Detection of irradiated chicken and dosimetric properties of drumsticks bones

An EPR study into the effect of annealing on both the Mn2+ and free radical signal in lentil

“…Scan ranges of 400, 100 and 10 mT were used to record Mn 2+ and free radical signals. The details of the spectrometer operating conditions together with the derivation and correction of the spectra followed the procedure set out elsewhere (Polat et al ., 1997). Receiver gain was adjusted as necessary to obtain the clearest spectra.…”

Application of the ESR spectroscopy to estimate the original dose in irradiated chicken bone

“…1 shows the ESR spectra of a chicken bone sample before (a) and after irradiation at 5 kGy (b). In the ESR spectrum of the unirradiated sample, only the symmetric shape assigned to an organic radical derived from collagen (Wieser et al, 1994;Polat et al, 1997) is present, whereas the irradiated sample shows the typical ESR signal shape, due to the CO 2 À radical in the hydroxyapatite of bone, as well as the collagen signal (Schramm and Rossi, 2000).…”

“…The stability of induced free radicals in the sample matrices, and therefore of the ESR signal intensity, is one of the crucial elements for the identification of irradiated food within the shelf life of the product itself (Onori et al, 1996;Polat et al, 1997).…”