Abstract
Aflatoxin B1 is the most potent hepatocarcinogen known in animals and it is classified by the International Agency of Research on Cancer (IARC) as Group I carcinogen meaning that it is a proven cancer-inducing agent. It also occurs in the environment contaminating a lot of different food and feed commodities. The aim of this study was to assess the possible effect of gamma irradiation on the reduction of aflatoxin B1 in some cereal grains and the impact on nutritive values including, ash, &moisture. It was found that maize samples contain the highest level of aflatoxin B1 than wheat and rice. Gamma irradiation is a suitable technique which reduces the levels of aflatoxin B1 in cereal samples without affecting the nutritive values, at 4 KGy the reduction percents of aflatoxin B1 were 15.54%, 22.25%, and 27.46% for maize, wheat, and rice respectively whereas at 6 KGy the reduction percents of aflatoxin B1 were 32.39%, 43.84%, and 56.38% respectively and the 8 KGy radiation dose remove about 60.26% of the toxin in maize, 64.68% in rice and 69.29% in wheat samples. Higher radiation doses than 8 KGy are required to remove the toxin until it reaches the legal limit (5ppb) according to FAO.
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