Table of Contents
How is potassium bromate detected in bread?
The qualitative test was performed directly on a portion of each bread sample using 2 ml of 0.01 M promethazine and 0.6 ml of 12 M hydrochloric acid. The change in colour of each bread sample to purple indicates the presence of potassium bromate.
Why potassium bromate is used in bread?
Potassium bromate, or simply called bromate, is an oxidiser used to strengthen dough and enhance its elasticity. This helps bake uniform and whitened bread.
Why is potassium bromate added to flour?
The additive is called potassium bromate, which is added to flour to strengthen the dough, allow it to rise higher and give the finished bread an appealing white color.
Does flour contain potassium bromate?
Bromated flour contains potassium bromate, an oxidizing agent widely used in commercial baking to strengthen and improve dough and promote rising. Some brands of flour sold in supermarkets for home use contain potassium bromate.
How do you know if bread has bromate?
Companies are required to list “bromated flour” in the ingredients list if they use it in their product. Be sure to check the label for your store-bought flours, breads, buns and more. If it says “bromated flour,” it’s best to seek another bread brand.
Which breads contain potassium bromate?
Perfect Bread is the only one lists Potassium Bromate as an ingredient. In the white bread category, Harvest Gold White Bread – Premium Quality tested positive with the highest concentration of 17.32 parts per million ppm.
How can you tell bromate in bread?
The qualitative test was performed directly on a portion of each bread sample using 2ml of 0.01M promethazine and 0.6ml of 12M hydrochloric acid. The change in colour of each bread sample to pink indicates the presence of potassium bromate Results: The 20 bread samples analyzed contain potassium bromate.
Which flour is bromated?
Nearly all the flour in your supermarket has been bromated. Commercial bakers use it for it’s dependable rise. Home bakers use it for the same reasons. The substance, in theory, is supposed to bake out as it cooks, but if any remains behind it can be very harmful.
What is potassium bromate found in?
Where is potassium bromate found? The FDA allows potassium bromate in food as long as it doesn’t exceed 750 parts per million. It can be found in bread, flours, pizza dough, buns, and pretty much anything that would contain flour.
How much potassium bromate is in bread flour?
In the home baked bread (BS3), baked using the flour containing 65 mg/kg potassium bromate, 60 µg/kg of residual bromate was found. This is higher than the safe limit of 20 µg/kg. This could be because bread was baked using flour containing 65 mg/kg bromate, more than the allowed FDA limit (<50 mg/kg) [7].
What is potassium bromate used for in baking?
Potassium bromate is an odorless and tasteless white crystal that is commonly used in the baking industry. It is often added to flour and flour products to improve product quality. Bromate acts by oxidizing thiol groups of the gluten proteins and in the process forming disulfide bonds.
How do you make potassium bromate stock solution?
Potassium bromate standard stock solution (0.0100 mol/l) was prepared by dissolving 0.4175 g of potassium bromate in distilled water and then diluted to 250 ml. Working standard solutions were prepared by appropriate dilution before use. Potassium thiocyanate solution (0.10 mol/l) was prepared in distilled water.