The effect of lowdose irradiation on the physicochemical changes of potatoes during storage [in Bangladesh]
1985
Islam, M.S. | Karim, A. | Langerak, D.I. | Hossain, M.M.
Potatoes were irradiated with 0.25,50,75 and 100 Gy and stored at 10oC and 85% R.H. for 180 days to find out a balanced dose for effective sprout inhibition and decreased rottage during storage in Bangladesh. Weight loss, sprouting, rotting, contents of vitamin C and sugar, and organoleptic properties of the stored potatoes were investigated the control tubers and those irradiated with 25 Gy were 100% sprouted within 45 and 135 days of storage respectively. At 50 Gy there was about 14% sprouting and about 7.3% rottage during 180 days of storage whereas at 75 and 100 Gy, sprouting was completely inhibited but the rottage was 10% and 14.7% respectively. Irradiation caused about 15% loss of vitamin C but during storage, the rate of loss of vitamin C was similar between control and irradiated tubers. Immediately after irradiation, potato tubers displayed a transient increase in total sugar content but during storage, the total sugar content of the irradiated potatoes decreased as compared to the control.
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