01259naa a2200217 a 450000100080000000500110000800800410001910000210006024500960008126000090017752006360018665000130082265000170083565000100085265300080086270000200087070000190089070000240090970000190093377300890095210286872010-03-08       2004    bl ---       0--  u    #d1 aFRANCO, R. W. A.  aIdentification of irradiation treatment in black pepper by electron paramagnetic resonance.  c2004  aElectron paramagnetic resonance spectroscopy was applied to  study free radicals in black pepper, and to evaluate the potential ofthese radicalsin identifying radiation treatment. A doublet signal was detected at g = 2.0042 and a = 1.83 mT, produced exclusively by radiolysis. This signal is as stab1e as that of irradiated cellulose, and can be used to identify recent radiation treatment. A line produced both by radiolysis and thermolysis was observed, and its behaviour with thermal treatments suggests that it cannot be used as an irradiation indicator for doses up to 30 kGy, contradicting a model proposed in lhe literature.  aAlimento  aIrradiação  aSabor  aEPR1 aMARTIN-NETO, L.1 aKATO, M. S. A.1 aFURLAN, J. M. M. W.1 aCOLNAGO, L. A.  tInternational Journal of Food Science and Technology, Oxfordgv.39, p.395-401, 2004.