Application of thermoluminescence measurements to detect irradiated strawberries

Abstract

The thermoluminescence intensity of unirradiated and irradiated strawberries was studied with regard to dose response, storage time, and different varieties. An identification method could finally be developed. Further investigations were carried out to determine the origin of the thermoluminescence effect, which was found to be attributable to mineral grains adhering to the sample surface.

Effect of gamma irradiation on thermoluminescence emissions from dust of Asian plant nuts

“…It may be useful to combine TL measurements with some other methods like viscosity determination etc. as suggested by Heide et al [16]. The combination of results from two or more experimental techniques would then be more reliable conclusive and particularly important in view of wide variations in the TL response.…”

“…Earlier reports claimed that TL is one of the several techniques recommended for adaptation as reliable and simple identification method for herbs, spices and fruits [9,11,12]. Some other workers [13] Experiments were conducted to see the effect of irradiation on the thermoluminescence emission from dust of plant nuts such as almond, peanut, pinenut and walnut.…”

“…Though differences between irradiated and unirradiated spices have been reported by many workers employing Values are means of 2 determinations. different techniques like TL, CL and free radical dosimetry [6,11,17,18,19], their reproducibility during the extended period of storage was not studied for different food materials. It may be useful to combine TL measurements with some other methods like viscosity determination etc.…”

Effect of gamma-irradiation on thermoluminescence values in dried fruits

“…It may be useful to combine TL measurements with some other methods like viscosity etc. as suggested by HEIDE et al 13 The combination of results from two or more experimental techniques would then be more reliable, conclusive and particularly important in view of wide variations in the TL response. The data in our studies were obtained after 15 days of irradiation treatment and it was concluded that irradiation treatment profoundly increased the TL intensities in dried apricots dates and raisins and the results were significantly dose dependent and that TL measurements with properly separated minerals can possibly be employed for identification as well as measurement of absorbed dose in irradiated dried fruits.…”