Radioprotective thermally generated free-radical dextrins

Tomasik, Piotr; Michalski, Oskar; Bidzińska, Ewa; Cebulska-Wasilewska, Antonina; Dyrek, K.; Fiedorowicz, Maciej; Olko, P.

doi:10.1007/s11434-007-0528-y

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…Comparison of these results with the results of the previously reported [5] X-ray irradiation reveals that the X-ray radiation provided more distinct structural changes than did the γ-radiation of comparable dose. That effect resulted from a higher number of quanta put on pyrodextrins when the X-ray radiation was applied.…”

Section: Figure 10supporting

confidence: 67%

Radioprotectors from pyrodextrins

et al. 2010

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Cornstarch heated in the range of 230-280°C depolymerized into pyrodextrins characterized by two-component EPR signals of relatively stable free radicals. These thermally generated radicals could serve as efficient scavengers for free radicals generated from pyrodextrins with the 200 Gy dose of γ-radiation. The most efficient traps/scavengers were produced from cornstarch at 250-280°C. IR data indicated incorporation of the OH groups to the pyrodextrins. These groups most probably originated from the OH· radicals formed by the radiolysis of water. EPR spectra provided evidence for trapping free radicals generated by γ-irradiation and for their subsequent annihilation on contact with pyrodextrins. Water affected radical processes occurring in pyrodextrins caused by γ-irradiation.

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Section: Figure 10supporting

confidence: 67%