Patent · US Expired

Method for the preparation of multiple glucosyl branched-cyclodextrins

US4931389A · kind A · utility

11Cited by
1References
3Claims
0Family size

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Key dates

Filing dateAug 25, 1988
Grant dateJun 5, 1990
Priority date
Expiry dateAug 25, 2008

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12P19/16
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

In a method for preparing multiple glucosyl branched-cyclodextrins, a debranching enzyme is contacted to a mixture of maltose or a substance containing maltooligosaccharide such as maltose with a cyclodextrin to obtain a reaction product from which a branched-cyclodextrin is then separated; said branched-cyclodextrin is converted to glycosyl-cyclodextrin under the action of glucoamylase, which is thereafter mixed with maltose or a substance containing maltooligosaccharide such as maltose; and the resulting mixture is successively acted on by a debranching enzyme and glucoamylase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.