Foods containing flour must be baked before they can be eaten, to enable the starch in the flour to become digestible. Cakes and bread contain a raising agent that contains an acid and an alkali. These react to liberate carbon dioxide, which makes the baking flour rise.
Students investigate different combinations of raising agents in the baking of scones.
Citric acid
July 17, 2018
Foods like oranges, lemons, yogurt and apples have a sharp taste because they contain naturally occurring acids. Citrus fruits contain citric acid, apples contain malic