Title:
PRODUCTION OF BRANCHED CYCLODEXTRIN
Document Type and Number:
Japanese Patent JP2558074
Kind Code:
B2
Abstract:
PURPOSE: To produce a less colored branched dextrin in high conversion by an economical simple purification process using no expensive chemicals by reacting cyclodextrin with a glycosyl donor in a solvent.
CONSTITUTION: Cyclodextrin or a cyclodextrin derivative is reacted with a glycosyl donor in a molar ratio of 1:1 to 1:20 in the presence of a catalyst in a solvent. The dextrin used is α-, β-, or γ-cyclodextrin and is reacted with glucose, mannose, galactose, or the like. The solvent used is the most desirably dimethyl formamide, and the catalyst used is an acidic ion exchanger. The reaction is carried out at 70-150°C for 2-8 hr to give a product most of which is a low-substitution, namely, glycoside-bonded one.
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Inventors:
RORUFU HIRUZENKORUN
PETORA GURAUFUOOGURU
JIRUKE SHAIDEINGU
PETORA GURAUFUOOGURU
JIRUKE SHAIDEINGU
Application Number:
JP17425294A
Publication Date:
November 27, 1996
Filing Date:
July 26, 1994
Export Citation:
Assignee:
KONZORUTEIUMU FUYUURU EREKUTOROHIEEMITSUSHE IND GMBH
International Classes:
C08B37/16; (IPC1-7): C08B37/16
Other References:
【文献】 CA 115:282425,1991
Attorney, Agent or Firm:
Toshio Yano (2 outside)