Patent · US Expired

Process for preparing cyclooctaamylose

US4822874A · kind A · utility

5Cited by

1References

9Claims

0Family size

Assignee

Consortium für elektrochemische Industrie GmbH · DE

Inventors

Gerhard Schmid · Mindelheim, DE
Hans-Jurgen Eberle · Munich, DE

Key dates

Filing date	Apr 19, 1988
Grant date	Apr 18, 1989
Priority date	—
Expiry date	Apr 19, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12P19/18
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process for preparing cyclooctaamylose by enzymatic cleavage of an aqueous preparation of starch in the presence of a complexing agent is disclosed. As a selective complexing agent for cyclooctaamylose, a compound of the formula I is employed. ##STR1## in which A, B, D and E, independently of one another, represent ##STR2## (R=hydrogen, alkyl, hydroxyl, alkoxy or carboxyl radical), and m, n, o and p are within the limits 0 to 20, with the proviso that the number of atoms forming the ring is within the limits from 13 to 24. The compounds prepared by the process of the invention are useful in the medicaments sector, in crop protection and cosmetics, or in the foodstuffs industry.

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