CMC is white and flowing fine powder. It is tasteless, smelless, mould-proof, non-toxic, non-flammable and easily dissolved in water to become transparent viscose solution.
CMC solution has good properties of thickening, adhering, emulsifying, and stabilizing. Membrane forming, moisture-holding, shape-holding, dispersing and anti-enzyme. The solution of CMC can be mixed with dissolvable animal glues, glycerin, sorbitol, Arabic gum, pectin, xanthan gum and dissolvable starch.
1) With instant products, Food Grade CMC is used to provide the required rapid build-up of viscosity, for example in powdered beverages.
The viscosity produced by Food Grade CMC contributes to the stabilisation of frozen products such as ice cream, water ices and ripples. Benefits include the conservation of texture and inhibition of ice crystal formation, a slow meltdown and an improved resistance to dripping and better heat shock resistance.
2) The thickening effects of Food Grade CMC can be used in products such as salad dressings and tomato sauces. Food Grade CMC properties that make it suitable for these applications include its rapid solubility in both hot and cold water, its good water binding and good tolerance to low pH levels.
3) For soft drinks, Food Grade CMC provides body or mouth feel to low calorie drinks sweetened with intense sweeteners, to more closely match the mouth feel obtained with sucrose or glucose syrup, and to inhibit 'neck ringing' by flavour oils in beverages.
4) Bakery products also benefit from incorporation of Food Grade CMC. In cake mixes and batter mixes, Food Grade CMC can improve the volume yield as a result of its viscosity drop during baking and improve the suspension and distribution of ingredients such as fruit. Food Grade CMC can also provide improved yields and improved moistness after storage, and be used to increase yield or retard staling and hence prolong shelf life.
Typically the dosage level of Food Grade CMC used in food products is 0.1 – 0.3% w/w. It is normal to fix the dosage and change the grade of CMC used to get the target viscosity required.