PH Control Substances

PH Control Substances
Natural or synthetic acid or alkali ingredients change or maintain the initial pH of a product.

For example, acidulents flavor, preserve and regulate pH.

The acid ingredients regulate by lowering the pH and preserve foods by inhibiting microbial growth.

Regardless of the acid level of food ingredients, food acids are incorporated into foods in order maintain a constant acid level.

Natural acids include the following acetic acid or vinegar and citric acid from citrus, which control unwanted trace metals otherwise catalyzing oxidation reactions; malic acid (an organic acid from apples and figs); and tartaric acid (a weak acid).

These acids may be added to foods to impart flavor and control tartness.

Lactic acid present in almost all living organisms, is an acidity regulator and is used in balancing the acidity in cheese making, as well as adding tartness to many other foods.

The acid salt calcium propionate is added to control pH of breads.

Sodium lactate (the salt of lactic acid) may be used in processed meat and poultry products.

Examples of alkaline ingredients include sodium bicarbonate (baking soda), an ingredient that balances the acid component of baking powder, sodium hydroxide, used in modified starches, and potassium hydroxide.

Alkaline compounds are used to neutralize excess acid that otherwise could produce unwelcome flavors. In food they leaven and soften hard water.
PH Control Substances