Potassium sorbate

Definition

Potassium sorbate is a chemical compound used as a preservative to inhibit the growth of molds, yeasts, and bacteria in food and cosmetics. It is a potassium salt of sorbic acid and is often used in its granular or powder form.

5 Must Know Facts For Your Next Test

1. Potassium sorbate disrupts microbial cell membranes, inhibiting cellular functions.
2. It is effective in low pH environments, making it suitable for acidic food preservation.
3. Commonly used concentrations range from 0.025% to 0.10% in food products.
4. Potassium sorbate is generally recognized as safe (GRAS) by the FDA.
5. It does not significantly alter the taste or smell of food products where it is applied.

Review Questions

• How does potassium sorbate inhibit microbial growth?
• In what types of environments is potassium sorbate most effective?
• What are typical concentration ranges for potassium sorbate in food preservation?

Related terms

Sorbic Acid:

A naturally occurring antimicrobial agent that forms the basis for potassium sorbate.

Benzoic Acid:

A preservative that inhibits mold and bacterial growth in acidic foods.

Sodium Benzoate:

A sodium salt of benzoic acid used as a preservative in acidic foods and beverages.