Benzoic Acid

Benzoic acid (E210) is an antimicrobial food preservative that prevents the growth of mold, yeast, and bacteria in acidic foods and beverages.

Key Applications

• Drinks: Preserves soft drinks, fruit juices, and flavored waters.
• Condiments: Extends the shelf life of ketchup, salad dressings, soy sauce, and pickles.
• Sweets: Protects jams, jellies, and pastry fillings from spoiling.
• Fermented items: Stabilizes foods and maintains proper microbial balance.

Mechanism & Properties

• pH dependent: Operates best in highly acidic environments (typically below pH 4.5).
• Efficient: Provides highly cost-effective preservation at low concentrations (0.05% to 0.1%) without altering flavor.
• Soluble alternatives: Because pure benzoic acid dissolves poorly in water, food processors often use more soluble salt forms like sodium benzoate or potassium benzoate.