Effect of gamma irradiation on elimination of aflatoxins produced by apple mycoflora in apple fruits
2003
Afifi, A.F. | Foaad, M.A. | Fawzi, E.M. (Ain Shams University, Cairo (Egypt). Dept. of Biological Sciences)
The influence of ionizing radiation on the growth of apple mycoflora and the aflatoxins production was investigated. Four strains of fungal isolates: Aspergillus flavus, A. fumigatus, A. niger and Penicillium expansum were used. Four doses of gamma radiation were applied (0.5, 1.0, 1.5 and 2 KGy). The elimination of aflatoxins under selected conditions was detected by using HPLC techniques. Doses of 0.5 KGy stimulated the production of aflatoxins by all fungi tested while 1.0-2.0 KGy reduced the aflatoxins production. The results showed the necesity of irradiation of fresh apple fruits followed by good preservation conditions. The results showed also that the effect of radiation is influence on the apple mycoflora producing aflatoxins and not the apple itself
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