K V Giri

The action of hydrogen peroxide on amino acids in presence of iron salts and its bearing on photolysis of amino acids

Es wurde der Abbau von Aminosäuren durch Wasserstoffsuperoxyd in Gegenwart von Eisensalzen untersucht. Papierchromatographische Analyse zeigte, dass dabei ausγ-Aminobuttersäureβ-Alanin und Glycin, ausβ-Alanin und Serin Glycin entsteht. Die Bildung vonα-Alanin und Asparaginsäure ausα-Aminobuttersäure und von Asparaginsäure aus Glutaminsäure konnte ebenfalls festgestellt werden. Diese Resultate werden in Zusammenhang gebracht mit dem Mechanismus der Photolyse von Aminosäuren in Gegenwart von TiO2.

A blood anticoagulant factor from the latex ofCarica papaya

SummaryA factor capable of effectively inhibiting the process of coagulation of plasma as well as whole blood has been isolated from the latex ofCarica papaya. Attempts were made at purification of the factor by adsorption and fractional precipitation with organic solvents. A comparatively pure product was obtained by cold acetone fractionation at a final concentration of 42 to 48%. It was found that there was no correlation between the residual proteolytic activity and the anticoagulant property of the factor. Some of the general properties of the anticoagulant factor have also been studied.