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Method of producing fructose syrup from agave plants

Patent 5846333 Issued on December 8, 1998. Estimated Expiration Date: Icon_subject 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.

Patent References

2461163

2594440

2834694

3558355

3806363

Process for the obtention of fructose and fructose-rich syrups from xerophyte plants
Patent #: 4138272
Issued on: 02/06/1979
Inventor: Zepeda-Castillo, deceased ,   et al.

Preparation of fructose
Patent #: 4277563
Issued on: 07/07/1981
Inventor: Kerkhoffs

Fructose polymer mixture
Patent #: 4285735
Issued on: 08/25/1981
Inventor: Mitchell ,   et al.

Enzymatic method for improving the injectability of polysaccharides
Patent #: 4326037
Issued on: 04/20/1982
Inventor: Griffith ,   et al.

Direct production of a pure sugar product from cane juice
Patent #: 4332622
Issued on: 06/01/1982
Inventor: Hohnerlein, Jr. ,   et al.

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Inventors

Application

No. 614349 filed on 03/12/1996

US Classes:

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

Examiners

Primary: Wu, David W.

Attorney, Agent or Firm

Foreign Patent References

  • 2097796 GB. 10/06/1982

International Class

C13K 011/00

Abstract

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
  • Dianon.RTM. SK1B and SK110--Gel Type--Strong Acid Cation Exchange Resin--Hydrogen Cycle--Hydrochloric Acid Regeneration, Dianex Sytems, Lockport, NY (at least as early as Jan. 5, 1996)
  • Fructozyme™, .COPYRGT.Nova Nordick, Oct. 1993, Bioindustrial Group, Novo Nordisk AVS, Denmar
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