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Food additives data book - wordpres

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Polysaccharides 696<br />

NAME: Furcellaran<br />

CATEGORY: Polysaccharides<br />

FOOD USE: All food products/ Edible films and coatings<br />

SYNONYMS: CAS 9000-21-9/ EINECS 232-531-0/ E408/ Furcellaran/ Danish gum<br />

FORMULA: A polymer formed from a disaccharide repeating unit composed of a 4-O-sulfato-beta-Dgalactopyranosyl<br />

unit and a 3,6 anhydro-alpha-D-galactopyranosyl unit<br />

MOLECULAR MASS: Variable<br />

ALTERNATIVE FORMS: Very similar in structure to kappa-carrageenan, differing primarily in level of sulphate substitution. In<br />

kappa-carrageenan the sulphated hydroxyl unit is in theory 100% sulphated, whereas in furcellaran the<br />

hydroxyl is in theory 50% sulphated<br />

PROPERTIES AND APPEARANCE: White to yellow powder or flakes<br />

SOLUBILITY % AT VARIOUS The sodium salt of furcellaran is soluble in cold water, but potassium and calcium salts must be heated.<br />

TEMPERATURE/pH COMBINATIONS: Furcellaran will dissolve in hot concentrated sugar solutions, but is insoluble in concentrated salt<br />

solutions and 35% ethanol. It is insoluble in vegetable oils and propylene glycol.<br />

Solubility declines as the pH is reduced (

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