Carboxymethyl cellulose(cmc) is a kind of anionic polymer and cellulose derivative with carboxymethyl groups bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is often used as its sodium salt, sodium carboxymetyl cellulose. CMC always be used in frozen foods as dispersing agent and excipients, prevent from ice crystals, keep final products' uniformity, enlarge the volume, improve taste; adding CMC in baking foods, can enhance toughness, prevent breakage, improve dough surface gloss and flavor.
