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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:51 |
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Conference: Bucharest University Faculty of Physics 2014 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
EPR study of irradiated herbs
Authors:
Mihaela Raluca SLAVE(1,2), Maria Nicoleta GRECU(3), V. V. GRECU(1)
Affiliation:
1) Physics Faculty, University of Bucharest
2) Naval Academy “Mircea cel Batran”, Constanta
3) National Institute for Material Physics, Magurele-Bucharest
E-mail
vvgrecu@gmail.com
ralucaslave@yahoo.com
Keywords:
EPR, gamma irradiated herbs, decontamination, dill , parsley
Abstract:
Herbs irradiation is used usually for their decontamination of fungi, pathogenic bacteria, toxigenic molds, parasitic organisms. EPR studies are performed just to evidence their irradiation. Therefore the accent is put on radical stability in time and EPR signal intensity dependence on irradiation dose. Less attention is given to radical nature and their dependence on plant nature. In this report a comparative study of two aromatic herbs, dill and parsley, gamma irradiated, is given. Dose dependence of double integrated EPR signal is analyzed in terms of a recombination reaction during the irradiation period. Measurements in two microwave bands, X and Q, allow a better interpretation of EPR signals and the determination of their anisotropy terms. Significant differences between the two aromatic herbs are put in evidence.
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