C - Chemistry – Metallurgy – 13 – K
Patent
C - Chemistry, Metallurgy
13
K
260/233.4
C13K 11/00 (2006.01) C07H 3/02 (2006.01) C07H 9/04 (2006.01)
Patent
CA 1194867
ALKYLIDENATION OF FRUCTOSE WITH PERFLUORINATED ACID CATALYSTS ABSTRACT OF THE DISCLOSURE Aqueous fructose and aldehydes, ketones and/or acetals may be effectively catalyzed into alkylidene fructose derivatives with immobilized acid catalysts. The reaction provides a means for enriching the fructose content of conventional high fructose co m syrups. Per- fluorinated acid resins are especially effective catalysts for converting aqueous fructose and acetone solutions into diacetone fructose. Catalysis with the perfluorinated acid resins may be conducted at significantly lower conversion temperates with superior reactant and reaction product exchange rates. Enrichment of high fructose corn, syrups may be generally accomplished by catalyzing the fructose and acetone into a diacetone fructose solution with the perfluorinated acid resin, allowing the dextrose to precipitate from the diacetone solution, hydrolyzing the diacetone fructose to fructose and recovery of the enriched fructose product there- from. The water-insoluble catalysts afford a reusable catalyst system which can be easily separated from the processed products. The per- fluorinated acid resins produce a high quality, food-grade syrup products essentially free of ash, organoleptic bodies (e.g. flavoring, coloring, etc.) and other objectionable by-product contaminants.
429285
Niekamp Carl W.
Seidman Martin
Osler Hoskin & Harcourt Llp
Staley (a.e.) Manufacturing Company
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