Study of the formation of food hazard factors in fried fish nuggets

Fried fish nuggets were prepared from grass carp. The effects of frying time (180℃, 4-6 min) and pretreatment on the formation of food hazard factors in fried fish nuggets were investigated. Advanced glycation endproducts (AGEs), acrylamide (AA), 5-hydroxymethyl furfural (5-HMF), benzo (a) pyrene (BaP) and trans fatty acids (TFAs) mainly presented on the surface of fried samples, but only few AGEs were detected in the interior. The extension of frying time promoted lipid oxidation and the formation of food hazard factors. At the same frying time, the contents of AA, 5-HMF, TFAs and fluorescent AGEs in flour-coated fish nuggets were higher than those in direct fried fish nuggets, while the contents of Nε-carboxymethyllysine (CML) and BaP were lower. Overall, CML and BaP were the main food hazard factors of the direct fried samples, AA was the main food hazard factor of the flour-coated fried samples.