Abstract:

The trausfomation of nitrate to nitrite was studied. When nitrate solution or vegetables were cooked with utensi1s made of different materials like aluminum, aluminum oxide, iron and stainless-steel respectively. Cooking either nitrate solution or vegetables with utensils made of aluminum, the transfomation rates were the lowest, 0.07% and 0.0028% respectively. Therefore utensil made of stainless-steel was the first choice fur cooking.