FAT-SOLUBLE VITAMINE. I

The Effects of Heat and Aeration upon the Fat-soluble Vitamine.

A KNOWLEDGE of the conditions which affect the stability of vitamines is not only of immediate practical importance in connexion with the commercial and domestic treatment of foods, but is, clearly, not without value in setting certain limitations to hypotheses which may be framed as to the nature of these substances, and also in giving guidance when attempts are made to isolate them. There is ...

A Note on the Differentiation of the Yellow Plant Pigments from the Fat-Soluble Vitamine.

THE identification of the yellow plant pigments-carotene and xanthophyllwith certain lipochromes of the animal body has been established by Palmer and his co-workers and has formed the substance of an interesting series of investigations. Palmer and Eckles [1914, 1] first identified the yellow colouring matter of cow's milk with carotene accompanied by insignificant traces of xanthophyll. They ...

Vitamine K

L’actualit e de Marc Guillaumont sur la vitamine K publi ee en 2000 dans ce journal etaitparticuli erement informative, pr ecise et concise (Guillaumont, 2000). A ce jour, elle est toujours d’actualit e, et les donn ees structurelles et m etaboliques de cet article ne seront donc pas reprises dans cette revue dont l’objectif sera de r esumer les nouvelles connaissances dans le domaine depuis ce...

Fat-soluble vitamins.

Serotonin Receptors. I. Extraction and Assay of a Substance Which Renders Serotonin Fat-soluble.

7Recent work by H. A. Harbury and K. A. Foley (these PROCEEDINGS, 44, 662-665, 1958) shows that caffeine behaves similarly to tryptophan in giving up an electron when complexing with riboflavin. This gives good evidence of the electron-donor properties of this purine. ' R. S. Mulliken, J. Am. Chem. Soc., 72, 600-608, 1950; 811-820, 1952; J. Phys. Chem. 56, 801-822, 1952; Rec. Trav. C/rim., 75, ...