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Enantiomeric fraction of hexabromocyclododecanes in foodstuff from the Belgian market

Abstract : Diet is considered a major route of human exposure to hexabromocyclododecane, a chiral environmental contaminant. A previous study reported on the occurrence of hexabromocyclododecane diastereoisomers in food items of animal origin collected in Belgium. The present study reports further results on corresponding enantiomeric fractions of the same samples. None of the samples could be considered as racemic for the α-isomer suggesting that foodstuff contamination occurred prior to death of the corresponding producing animal and was not the result of the food item being in contact with technical HBCDD. Non-racemic chiral signatures were also observed for β- and γ-isomers. We conclude that, depending on their dietary habits, different individuals might be overall exposed to non-racemic profiles. Considering that toxicological effects are enantiomer-dependent, this could modulate potential adverse effects.
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Submitted on : Monday, August 22, 2022 - 1:56:39 PM
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Ronan Cariou, Svetlana Malysheva, Séverine Goscinny, Bruno Le Bizec, Joris van Loco, et al.. Enantiomeric fraction of hexabromocyclododecanes in foodstuff from the Belgian market. Chemosphere, Elsevier, 2020, 260, pp.127607. ⟨10.1016/j.chemosphere.2020.127607⟩. ⟨hal-03182940⟩



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