Vinegar can be used as food preservative due to the presence of _________.
acetic acid
The correct answer is acetic acid.
It is a simple carboxylic acid with a pungent smell and sour taste. It is widely used not only in food preservation but also in the production of plastics, textiles, and pharmaceuticals. In food, besides preservation, it contributes to the flavor of pickles, salad dressings, and sauces. The concentration of acetic acid in table vinegar is typically 5%, while pickling vinegar can have concentrations up to 18% for stronger preservation.
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