%0 Journal Article
%T Radioprotectors from pyrodextrins
%A Oskar Michalski
%A Ewa Bidzi¨½ska
%A Micha  Borowski
%A Krystyna Dyrek
%A Pawe  Olko
%A Liliana Stolarczyk
%A Jan Swako¨½
%A Piotr Tomasik
%A El bieta Wenda
%J Chinese Science Bulletin
%@ 1861-9541
%D 2010
%I 
%R 10.1007/s11434-010-3223-3
%X Cornstarch heated in the range of 230¨C280¡ãC 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 ¦Ã-radiation. The most efficient traps/scavengers were produced from cornstarch at 250¨C280¡ãC. 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 ¦Ã-irradiation and for their subsequent annihilation on contact with pyrodextrins. Water affected radical processes occurring in pyrodextrins caused by ¦Ã-irradiation.
%K cornstarch pyrodextrins
%K depolymerization
%K free radicals
%K ¦Ã-radiation
%U http://link.springer.com/article/10.1007/s11434-010-3223-3