Carboxymethyl cellulose (CMC) is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is a water-soluble semi-synthetic polysaccharide produced from wood pulp or refined cotton. CMC is synthesized by treating alkali cellulose with monochloroacetic acid, causing sodium carboxymethyl cellulose to be formed. It functions as a thickening and emulsifying agent, as well as a suspension agent, used to increase viscosity in foods, cosmetics, detergents, pharmaceuticals and other industrial applications.
Food Industry Dominates CMC Consumption
The food industry accounts for over 40% of global CMC consumption. Carboxymethyl Cellulose widely used as a thickening, stabilizing and binding agent in various food products. Some common food applications include sauces, soups, salad dressings, dairy products, processed meats, baked goods and confectionery items. CMC helps improve texture, prevents ingredient separation and controls moisture levels. It is a popular substitute for fat, offering low-calorie thickening of foodstuffs. The non-toxic nature and bland flavor profile of CMC makes it compatible for use in a wide range of cuisines.
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