The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 06, 2001

Filed:

Jun. 09, 1999
Applicant:
Inventor:

Jean-Jacques Caboche, Drouvin le Marais, FR;

Assignee:

Roquette Freres, Lestrem, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 1/902 ; C12P 1/914 ; C12P 1/920 ; C13K 1/06 ; C13D 3/12 ;
U.S. Cl.
CPC ...
C12P 1/902 ; C12P 1/914 ; C12P 1/920 ; C13K 1/06 ; C13D 3/12 ;
Abstract

The invention relates to a process for preparing a crystalline &agr; anhydrous dextrose from a starch hydrolysate, characterized in that a starch hydrolysate is prepared, said starch hydrolysate is nanofiltered over membranes in a manner such as to obtain a nanofiltration permeate constituting a syrup with a high glucose content and a nanofiltration retentate, said syrup enriched in glucose is concentrated to a dry matter content of at least 70 wt. % of glucose and at a temperature in the range 50° C. to 110° C., said concentrated syrup is crystallized by evaporation and agitation in such a manner as to obtain a crystalline mass containing at least 30 wt. % of crystals and the crystals of &agr; anhydrous dextrose thus obtained are separated, recovered and dried.


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