Preservative is a substance or a chemical that is added to products such as food, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or from undesirable chemical changes. In general, preservation is implemented in two modes, chemical and physical. Chemical preservation entails adding chemical compounds to the product. Physical preservation entails processes such as refrigeration or drying. These preservatives reduce the risk of food borne infections, decrease microbial spoilage, and preserve fresh attributes and nutritional quality. As Per FSSAI, Food Directorate Health Products and Food Branch Health Canada.