für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Recent work (1) on the blood precursors of milk fat, by attaching special significance to the triglycerides of blood in the formation of milk, has illustrated forcefully the need of a more direct method for the quantitative evaluation of neutral fat in blood. Until Kelsey (2) reported the use of lipases, the isolation of the glyceride fatty acids had not been accomplished because of the homolog...

The behavior of hydroxypyruvic acid, CHzOH. CO. COOH, and some of its transformation products toward periodic acid, treated in detail in the preceding paper (I), suggested an orienting study of the action of this oxidant on glyoxylic acid, CHO. COOH, and other a-keto acids or on compounds giving rise to such keto acids, following oxidation by periodate. While cr-glycols, a-ketols, a-diketones, ...

Foetal human lung fibroblasts, grown in monolayer, were allowed to incorporate 35SO42for various periods of time. 35S-labelled macromolecular anionic products were isolated from the medium, a trypsin digest of the cells in monolayer and the cell residue. The various radioactive polysaccharides were identified as heparan sulphate and a galactosaminoglycan population (chondroitin sulphate and der...