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Food additives data book - wordpres

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Polysaccharides 706<br />

NAME: Hydroxy propyl cellulose<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: Hydroxylated and propylated beta-D-(1 Æ 4) glucan/ CAS 9004-64-2/ E463/ Cellulose<br />

2-hydroxypropyl ether/ Oxypropylated cellulose/ Propylene glycol ether of cellulose/ HPC<br />

FORMULA: Variable, depending on the degree of hydroxylation and propylation<br />

MOLECULAR MASS: Variable<br />

ALTERNATIVE FORMS: None<br />

PROPERTIES AND APPEARANCE: A white powder or fibrous flakes<br />

SOLUBILITY % AT VARIOUS Solubility varies with molecular weight and hydroxylation/propylation. Generally, commercially<br />

TEMPERATURE/pH COMBINATIONS: available hydroxy propyl celluloses have molar substitutions (MS) greater than 2. In contrast to<br />

hydroxy ethyl celluloses they are soluble not only in aqueous solution but also in a wide range of polar<br />

solvents. Hydroxy propyl celluloses are soluble in water, sucrose solutions, sodium chloride solutions,<br />

ethanol solutions and propylene glycol, but solubility in vegetable oils is limited. Also in contrast to<br />

hydroxyethyl celluloses they are insoluble in hot aqueous solutions (as are methyl celluloses).<br />

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

increasing concentration. It is essentially pH-independent (pH 4 to pH 8)<br />

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

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

methylcellulose (HEMC); carboxy methyl cellulose (CMC); proteins; gum arabic; xanthan;<br />

carrageenans; dextrans; starches; locust bean gum; guar gum; gelatin; agar; alginate (applicationdependent)

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