Sodium Benzoate

‌1. Definition & Properties‌

• ‌Chemical Formula‌: C₇H₅NaO₂, a white crystalline powder or granules with slight sweetness

• ‌Solubility‌: Highly water-soluble (53 g/100 mL at room temperature), effective in acidic environments (pH ≤4.5)

‌2. Primary Functions in Food‌

• ‌Preservative‌: Inhibits mold, yeast, and bacteria, especially in acidic foods like carbonated drinks, fruit juices, and pickles

• ‌Synergistic Use‌: Often combined with other preservatives (e.g., p-hydroxybenzoate esters) to enhance efficacy
  

‌3. Common Applications‌

• ‌Beverages‌: Carbonated drinks, fruit juices, and syrups

• ‌Condiments‌: Salad dressings, sauces, and soy sauce

• ‌Processed Foods‌: Jams, preserves, and pickled products

• ‌Confectionery‌: Yogurt toppings and candies