<abstract xmlns="http://www.w3.org/1999/xhtml"> The stable and complex EPR signals produced by the action of ionizing radiation on crystalline L-sorbose (C6H12O6) separated from rowan berries (Sorbus aucuparia) were studied. Isothermal heating of the samples at the temperature close to the melting point of L-sorbose (140°C) results in the modification and simplification of the EPR signal involved. In the EPR signal of heated L-sorbose, the isotropic quartet was distinguished. In the differential spectrum obtained by subtraction of normalized spectra of unheated and heated L-sorbose, the isotropic doublet was identified in addition. The DFT fitting offers the probable assignment of the EPR signals to specific radical structures.</abstract>

The stable and complex EPR signals produced by the action of ionizing radiation on crystalline L-sorbose (C6H12O6) separated from rowan berries (Sorbus aucuparia) were studied. Isothermal heating of the samples at the temperature close to the melting point of L-sorbose (140°C) results in the modification and simplification of the EPR signal involved. In the EPR signal of heated L-sorbose, the isotropic quartet was distinguished. In the differential spectrum obtained by subtraction of normalized spectra of unheated and heated L-sorbose, the isotropic doublet was identified in addition. The DFT fitting offers the probable assignment of the EPR signals to specific radical structures.

Study on radiation-induced radicals giving rise to stable EPR signal suitable for the detection of irradiation in L-sorbose-containing fruits

Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw,

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The stable and complex EPR signals produced by the action of ionizing radiation on crystalline L-sorbose (C6H12O6) separated from rowan berries (Sorbus...

Study on radiation-induced radicals giving rise to stable EPR signal suitable for the detection of irradiation in L-sorbose-containing fruits

Article Category: Regular Paper

Published Online: Oct 26, 2016

Page range: 461 - 465

Received: Nov 25, 2015

Accepted: May 31, 2016

DOI: https://doi.org/10.1515/nuka-2016-0075

Keywords
sorbose, crystallite, electron paramagnetic resonance (EPR), irradiation

© by Grzegorz P. Guzik

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Study on radiation-induced radicals giving rise to stable EPR signal suitable for the detection of irradiation in L-sorbose-containing fruits

Article Category: Regular Paper

Published Online: Oct 26, 2016

Page range: 461 - 465

Received: Nov 25, 2015

Accepted: May 31, 2016

DOI: https://doi.org/10.1515/nuka-2016-0075

Keywordssorbose, crystallite, electron paramagnetic resonance (EPR), irradiation

© by Grzegorz P. Guzik

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
sorbose, crystallite, electron paramagnetic resonance (EPR), irradiation