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DETECTION OF SOME IRRADIATED NUTS BY ELECTRON SPIN RESONANCE (ESR) TECHNIQUE

Abstract

The present investigation was carried out to establish the electron spin resonance (ESR) detection method for identifying irradiated nuts (almond and pistachio). Samples were irradiated with 2, 4 and 6 kGy and stored at room temperature (25{+-} 2{sup 0}C) for six months to study the possibility of detecting its previous irradiation treatments by ESR spectroscopy. Analysis was carried out just after irradiation treatment and during ambient storage period. The ESR signal intensities of irradiated samples were markedly increased correspondingly with irradiation dose as a result of free radicals generated by gamma irradiation so, all irradiated samples under investigation could be differentiated from non-irradiated ones immediately after irradiation treatment. The decay in radicals responsible of ESR signals showed the identification of irradiated almond (shell or edible part) and pistachio (edible part) was impossible after six months of ambient storage.
Authors:
KHALLAF, M F; YASIN, N M.N.; [1]  EL-NASHABY, F M; ALI, H G.M.; EL-SHIEMY, S M [2] 
  1. Food Science Dept., Faculty of Agriculture, Ain Shams University, Cairo (Egypt)
  2. Nuclear Research Centre, Atomic Energy Authority, Cairo (Egypt)
Publication Date:
Jul 01, 2008
Product Type:
Journal Article
Resource Relation:
Journal Name: Isotope and Radiation Research; Journal Volume: V.40; Journal Issue: 4S1
Subject:
60 APPLIED LIFE SCIENCES; ELECTRON SPIN RESONANCE; GAMMA RADIATION; IRRADIATION; NUTS; RADICALS; RESERVOIR TEMPERATURE; SPECTROSCOPY; STORAGE
OSTI ID:
21238602
Country of Origin:
MERRAC
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0021-1907; ISRRAC; TRN: QQ0900079101624
Submitting Site:
INIS
Size:
page(s) 1323-1352
Announcement Date:
Dec 17, 2009

Citation Formats

KHALLAF, M F, YASIN, N M.N., EL-NASHABY, F M, ALI, H G.M., and EL-SHIEMY, S M. DETECTION OF SOME IRRADIATED NUTS BY ELECTRON SPIN RESONANCE (ESR) TECHNIQUE. MERRAC: N. p., 2008. Web.
KHALLAF, M F, YASIN, N M.N., EL-NASHABY, F M, ALI, H G.M., & EL-SHIEMY, S M. DETECTION OF SOME IRRADIATED NUTS BY ELECTRON SPIN RESONANCE (ESR) TECHNIQUE. MERRAC.
KHALLAF, M F, YASIN, N M.N., EL-NASHABY, F M, ALI, H G.M., and EL-SHIEMY, S M. 2008. "DETECTION OF SOME IRRADIATED NUTS BY ELECTRON SPIN RESONANCE (ESR) TECHNIQUE." MERRAC.
@misc{etde_21238602,
title = {DETECTION OF SOME IRRADIATED NUTS BY ELECTRON SPIN RESONANCE (ESR) TECHNIQUE}
author = {KHALLAF, M F, YASIN, N M.N., EL-NASHABY, F M, ALI, H G.M., and EL-SHIEMY, S M}
abstractNote = {The present investigation was carried out to establish the electron spin resonance (ESR) detection method for identifying irradiated nuts (almond and pistachio). Samples were irradiated with 2, 4 and 6 kGy and stored at room temperature (25{+-} 2{sup 0}C) for six months to study the possibility of detecting its previous irradiation treatments by ESR spectroscopy. Analysis was carried out just after irradiation treatment and during ambient storage period. The ESR signal intensities of irradiated samples were markedly increased correspondingly with irradiation dose as a result of free radicals generated by gamma irradiation so, all irradiated samples under investigation could be differentiated from non-irradiated ones immediately after irradiation treatment. The decay in radicals responsible of ESR signals showed the identification of irradiated almond (shell or edible part) and pistachio (edible part) was impossible after six months of ambient storage.}
journal = []
issue = {4S1}
volume = {V.40}
place = {MERRAC}
year = {2008}
month = {Jul}
}