Irrespective of the inherent acidity of food ingredients, incorporating food acids is essential to maintain a consistent acid level. Examples of natural acids encompass acetic acid sourced from vinegar, citric acid derived from citrus fruits for trace metal control and oxidation prevention, malic acid from apples and figs, and tartaric acid, a mild acid. These acids are introduced into foods to improve flavor and manage tartness.
Lactic acid, present in nearly all living organisms, acts as an acidity regulator. It is employed in cheese making to balance acidity and imparts tartness to various other foods. Calcium propionate, an acid salt, is added to bread to regulate its pH, while sodium lactate, the salt of lactic acid, is utilized in processed meat and poultry products.
Alkaline elements, such as sodium bicarbonate (baking soda), sodium hydroxide employed in modified starches, and potassium hydroxide, contribute to neutralizing excess acidity that could otherwise result in undesirable flavors. In the food industry, these alkaline compounds play a role in leavening and softening hard water.
pH Regulation with Acids
