Etymology:
Meaning:
A preservative is a substance that is added to food, beverages, cosmetics, or other materials to prevent spoilage or deterioration. Preservatives may inhibit the growth of bacteria, fungi, or other microorganisms, or they may prevent chemical changes that can cause spoilage.
Origin:
The practice of preserving food dates back to ancient times. Egyptians preserved food by drying it in the sun or by pickling it in salt. Romans used vinegar and honey as preservatives. The use of chemical preservatives became more common in the 19th century, with the development of new chemical processes.
Today, a wide variety of preservatives are used in the food industry, including:
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