Patent · US Expired

Method for the determination of .alpha.-amylase

US4337310A · kind A · utility

2Cited by

5References

3Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Hans-Georg Batz · Tutzing, DE
Elli Rauscher · Munich, DE
Gunter Weimann
August W. Wahlefeld · Hohenpeißenberg, DE
Wolfgang Gruber · Bischofswerda, DE

Key dates

Filing date	Sep 8, 1980
Grant date	Jun 29, 1982
Priority date	—
Expiry date	Sep 8, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12Q1/40
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Method for determining .alpha.-amylase by incubating with a starch substrate, wherein the substrate is based upon particulate starch derivatized with detectable groups for the determination of .alpha.-amylase, the substrate consisting of superficially cross-linked starch or amylose grains having a regulated, reduced swellability, said grains having a diameter of from 0.01 to 0.20 mm; these grains are prepared by suspending non-swollen grains in a solution with only enough cross-linking agent to achieve superficial cross-linking and then derivatizing the grains with the detectable groups for the determination of .alpha.-amylase.

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