Modern Pigments

Fossil pigments

Johan Lindgren introduces fossil pigments.

Origin of Bile Pigments

S. H. ROBINSON (Boston) described a new experimental technique for studying the early labelled component of bilirubin in the ligated bile duct of the Gunn rat. Using 14C bilirubin he measured the total miscible bilirubin pool. In addition, the rate of bile pigment formation following the administration of 2-14C glycine was estimated. This allowed precise assessment of bilirubin and haem product...

The Carotenoid Pigments

Abstracts Abnormal Blood Pigments

ABNORMAL BLOOD PIGMENTS CLEMENT A. FINCH, M.D. , AND JOSEPH F. ROSS, M.D. THE BLOOD PIGMENTS; THE PROPERTIES AND QUANTITATIVE DETERMINATION WITH SPECIAL REFERENCE TO THE SPECTROPHOTOMETRIC METHODS. H. 0. Michel andJ. S. Harris. J. Lab. & Clin. Med., a;.445-463, 1940. The authors present an orientational discussion of the nature and chemical properties of the various blood pigments derived from ...

Photosynthetic Pigments in Diatoms

Photosynthetic pigments are bioactive compounds of great importance for the food, cosmetic, and pharmaceutical industries. They are not only responsible for capturing solar energy to carry out photosynthesis, but also play a role in photoprotective processes and display antioxidant activity, all of which contribute to effective biomass and oxygen production. Diatoms are organisms of a distinct ...