Production of fructose syrup

Details Production of fructose syrup Production of fructose syrup

C - Chemistry, Metallurgy

13

K

260/232.5

C13K 11/00 (2006.01)

Patent

CA 1246556

ABSTRACT OF THE DISCLOSURE Processes are provided for the production of highly useful, sweet, fructose-containing syrups also containing fructooligosaccharides by the partial or substantially- complete hydrolysis of inulin. The process includes first providing an aqueous solution containing inulin from Jerusalem artichoke tubers or chicory roots. Then, the warm aqueous solution of inulin at a temperature of, e.g., 40°C. - 70°C., is passed through a column containing a strong acid cation- exchange resin, thereby providing an effluent having a pH of 2.0 - 3Ø The effluent is then hydrolyzed by heating at a temperature of 70°C. - 100°C., and the so-heated hydrolyzate is passed through a column containing a weak base anion- exchange resin, thereby providing an effluent having a pH of 6.5 - 7Ø Optionally, after the hydrolysis step, the hydrolyzate at a temperature of 70°C. - 100°C. is decolorized by contact with activated or granular charcoal. The effluent is then concentrated to a syrup containing less water than the effluent, e.g., one containing 40% - 70% solids. The sweet fructose syrup containing oligofructans can be used as truly "health" sweetener, particularly ideal for elderly people and diabetics. The pulp obtained after juice extraction is rich in protein and can be used as animal feed.

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