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(11)    Patent No :    AP 2020   
(21)    Application No :    AP/P/2006/003546   
(22)    Filing Date :    22.09.2004   
(24)    Date of Grant &    03.08.2009   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
US    10/670,094    24.09.2003
(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW
 

(73) Applicant(s)

DUPONT NUTRITION BIOSCIENCES APS, Langebrogade 1,

P.O. Box 17, DK-1001 Copenhagen K,
Denmark

(72) Inventors

JUMPPANEN Juho, United Kingdom

RAVANKO Vili, Finland

HEIKKILÄ Heikki, Finland

et al

(74) Representative

ANJARWALLA & KHANNA ADVOCATES

KENYA
 

(51)  International  Classification   C13D3/14 (2006.01)    C13K13/00 (2006.01)



(54)    Title

Separation of sugars

(57)    Abstract

The invention relates to the recovery of deoxy sugars, such as fucose from biomass-derived solutions, such as spent liquors obtained from pulping processes. The invention also relates to the recovery of glycosides from biomass. The invention is based on the use of chromatographic fractionation with specific column packing materials and combinations thereof using water as the eluent. The deoxy sugar product obtained from the chromalographic fractionation may be further purified by crystallization. The invention also provides a novel crystalline L-fucose product and a novel process for the crystallization of fucose.

(56)    Documents Cited : Database WPI WK 199916, Derwent Publ. Ltd.,London, GB Class D17, AN 1999-186299 & JP 11

035591 A   US 3 240 775 A   WO 02 27039 A

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