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A Contribution to the Chromatology of the Bile

Published online by Cambridge University Press:  15 September 2014

John Berry Haycraft  and
Harold Scofield
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Extract

One of the chief biliary pigments is bilirubin. It has a red-orange colour, and is derived from the decomposition of haemoglobin. It can be oxidised first into a green, then into a blue, then into a red, and finally into a yellow-brown pigment. Between the blue and red a violet substance is produced, but it is uncertain whether or not this is only a mixture of the blue and red pigment. The formation of the green pigment, according to Städeler, is due to oxidation, together with the addition of a molecule of water.

Type
Proceedings 1888-89
Information
Proceedings of the Royal Society of Edinburgh , Volume 16 , 1890 , pp. 188 - 193
Copyright
Copyright © Royal Society of Edinburgh 1889

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References

note* page 188 Gorup-Besanez, Physiol. Chemie, p. 207.

† Jour, of Phys., vol. vi. p. 2.

note * page 190 Cholohæmatin is a pigment which gives absorption bands. It is present and often partially replaces biliverdin, in ox-bile.—MacMunn, loc. cit.