Co-Authors:
PASTER, N., Departments of Stored Products
JUVEN, B.J., Departments of Stored Products, Food Technology Agricultural Research Organization, The Volcani Center, P. O. B. 6, Bet Dagan, 50250, Israel
GAGEL, S., Departments of Stored Products, Food Technology Agricultural Research Organization, The Volcani Center, P. O. B. 6, Bet Dagan, 50250, Israel
SAGUY, I., Departments of Stored Products, Food Technology Agricultural Research Organization, The Volcani Center, P. O. B. 6, Bet Dagan, 50250, Israel
PADOVA, R., Soreq Nuclear Research Center, Yavne, Israel
Abstract:
The effect of gamma radiation on the quality characteristics o f pomegranate kernels stored in plastic pouches at refrigerator temperatures was studied. Irradiation at doses of 0.2 and 0.4 Mrad markedly reduced the load of potential spoilage microorganisms. Fungal contaminants exhibited much higher radiation resistance than bacterial contaminants, which were eradicated at 0.4 Mrad. The predominant fungus isolated from non‐irradiated pomegranate kernels was Penicillium frequentans while after irradiation at all doses tested kernels yielded the fungus Sporofhrix cyanescens. An adverse effect of irradiation on colour was observed. The results of a taste evaluation panel did not indicate a significant difference between irradiated and control samples. lt is concluded that the feasibility of irradiation for prolonging the storage life of packaged pomegranate kernels is questionable. Copyright © 1985, Wiley Blackwell. All rights reserved
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