Gamma-radiolysis of D-glucose in aerated, aqueous solution.
Gamma-Radiolysis of D-glucose in aerated, aqueous solution gives mainly D-glucono-1,5-lactone, D-arabino-hexosulose, and D-ribo-hexos-3-ulose, together with D-xylo-hexos-4-ulose, D-xylo-hexos-5-ulose, and other pentose, tetrose, and triose derivatives as minor products, which were estimated by mass spectrometry of their alditol-d acetates. These hexose derivatives appear to be produced by the decomposition of D-glucose peroxy-radicals which are formed by the reaction of the primary radicals of D-glucose with oxygen. Bond scission of the peroxy-radicals yields triose, tetrose, and pentose. A radiolysis mechanism for the degradation of D-glucose in aerated, aqueous solution is proposed, based on the reaction of several kinds of D-glucose radical with oxygen.
D002849:Chromatography, Gas; D005720:Gamma Rays; D005947:Glucose / Q000528:radiation effects*; D006601:Hexoses; D007783:Lactones; D013058:Mass Spectrometry; D008968:Molecular Conformation; D010100:Oxygen; D010429:Pentoses; D011827:Radiation; D014306:Trioses
D006601:Hexoses; D007783:Lactones; D010429:Pentoses; D014306:Trioses; D005947:Glucose; D010100:Oxygen