EP 1718755 A1 20061108 - METHOD FOR THE PRODUCTION OF HYPERBRANCHED POLYSACCHARIDE FRACTIONS
Title (en)
METHOD FOR THE PRODUCTION OF HYPERBRANCHED POLYSACCHARIDE FRACTIONS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON HYPERVERZWEIGTEN POLYSACCHARID-FRAKTIONEN
Title (fr)
PROCEDE DE PRODUCTION DE FRACTIONS POLYSACCHARIDE HYPER-RAMIFIEES
Publication
Application
Priority
- EP 2005002057 W 20050226
- DE 102004009783 A 20040228
Abstract (en)
[origin: CA2556114A1] The invention relates to a method for producing hyperbranched amylopectin having a mean molecular weight ranging between 2,000 and 29,000 Dalton and a n average degree of branching of more than 10 percent and less than 20 percent , said degree of branching being expressed in mole percent of the anhydrogluco se units carrying branching points. According to the inventive method, the molecular weight of plant amylopectins or starch rich in amylopectin is reduced to molecular weights not exceeding 60,000 Dalton by means of a-amyla se or acid hydrolysis in a first hydrolysis step, and the molecular weight of t he reduced product obtained in the first hydrolysis step is further reduced by means of .szlig.-amylase reduction in a second hydrolysis step. The inventio n further relates to the production of coupling products of the hyperbranched amylopectin with a pharmaceutical agent.
IPC 8 full level
C12P 19/22 (2006.01); A61K 31/718 (2006.01); A61K 47/48 (2006.01); C08B 30/12 (2006.01); C08B 30/18 (2006.01); C08B 30/20 (2006.01); C08B 35/00 (2006.01); C08B 35/08 (2006.01); C12P 19/14 (2006.01)
CPC (source: EP KR US)
A61K 31/718 (2013.01 - EP US); C08B 30/12 (2013.01 - EP US); C08B 30/18 (2013.01 - EP US); C08B 30/20 (2013.01 - EP KR US); C08B 35/00 (2013.01 - EP KR US); C08B 35/08 (2013.01 - EP US); C12P 19/14 (2013.01 - EP US); C12P 19/22 (2013.01 - EP US)
Citation (search report)
See references of WO 2005083103A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102004009783 A1 20050915; AU 2005217091 A1 20050909; CA 2556114 A1 20050909; CN 101137756 A 20080305; EP 1718755 A1 20061108; JP 2007523655 A 20070823; KR 20060132704 A 20061221; RU 2006134340 A 20080410; US 2007202577 A1 20070830; WO 2005083103 A1 20050909
DOCDB simple family (application)
DE 102004009783 A 20040228; AU 2005217091 A 20050226; CA 2556114 A 20050226; CN 200580006279 A 20050226; EP 05707646 A 20050226; EP 2005002057 W 20050226; JP 2007500176 A 20050226; KR 20067017021 A 20060824; RU 2006134340 A 20050226; US 59067605 A 20050226