Chibnall and Channon, investigating the cytoplasma of cabbage and spinach leaves (I), isolated a mixture of substances which resembled monophosphatides in their structure and composition, but mere virtually free of nitrogenous bases. The main constituents were identified as the calcium, magnesium, and potassium salts of phosphoric acid esters of diglycerides. These compounds, constituting a new...

Chibnall and Channon, investigating the cytoplasma of cabbage and spinach leaves (I), isolated a mixture of substances which resembled monophosphatides in their structure and composition, but mere virtually free of nitrogenous bases. The main constituents were identified as the calcium, magnesium, and potassium salts of phosphoric acid esters of diglycerides. These compounds, constituting a new...

Chibnall and Channon, investigating the cytoplasma of cabbage and spinach leaves (I), isolated a mixture of substances which resembled monophosphatides in their structure and composition, but mere virtually free of nitrogenous bases. The main constituents were identified as the calcium, magnesium, and potassium salts of phosphoric acid esters of diglycerides. These compounds, constituting a new...

In the preceding paper (1) the synthesis of 0-(distearoyl L-ac-glycerylphosphoryl) L-serine (I) and its use in the elucidation of the structure and configuration of ox brain phosphatidyl serine have been reported. While trying to establish the identity of the reduction product of the natural phosphatidyl serine and synthetic n-a-(distearoyl)phosphatidyl L-serine by comparing their specific rota...

The literature presents much evidence bearing on the fact that glycerol can play r8les of importance in living processes, not only in the combined state in such physiologically important molecules structurally related to glycerol as glycerides, lecithins, cephalins, phosphatidic acids, ethers, and plasmalogens, but also in the uncombined state as free glycerol. Glycerol itself has been identifi...

S U M M A R Y The radioactivities of the glycerol and fatty acid moieties of plasma, liver, and adipose tissue lipids were determined a t intervals after the ingestion of glyceroland palmitic acid-labeled tripalmitin by rats. The changes in the levels of activities of the glycerol and fatty acids, and in the ratios of those activities, demonstrated the following: Only about half of the glycerol...

It is generally assumed that phospholipides are hydrolyzed in the gastrointestinal tract and absorbed in the form of their constituent parts. Indeed, enzymes capable of splitting phospholipides have been found in many tissues, including intestinal mucosa, pancreas, and pancreatic juice. The earlier findings have been reviewed by Belfanti, Contardi, and Ercoli (2), and additional evidence on thi...