EFFECT OF GAMMA RADIATION ON THE STRUCTURE AND
|N.R.A. El-Mouhty1,3, H. M. H. Gad 2. A. Y. El-Naggar, 1, 5 R.F. Hassan3,6,.& N.A. Abdel Latif 3,4
Labelled Compounds Department, Radioisotopes Production and Radioactive Sources Division, Hot Laboratories Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt1.
Chemistry Department and environmental cont rol, Hot laboratories and Waste Management Center, Atomic Energy Authority, P.O. 13759, Cairo, Egypt2.
Chemistry Department, Faculty of Science, Taif University, 888-Taif, KSA3.
Associate professor of natural products, Chemistry Department, Pharmaceutical Industries Division, National research center, Dokki, Egypt4.
.Egyptian Petroleum Research Institute-Nasr City, Cairo, Egy pt • 5
Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt6.
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This work investigates mainly the effect of gamma radiation on chlorophyll and carotene of the coriander seeds. The coriander seeds were irradiated at different doses of gamma radiation (10, 20, 40 Gy). After irradiation, the coriander seeds were grown and the plant pigments as chlorophyll and carotene were extracted by mashing method. Different parameters such as solvent extraction, contact time and weight of plant were studied before and after irradiation to determine the best irradiation dose and optimum condition of extraction of the these pigment. It can be concluded that the optimum conditions for extraction of these pigments were as the following; 2gm coriander plant, reaction time of 45 min and 85% concentration of acetone for solvent extraction. From the FTIR spectrum of chlorophyll and carotene, it can be concluded that the irradiation of coriander seeds with 10 Gy dose had no effect on coriander plant.