Sorbic acid

Definition

Sorbic acid is an organic compound commonly used as a food preservative due to its antimicrobial properties. It inhibits the growth of mold, yeast, and some bacteria.

5 Must Know Facts For Your Next Test

1. Sorbic acid is effective at low pH levels, making it suitable for acidic foods and beverages.
2. It works by disrupting microbial cell membranes and interfering with enzyme activity.
3. Sorbic acid is often used in combination with other preservatives to enhance its effectiveness.
4. It is generally recognized as safe (GRAS) by regulatory agencies like the FDA and EFSA.
5. Microorganisms can develop resistance to sorbic acid over time, necessitating periodic reevaluation of its use.

Review Questions

• What types of microorganisms does sorbic acid inhibit?
• Why is sorbic acid particularly effective in acidic environments?
• How does sorbic acid disrupt microbial cells?

Related terms

Preservative: A substance used to prevent the decomposition of food and other perishable items.

Benzoic Acid:

Another common food preservative known for inhibiting mold and yeast.

GRAS (Generally Recognized As Safe): A designation by the FDA that a chemical or substance added to food is considered safe by experts.