CONVERSION OF C14-PALMITIC ACID TO GLUCOSE

Conversion of glucose-1-C14 to pectin in the boysenberry.

Many authorities believe that pectins play a dominant r&e in the changes in texture of fruits during the ripening process, although the origin and fate of pectic substances in plant tissues are unknown ((1) p. 273). There is no evidence that in nature pectic substances are formed directly from galactose or galactan ((1) p. 277). To obtain some insight into the mechanism of pectin formation, glu...

The conversion of glucose-6-C14 to ascorbic acid by the albino rat.

The conversion of glucose-l-Cl4 to ascorbic acid-6-Cl4 and uniformly labeled glucose-Cl4 to uniformly labeled ascorbic acid-Cl4 in the Chloretonestimulated albino rat has been demonstrated (1, 2). To provide further evidence for a direct conversion of glucose to ascorbic acid and to eliminate pathways similar to that suggested by Bidder (3) for glucuronic acid formation, glucose-6-Cl4 has been ...

The conversion of C14-labeled glucose cycloacetoacetate to L-ascorbic acid in germinating Phaseolus radiatus.

The investigations by Xath, Chitale, and Belavady (1) showed that when n-glucose1 and an equimolar amount of sodium acetoacetate is fed to germinating mung beans or injected into rats (a), the production of n-ascorbic acid is greater than with glucose alone. It was further observed (2) that a condensation product of glucose and acetoacetate (glucose cycloacetoacetate ethyl ester) can be easily ...

Conversion of DL-lactate-2-C14 or -3-C14 or pyruvate-2-C14 to blood glucose in humans: effects of diabetes, insulin, tolbutamide, and glucose load.

On the conversion of palmitic acid labeled with radioactive carbon to glucose by the alloxan-diabetic rat.

stomach tube to alloxan-diabetic rats and the urine of these animals collected for the next 24 hours. The rats had access to food. The urinary glucose was isolated as the osazone, which was then converted to the osotriazole derivative. The results obtained with four rats are recorded in the table. The purity of the osazones and osotriazoles was established by the determination of nitrogen cont....