Method for the preparation of polysaccharide derivatives

C - Chemistry – Metallurgy – 07 – H

Patent

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C07H 13/04 (2006.01) A21D 2/18 (2006.01) A23L 1/307 (2006.01) A23L 1/308 (2006.01) C08B 37/00 (2006.01)

Patent

CA 2139920

The invention relates to a method for the preparation of poly- saccharide derivatives by reaction of at least a saccharide, such as glucose, maltose or glucose syrup, a "food grade" polycarboxylic acid, such as citric acid, or inorganic acid, such as phosphoric acid, which also acts as catalyst, and optionally a polyol, such as sorbitol, under the influence of electromagnetic waves to give a reaction product at a temperature of 140-300 °C. Preferably, the envisaged reaction is carried out in a commercially available micro- wave oven having a wave frequency in the range of 900-2500 MHz. The products obtained can be incorporated as low-calorie "bulking agents" in diet foods, such as dessert, cake and the like.

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