STUDYING THE MIGRATION AND REPLACEMENT OF METALLIC ELEMENTS FROM SOME COOKWARES TO FOODS UNDER DIFFERENT CONDITIONS

Abstract

Metals supply for humans is fulfilled from food stuffs. This process is affected by many factors i.e. cooking, packaging and handling. The aim of this work is to investigate the migration of iron, aluminum, nickel, chromium, cadmium and lead from cookware to cooked faba bean and strawberries. Cookwares used for the experiment were aluminum, stainless steel and enameled steel, faba bean and strawberries were chosen for the study because they have high content of iron metal. Iron, aluminum, nickel, chromium, cadmium and lead metals were analyzed in faba bean and strawberries before and after cooking for three cycles and upon storage for one week. Results revealed that aluminum migrated from aluminum cookware to cooked faba bean and strawberries as it was increased from 22.29 to 43.2 mg/kg in faba bean at the second cooking cycle and it was increased from 20 to 39.4 in strawberries at third cooking cycle. For other cookwares no migration for aluminum metal after cooking and after storing. Also iron metal migrated from all cookwares to cooked faba bean and strawberries, iron migrated from aluminum cookware to cooked faba bean as it was increased from 53.5 to 66.96 mg/kg at the second cooking cycle and it was increased from 22.4 to 39.97 in strawberries at the first cooking cycle. In case of enameled and stainless steel cookwares iron migrated as it was increased from 53.5 to 115.5 mg/kg in cooked faba bean at the third cooking cycle and it was increased from 22.4 to 30.5 in strawberries at the third cooking cycle in enameled cookware and increased from 53.5 to 77.3 mg/kg at the first cooking cycle in stainless steel cookware in cooked faba bean and it was increased from 22.4 to 29.3 in strawberries at the second cooking cycle. Study the migration of iron and aluminum after storage for 7 days at 3C the results indicated the occurrence of the migration of iron and aluminum metals in some cooking cycles and decreasing in some other cooking cycles. For other metals the migration was in some cycles and decreased in other cycles.