Method of producing fructose syrup from agave plants
Patent 5846333 Issued on December 8, 1998. Estimated Expiration Date: March 12, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
127/37, Cellulose material127/42, Sugar manufacture and refining127/43, Extracting from solid material127/46.2, Involving ion manipulation, e.g., ion exchange, etc.127/48, Chemical precipitation of impurities127/55Filtering or sorption
A pulp of milled agave plant heads are liquified during centrifugation and a polyfructose solution is removed and then concentrated to produce a polyfructose concentrate. Small particulates are removed by centrifugation and/or filtration and colloids are removed using termic coagulation techniques to produce a partially purified polyfructose extract substantially free of suspended solids. The polyfructose extract is treated with activated charcoal and cationic and anionic resins to produce a demineralized, partially hydrolyzed polyfructose extract. This partially hydrolyzed polyfructose extract is then hydrolyzed with inulin enzymes to produce a hydrolyzed fructose extract. Concentration of the fructose extract yields a fructose syrup.
Other References
Zuniga, P.V., Mendez, C.M., Cham, L.G., Hernandez, R. L., and Paggy, T. Hidrolisis de Polifructosanas de Extractos de Agave Azul usando Levaduras no Viables Inmovilizadas. Avances en Ingenieria Quimica, 1988, pp. 45-53. See translation of this article entitled "Hydrolysis of Polyfructosans of Blue Agave Extracts using Immobilized Non-Viable Yeasts."
Mitsubishi Kasei Corporation, Diaion.RTM. RA-308--Porous Type I Second Generation--Highly Basic Anion Exchange Resin, Rev. #1, Jul., 1989
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