to be treated with ionising radiation have been supplied by V.Besana S.p.A. Company based in S.Gennaro Vesuviano (Na,Italy)in form of fresh ground flour from peeled and unpeeled seeds coming from different production sites Each kind of flour has been divided into two parts One has been irradiated and the other one has been used as a control sample The control sample has been subjected to the same conditions of transport storage and analysis of the irradiated flour