L-aminoacid oxidase from yeasts of the genus cryptococcus, their preparation and use

US4783404A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Werner Aretz · Königstein, DE
• Klaus Sauber · Schwalbach, DE

Key dates

• Filing date: Sep 14, 1984
• Grant date: Nov 8, 1988
• Expiry date: Sep 14, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/911
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Yeasts of the genus cryptococcus, preferably of the species C. Laurentii, form, in the presence of aminoacids, an L-aminoacid oxidase which stereospecifically converts L-aminoacids and their derivatives into the corresponding .alpha.-ketoacids. The immobilized cells are advantageously used for this conversion, which can also be used to resolve racemates.