EP 1041161 B1 20040519 - Process for preparing an alpha crystalline anhydrous dextrose of high purity
Title (en)
Process for preparing an alpha crystalline anhydrous dextrose of high purity
Title (de)
Vefahren zur Herstellung von hochreiner alphakristalliner wasserfreier Dextrose
Title (fr)
Procédé de préparation d'un dextrose cristallin alpha anhydre de haute pureté
Publication
Application
Priority
FR 9904178 A 19990402
Abstract (en)
[origin: EP1041161A1] Anhydrous crystalline alpha -dextrose (I) is prepared by preparing a starch hydrolyzate; subjecting the product to nanofiltration on a membrane, to give a syrup of high glucose content as permeate; concentrating the syrup to solids and crystallizing by evaporation to give (I) crystals. Preparation of anhydrous crystalline alpha -dextrose (I) involves: (a) preparing a starch hydrolyzate; (b) subjecting the product to nanofiltration on a membrane, to give a syrup of high glucose content as permeate; (c) concentrating the syrup to a solids content of at least 70 wt. % glucose at 50-110 degrees C; (d) crystallizing by evaporation and stirring to give a crystalline mass containing at least 30 wt. % crystals; and (e) separating, recovering and drying the obtained (I) crystals.
IPC 1-7
IPC 8 full level
C13B 20/16 (2011.01); C13K 1/08 (2006.01); C13K 1/10 (2006.01)
CPC (source: EP US)
C13B 20/165 (2013.01 - EP US); C13K 1/08 (2013.01 - EP US); C13K 1/10 (2013.01 - EP US); Y10S 977/902 (2013.01 - EP US); Y10S 977/92 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1041161 A1 20001004; EP 1041161 B1 20040519; AT E267268 T1 20040615; DE 60010787 D1 20040624; DE 60010787 T2 20050714; ES 2220355 T3 20041216; FR 2791703 A1 20001006; FR 2791703 B1 20010615; US 6184003 B1 20010206
DOCDB simple family (application)
EP 00400882 A 20000330; AT 00400882 T 20000330; DE 60010787 T 20000330; ES 00400882 T 20000330; FR 9904178 A 19990402; US 32852299 A 19990609