Diacetone fructose hydrolysis with water-insoluble catalysts

Details Diacetone fructose hydrolysis with water-insoluble catalysts Diacetone fructose hydrolysis with water-insoluble catalysts

1982-11-29

1984-08-14

Schor, Kenneth M.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 462, 536 41, 536 186, 536124, 536127, C13D 100, C13K 1100

Patent

active

044655215

ABSTRACT:
Diacetone fructose solutions may be effectively hydrolyzed to fructose by acid exchange resins. Hydrolysis of diacetone fructose with acid exchange resins substantially reduces the formation of objectionable flavoring, coloring and other hydrolyzate by-products. The immobilized acid catalysis provides a fructose product substantially free from ash residues and significantly reduces the carbon, cation and anion exchange requirements for the manufacture of enriched, food-grade fructose syrups. Perfluorinated acid exchange resins have been found to be particularly effective for hydrolyzing aqueous diacetone fructose solutions into fructose.

REFERENCES:
patent: 2715121 (1955-08-01), Glen et al.
patent: 2813810 (1957-11-01), Smith et al.
patent: 2857374 (1958-10-01), Baird
patent: 3607862 (1971-09-01), Jaffe et al.
patent: 3622560 (1971-11-01), Hindley et al.
Studies of Glycosides and Isopropylidene Derivatives--K. Erne Acta Chemica Scandinavica 9, 1955, pp. 893-901.
Acid-Catalyzed Hydrolysis of Isopropylidene Acetals of Some 2-Pentuloses and 2-Hexuloses--Tipson et al.--Carbohydrate Research 10, 1969, pp. 181-183.

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