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Irradiated black pepper identification based on thermoluminescence of silicate minerals

  • Fayçal Kharfi
  • Randa Ketfi
Article
  • 66 Downloads

Abstract

In this work we have successfully implemented thermoluninescence TL method for irradiated food identification. First tests are performed on Indian black pepper and show promising results to extend the proposed method to many other foods. The X-ray diffraction (XRD) shows that SiO2 (p3221) is the main component of the separated mineral phase. A saturation dose of ~ 100 Gy is determined for this pepper above which all thermoluminescent centers of the quartz are activated. Thus, above this threshold dose, only the pepper irradiation will be confirmed but no accuracy on the exact dose received.

Keywords

Food irradiation Quartz Thermoluminescence Density separation X-ray diffraction 

Notes

Acknowledgements

The authors take pleasure in acknowledging the assistance of Dr. A. Hayoune from the polytechnics school of Constantine in the XRD analysis. We want also to thank Pr. A. Boucenna for his effort in the acquisition of the very powerful Risø TL/OSL-DA-20 reader.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of Ferhat Abbas-Setif1SetifAlgeria
  2. 2.Laboratory of Dosing, Analysis and Characterization With High Resolution (DAC)SetifAlgeria

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