Identification and dosimetry of irradiated pistachio (Pistacia vera L.) using EPR

Document Type

Article

Publication Date

2022

Abstract

In the current study, the EPR signal of both gamma-irradiated shell and kernel of the pistachio is recorded and investigated. The spectrum properties, microwave power dependency of signal intensities, short- and long-term temporal dependencies, and other significant factors are studied. This investigation was done on how varying radiation doses (0–10 kGy) affected the reactions of pistachio shells and kernels. The time dependence of the radiation-induced signal intensity of pistachio showed that the maximum intensity reached about 98.75% and 67% of its original value for shells and kernels, respectively, after the first six hours. These results indicate that EPR is an effective tool for gamma-irradiated pistachio identification and dosimetry, whether employing pistachio shells or kernels.

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