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Food additives data book - wordpres

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Polysaccharides 692<br />

NAME: Carboxymethylcellulose<br />

CATEGORY: Polysaccharides<br />

FOOD USE: Soups/ Syrups/ Beverages/ Dairy products/ Dressings/ Dry formulated products/ <strong>Food</strong> packaging/<br />

Edible films and coatings/ All food products<br />

SYNONYMS: Carboxymethylated beta-D-(1 Æ 4) glucan/ CAS 9004-32-4/ E466/ CMC/ Sodium CMC/ Cellulose<br />

gum/ Sodium carboxymethylcellulose<br />

FORMULA: Variable, depending on the degree of substitution<br />

MOLECULAR MASS: Variable from 21,000 to 500,000<br />

ALTERNATIVE FORMS: None<br />

PROPERTIES AND APPEARANCE: A white powder<br />

SOLUBILITY % AT VARIOUS Solubility varies with molecular weight and carboxymethylation. Generally, carboxymethylcellulose is<br />

TEMPERATURE/pH COMBINATIONS: soluble in water, sucrose solutions, sodium chloride solution and ethanol solutions, but solubility in<br />

vegetable oils and propylene glycol is limited.<br />

Solubility declines with increasing molecular weight, decreasing methylation and increasing<br />

concentration. Solubility is pH-dependent with the more insoluble acid form present below pH4<br />

FUNCTION IN FOODS: Thickening agent; stabiliser; suspending agent; bulking agent<br />

ALTERNATIVES: Methyl ethyl cellulose (MEC); hydroxy propyl methyl cellulose (HPMC); hydroxy ethyl<br />

methylcellulose (HEMC); methyl cellulose (MC); proteins; gum arabic; xanthan, carrageenans;<br />

dextrans; starches; locust bean gum; guar gum; gelatin; agar; alginate (application-dependent)<br />

TECHNOLOGY OF USE IN FOODS: Carboxymethylcellulose should be dispersed in hot water and cooled to hydrate the polysaccharide. A<br />

high shear mixer will aid dispersion, although prolonged shear of high molecular-weight polymers will<br />

reduce the viscosity.

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