Identification and dosimetry of irradiated walnuts (Juglans regia) using EPR
Maghraby, A; Salama, E; Sami, A; Mansour, A; Soliman, El-Sayed;
Abstract
Electron paramagnetic resonance (EPR) is an easy, fast, and reliable tool for identification of irradiated food. Untreated nuts may encounter hazards of carrying several pathogens or microbial contamination; walnuts are of specific importance due to their nutritional and medicinal values, and hence walnut processing via gamma irradiation is a necessary step. EPR was employed for the identification and dosimetry of Cs-137 gamma-irradiated walnuts (shells and kernels). Several important parameters were studied, such as spectral features, microwave power dependence of signal intensities, and short- and long-term time dependences. Responses of walnut shells and kernels to different radiation doses in the range 0-10kGy were investigated. Results confirmed that EPR is a suitable tool for the identification and dosimetry of irradiated walnuts using either their shells or only kernels. © 2012 Taylor & Francis.
Other data
Title | Identification and dosimetry of irradiated walnuts (Juglans regia) using EPR | Authors | Maghraby, A; Salama, E; Sami, A; Mansour, A; Soliman, El-Sayed | Keywords | radiation dosimetry;walnut;ESR;EPR;food irradiation;ELECTRON-PARAMAGNETIC-RESONANCE;FOODSTUFFS;FRUITS | Issue Date | 2012 | Publisher | TAYLOR & FRANCIS LTD | Journal | Radiation Effects and Defects in Solids | Volume | 167 | Issue | 3 | Start page | 170 | End page | 178 | ISSN | 1042-0150 | DOI | 10.1080/10420150.2011.608358 | Scopus ID | 2-s2.0-84860791131 | Web of science ID | WOS:000300852100003 |
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