1. bookVolume 61 (2016): Issue 4 (December 2016)
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eISSN
1508-5791
First Published
25 Mar 2014
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4 times per year
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English
Open Access

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

Published Online: 26 Oct 2016
Volume & Issue: Volume 61 (2016) - Issue 4 (December 2016)
Page range: 461 - 465
Received: 25 Nov 2015
Accepted: 31 May 2016
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
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.

Keywords

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