A Preservatives Is a Substance or Chemical That Is Added To Products like Food

 

Preservatives 

Preservatives are substances or chemicals that are added to drugs, food products, beverages, paints, cosmetics, and wood to prevent microbial growth and undesirable changes in physical and chemical properties. Preservatives are classified into two types: natural and synthetic, and both are used to improve the quality of the final product. Natural preservatives such as antioxidants, vitamin E, rosemary extracts, and seed extracts are abundant in nature and are frequently derived from plants. Chemical components processed and added to the end product include benzoic acid, sodium nitrite, sulphur dioxide, and potassium sorbate.

Antimicrobial preservatives are preservatives that are added to finished products to inhibit the growth of microorganisms. Antimicrobial agents commonly used as Preservatives include benzoic acid, lactic acid, nitrate, nitrite, propionic acid, and sulfites. Antioxidants are preservatives that are used to inhibit the oxidation process, particularly in stored food items. Foods with a high fat content are more likely to be damaged during the oxidation process. Antioxidants are used in such foods to combat oxidation and significantly extend the shelf life of packaged foods. Vitamin C, Vitamin E, carotenoids, lutein, selenium, and lycopene are some of the major antioxidants used as preservatives.

Types of Preservatives-

·        Natural

·        Synthetic

Basic Functions of Preservatives

·        Antimicrobials

·        Antioxidants

In the construction industry, preservatives are widely used in wood, steel, and glass materials to enhance their quality and increase their shelf life. Preservatives are widely used in the pharmaceutical and cosmetics industries to extend product shelf life and improve product stability. The presence of microbes or water in the final product causes a rapid deterioration in the quality and effectiveness of cosmetic products. Cosmetic preservatives are used in the formulation of face masks, sunscreens, scrubs, and lotions as antioxidants, stabilisers, and antimicrobials. Preservatives for cosmetics are available in wet wipes, rinse off, and leave-on forms.

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