Fermentive production of 1,3-propanediol

US5254467A · kind A · utility

Assignees

• Henkel Kommanditgesellschaft auf Aktien · DE
• Gesellschaft fur Biotechnologische Forschung mbH (GBF) · DE

Inventors

• Josef Kretschmann · Langenfeld, DE
• Franz-Josef Carduck · Haan, DE
• Wolf-Dieter Deckwer · Braunschweig, DE
• Carmen Tag · Braunschweig, DE
• Hanno Biebl · Wolfenbüttel, DE

Key dates

• Filing date: Apr 25, 1991
• Grant date: Oct 19, 1993
• Expiry date: Apr 25, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/842
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A process for the transformation of glycerol into 1,3-propanediol by microorganisms comprising fermenting the microorganisms in media having a glycerol content of from about 5% to about 20% by weight under standard anaerobic fermentation conditions and recovering the 1,3-propanediol. The microorganisms according to the invention do not suffer catabolic repression by the large amount of 1,3-propanediol produced by the process.