, 1933.

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  1. Chemistry Dept., University of Liverpool. April 8.

    • R. A. MORTON
    •  & J. R. EDISBURY


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