Preservative

A preservative could be a substance or a chemical that's another to merchandise like food, beverages, pharmaceutical medication, paints, biological samples, cosmetics, wood, and plenty of different merchandise to forestall decomposition by microbic growth or by undesirable chemical changes. In general, preservation is enforced in 2 modes, chemical and physical. Chemical preservation entails adding chemical compounds to the merchandise. Physical preservation entails processes like refrigeration or drying.[1] Preservative food additives scale back the danger of foodborne infections, decrease microbic spoilage, and preserve contemporary attributes and biological process quality. Some physical techniques for food preservation embody dehydration, UV-C radiation, freezing, and refrigeration. Chemical preservation and physical preservation techniques square measure generally combined.