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Analysis of electron spin resonance spectra for the identification of complex ESR signals using irradiated standard marker materials

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Abstract

European standards EN1787 and EN13708 specify spectroscopic methods for the detection of irradiated food. Electron spin resonance (ESR) spectral characteristics of radiation-induced radicals in standard marker materials (cellulose, glucose, fructose, and saccharose) were compared. Standard marker materials were gamma-irradiated (0 and 10 kGy) and mixed at different blending ratios (0–100 %) to evaluate their sensitivity upon ESR detection. Blended samples produced specific ESR signals which showed increased intensities by an increasing percentage of the irradiated component. However, detection was possible with 30 % irradiated component. The results could be helpful in interpreting complex ESR signals in plant materials containing cellulose and sugar materials.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Education (MOE) (No. NRF-2013R1A1A4A03006993).

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Authors and Affiliations

  1. School of Food Science and Biotechnology, Kyungpook National University, Daegu, 702-701, South Korea

    Hafiz Muhammad Shahbaz, Hyun-Kyu Kyung, Hyo-Young Kim & Joong-Ho Kwon

  2. Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, South Korea

    Hafiz Muhammad Shahbaz

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  1. Hafiz Muhammad Shahbaz
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  2. Hyun-Kyu Kyung
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Correspondence to Joong-Ho Kwon.

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Shahbaz, H.M., Kyung, HK., Kim, HY. et al. Analysis of electron spin resonance spectra for the identification of complex ESR signals using irradiated standard marker materials. J Radioanal Nucl Chem 306, 93–97 (2015). https://doi.org/10.1007/s10967-015-4075-8

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  • DOI: https://doi.org/10.1007/s10967-015-4075-8

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