What is the main purpose of food preservatives like potassium sorbate?

The main purpose of food preservatives like potassium sorbate is to prevent spoilage. Potassium sorbate is an effective antimicrobial agent that inhibits the growth of mold, yeast, and some bacteria, thereby extending the shelf life of food products. By preventing microbial growth, it helps maintain the quality of food, ensuring that it remains safe to consume for a longer period. This preservation is particularly important in products that are prone to spoilage, such as baked goods, dairy products, and beverages. While some food additives may enhance flavor, add nutritional value, or improve texture, the primary function of potassium sorbate specifically aligns with its role in prolonging the freshness and safety of food items.