Detection of irradiated cheese and exotic fruits by a simple routine control method

The results demonstrate very clearly that Florisil chromatography is a suitable routine method to detect irradiation treatment in Camembert, mango seeds and avocado flesh. Inspite of excluding 1-14:1 as marker for irradiation treatment on account of fat attendant flavour compounds in fruits, an unequivocal revelation of irradiated samples was possible because the most important radiation-induced hydrocarbons 1,7-26:2 and 8-14:1 (arising from oleic acid) could be clearly detected in both fruits. In addition, high amounts of 1-16:1 from stearic acid are present in irradiated mango and 6,9-17:2 from linoleic acid in avocado. (orig.)