The Effect of Ionizing Radiation on Carbohydrates. The Irradiation of Sucrose and Methyl α-D-Glucopyranoside
The effects of cathode radiation on 50% aqueous solutions and powdered samples of sucrose and methyl alpha -D-glucopyranoside are reported. The extent of hydrolysis of aqueous sucrose (based on the amount of tnvert sugar formed) increased with increasing irradiation dosage and at 104 megareps wag 22.2, 27.0 and 57.8% while being cooled with ethanol-(solid carbon dioxide), ice and water, and ambient air, respectively. Evidence was obtained that about 10% of the sucrose (at all three temperatures) was transformed into nonreducing substances. The product of irradiated 50% aqueous sucrose contained D-glucose and 0-fructose, the latter being identified by paper chromatography and the former by an isolated derivative. Powdered sucrose was irradiated at ambient air and ice-water temperatures. The extent of hydrolysis of powdered sucrose as a function of dosage reached a maximum at an intermediate dose. This effect was more pronounced in the samples cooled with ambtent air. Powdered and 50% aqueous samples of methyl alpha -D-glucopyranoside, irradiated with 104 megareps at ice- water temperature, hydrolyzed to the extent of 3.3 and 8.3%, respectively (based on conversion to D-glucose). Evidence from paper chromatography indicated the formation of substantial amounts of D-glucose. G(invert sugar) values for irradiated sucrose and G(glucose) values for irradiated methyl alpha -D- glucopyranoside were calculated.
- Research Organization:
- Ohio State Univ., Columbus
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-010610
- OSTI ID:
- 4282970
- Journal Information:
- Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 6 Vol. 81; ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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