Work

Irradiated fruits can be identified by detecting radiation-induced markers with luminescence and ESR analyses for different trading fruits

Year: 2016

Type: article

Abstract: Photostimulated luminescence (PSL) or thermo-luminescence (TL) analysis and electron spin resonance (ESR) spectroscopy were performed to detect radiation-induced markers in various trading fruits, such as oranges, grapefruits, mandarins, lemons, limes, bananas, and pineapples. All the unknown samples were identified as non-irradiated fruits, and gamma irradiation at 1 kGy permitted dose by Codex and US FDA was applied to investigate radiation-induced markers. The photon counts for all calibrated PSL samples revealed higher than 5000 (positive) except banana. The ESR triplet signals were detected as a radiation-induced marker resulting from cellulose existing in irradiated fruits excluding banana. The unambiguous identification of irradiated banana was impossible by both techniques. However, isolated minerals from all fruit samples showed radiation-induced typical TL glow curves through the normalization step, confirming the feasible application of TL analysis for identifying irradiation status of all the subjected trading fruits.

Source: Applied Biological Chemistry

DOI: 10.1007/s13765-015-0132-9

Authors: Yunhee Jo, Hyun-Kyu Kyung, Hae-Jun Park, Joong-Ho Kwon

Institutions: Kyungpook National University, Korea Atomic Energy Research Institute

Language: English

Topic: Radiation Effects and Dosimetry

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $1,690