Patent · US Expired

Spherical particles containing microorganism cells having enzyme activity

US6465227B1 · kind B1 · utility

0Cited by

6References

4Claims

0Family size

Assignee

Biochemie Gesellschaft m.b.H · AT

Inventors

Arno Reichert · Innsbruck, AT
Waander Riethorst · Brixlegg, AT
Franz Knauseder · Wals, AT
Norbert Palma · Brixlegg, AT

Key dates

Filing date	Apr 3, 2000
Grant date	Oct 15, 2002
Priority date	—
Expiry date	Apr 3, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12P35/00
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process is presented for producing spherical particles containing microorganism cells having desired enzyme activity. The process comprises the steps of mixing the cells directly with a primary or secondary amine-containing polymer, combining the resulting mixture with an organic solvent to form a two-phase system, and then adding a bifunctional cross-linking agent to yield the spherical particles. The preferred enzyme activities are D-amino acid oxidase and glutarylacylase activities.

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