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AssigneeDanisco Finland Oy
InventorsPankaj Shashikant Shah, Stuart Andrew Shaw Craig, Christina Sue Morrill, Michael Torrey Wuesthoff
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Superior quality, clean-tasting food grade polydextrose is prepared by reacting glucose or glucose-containing materials such as hydrolyzed starch with a polyol such as sorbitol in the presence of low levels of a polycarboxylic acid such as citric acid. In one embodiment, polydextrose is prepared by reacting glucose or glucose-containing materials such as hydrolyzed starch with a polyol such as sorbitol in the presence of low levels, i.e., from about 0.03% to about 0.1% citric acid at a temperature of from about 145 to about 185 C., preferably from about 150 C. to about 160 C. Because of the low levels of catalyst used in preferred embodiments, minimal or no off-flavors and little color are formed during the course of the reaction, but the product may be purified using ion exchange, membrane filtration, or carbon treatment, or further modified by hydrogenation if desired for certain applications.
A process for preparing an edible polysaccharide comprising reacting a saccharide selected from the group consisting of glucose, other simple sugars, hydrolyzed starch, and mixtures thereof, with 5 to 20 weight % of a polyol selected from the group consisting of sortibol, glycerol, erythritol, xylitol, mannitol, galactitol, and mixtures thereof, under anhydrous melt polymerization conditions at a reduced pressure, in the presence of from 0.001 to 0.3 weight % of an acid or anhydride selected from the group consisting of citric acid, maleic acid, malic acid, glutaric acid, fumaric acid, tartaric acid, succinic acid, adipic acid, itaconic acid, terephthalic acid, maleic acid anhydride, succinic acid anhydride, adipic acid anhydride, itaconic acid anhydride, and mixtures thereof.
Dependencies are inferred from the claim text.