Vinegar can be used as food preservative due to the presence of _________.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. acetic acid
Vinegar is widely used as a food preservative due to the presence of acetic acid. This organic acid, typically found in concentrations of 4-7% in vinegar, significantly lowers the pH of food. The resulting acidic environment inhibits the growth and reproduction of most spoilage-causing microorganisms like bacteria, molds, and yeasts. Acetic acid also interferes with their metabolic processes, effectively preserving the food and extending its shelf life without refrigeration. This makes vinegar a natural and effective choice for pickling and other preservation methods.