Zech J.,Research Institute for Special Analysis |
Zech J.,TU Berlin |
Manowski A.,Research Institute for Special Analysis |
Manowski A.,TU Berlin |
And 4 more authors.
BrewingScience | Year: 2015
A set of 9 bisphenolic compounds has been analyzed from canned beer after liquid-liquid extraction (LLE). Namely bisphenol A (BPA), bisphenol F (BPF), bisphenol S (BPS), bisphenol A diglycidyl ether (BADGE), BADGE·2H2O, BADGE·H2O, BADGE·HCl·H2O, BADGE·2HCl, and BADGE·HCl have been examined. Stable isotope dilution assay (SIDA) using high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied. Spiking and extraction experiments from Pilsner, wheat, and black beer resulted in recoveries from 75 to 118 %. For application experiment, 14 canned beer samples have been examined for bisphenolic content. Lead substances BPA and BADGE·2H2O were tested positive in 14 out of 14 samples. Concentration ranges varied from 0.10 to 2.54 μg/l and 0.64 to 14.3 μg/l, respectively. Concentrations of BADGE·2H2O were herein in accordance with the specific migration limit set by the European Union. For BPA and BADGE·2H2O dietary intakes were calculated using the highest concentrations determined. The resulting daily intakes amounted to below 1 % of the current tolerable daily intakes. It can thus be concluded, that the examined set of canned beers can be considered to be safe for the consumer.