sulphate, 18% with calcium sulphate, 33% with BHT, and 44% with
BHA. Reduced furan formation occurred in the order: sodium sulphite
> iron sulphate > BHA > BHT > calcium sulphate > magnesium
sulphate. In the case of the ribose/serine model systems
including various food additives, furan formation decreased by
8–75%, except when zinc sulphate and magnesium sulphate were
used. A significant decrease in furan formation was observed with
sodium sulphite (75% decrease), and then it increased with zinc
sulphate (87% increase). Metal ions led to a 32% decrease in furan
formation with iron sulphate, 8% with calcium sulphate and an 87%
increase with zinc sulphate. Furan formation increased slightly by
0.5% after adding magnesium sulphate. According to the previous
study, pH is one of the important factors affecting to the formation
of furan (Crews, Hasnip, Roberts, & Castle, 2007). Since the food
additives used in this study have varying degrees of acidity the
major factor to affect the formation of furan is pH in the model