Effects of baking factors and recipes on the quality of butter cookies and the formation of advanced glycation end products (AGEs) and 5-hydroxymethylfurfural (HMF).

Maillard reaction during food processing contributes to the formation of some unpleasant heat-induced toxicants including advanced glycation end products (AGEs) and 5-hydroxymethylfurfural (HMF), which have been linked to various health risks. The effects of baking factors and recipes, such as baking temperature (130°C-180 °C) and time (8 min-15 min), sucrose levels (0 g-20 g), butter levels (0 g-20 g) and egg liquid levels (0 g-12 g) on the formation of free N-(carboxymethyl)lysine (CML), free N-(carboxyethyl)lysine (CEL), protein-bound CML, protein-bound CEL, HMF, glyoxal (GO), methylglyoxal (MGO), 3-deoxyglucosone (3-DG) and on the sensory qualities were investigated in butter cookies. The results suggested that the levels of AGEs initially increased and then followed by decrease as baking temperature and time increased, HMF is very sensitive to baking temperature and time and grows sharply. The changes of protein-bound AGEs are lagging behind that of free AGEs. The proportions of sucrose, butter and egg liquid in butter cookies were positively correlated with AGEs, with sucrose greatly promoting on the formation of HMF and 3-DG. In addition, the high level of sucrose and butter in cookies is preferred by panelists, especially in terms of appearance, taste and smell.