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Abstract
The migration kinetics of bisphenol-A-diglycidyl-ether (BADGE) from processed and non-processed model cans into vegetable oil was investigated as a function of the process treatment and the temperature of storage. Cans were either not heat-treated at all or were processed at 115 ° C for 30min or for 1 h after filling with oil. Each series of experiments comprised 30 samples and was further divided into three groups to be stored at different temperatures (20, 40 and 60 ° C). Aliquots from the samples were taken at regular intervals for >1 year. Samples were analysed for BADGE by highperformance liquid chromatography with fluorescence detection. The results showed that temperature processing had the largest effect on migration of BADGE. Storage temperature also significantly influenced migration from non-processed cans, in particular at higher storage temperatures such as 60 ° C. Some samples were subjected to 60 ° C storage after an initial period at 20 ° C and an effect on migration was also noted, although to a much lesser extent than from processing. The results of migration at higher temperatures were also correlated to the potential degradation of BADGE from oxidation products.
