Effect of bread making process on heavy metals content of Egyptian breads

ABSTRACT

A total of 105 samples of flour, dough and bread from 35 bakery units were selected from various areas of Cairo The contents of lead [Pb], cadmium [Cd], cupper [Cu] and iron [Fe] were determined using atomic absorption spectrophotometer. Effect of breadmaking process was evaluated regarding heavy metals content. Results showed that slight increase of heavy metals content in flour compared to [Codex], i.e., Pb ranged between 0.177 - 2.98mg/kg m. Balady bread and ranged between 0.480 - 2.860mg/kg in Fino bread [0.5 mg/kg] while Cd ranged between 0.093 - 0.197 mg/kg in Balady bread and ranged between 0.071-0.176mg/kg in Fino bread [0.1 mg/kg]. Heavy metals increased as flour extraction increased .Also heavy metals content affected by breadmaking process. Breads had higher content of heavy metals than its dough or flour. Balady bread had higher content of determined heavy metals than Fino bread