This article was originally published with the title “Aldehyde in the Distillation of Sugar” in Scientific American Magazine Vol. 9 No. 26 (March 1854), p. 202 doi:10.1038 ...

Figure 1. Glucose interconverts at lightning speed. The open form contains an aldehyde (left, red asterisk) and an alcohol group (left, blue asterisk), which react reversibly with each other, while ...

Figure 1 Example of a cyclisation reaction with D-glucose. When an aldose cyclizes, the hydroxyl group on C5 undergoes an intramolecular reaction with the C1 carbonyl group of the aldehyde.

Neither glucose-1-phosphate, fructose-1-phosphate, fructose-6-phosphate, nor fructose-1,6-diphosphate formed a reaction product with hemoglobin. G6P behaves as an affinity label with the phosphate ...

Aliphatic aldehydes and reducing sugars will form a yellow-to-red precipitate with Benedict's reagent, causing the blue solution to appear green-to-red. This reaction can be used as a test for such ...