Carboxymethylcellulose hydrocolloids

Damianou, K., Kiosseoglou, V. (2006). Stability of emulsions containing a whey protein concentrate obtained from milk serum through carboxymethylcellulose complexation. Food Hydrocolloids, 20, 793-799. 

Other hydrocolloid dressings with formulations consisting of sodium carboxymethylcellulose combined with karaya gum or sodium carboxymethylcellulose on its own are also available. 

Typical shell materials include gum acacia, maltodextrins, CDs, hydrophobically modified starch, and mixtures thereof. Other polysaccharides (alginate, carboxymethylcellulose, guar gum) and proteins (whey proteins, soy proteins, and sodium caseinate) may also be used nevertheless with lower application because of their low solubilities in water, although the addition of a small amount of these low solubility hydrocolloids has shown some beneficial effects on the stability of encapsulated ingredients (Gouin, 2004). 

Hydrocolloids are usually based on carboxymethylcellulose (CMC), but can include other polysaccharides and proteins as well. These dressings are produced in the form of either a flexible foam or a film containing a layer of hydrocolloid in granule or paste form. Hydrocolloids were first used as treatment for oral lesions. They can adhere to moist surfaces, absorb water and form a protective gel. Coated on polyethylene sheet, they were used in gastro-intestinal surgical procedures, such as involved in ostomy appliance attachment. Without the plastic backing, they were used for treatment of ulcers. They increase granulation tissue formation, which can be overproduced if not watched, but they do not promote epithelialization (18). 

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