Pseudomonas aeruginosa and its use in a process for the biotechnological preparation of L-rhamnose

US5658793A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Carlo Giani · Frankfurt am Main, DE
• Dieter Wullbrandt · Hofheim, DE
• Reinhardt Rothert · Niedernhausen, DE
• Johannes Meiwes · Idstein, DE

Key dates

• Filing date: Jun 5, 1995
• Grant date: Aug 19, 1997
• Expiry date: Jun 5, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12R2001/385
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Bacterial strains are capable of the formation of rhamnolipids, which they generate in the culture solution. If bacteria of the type Pseudomonas aeruginosa are employed for the fermentation, these microorganisms synthesize rhamnolipids in a concentration of 70-120 g/l of culture solution. The L-rhamnose can be recovered directly from the culture solution by hydrolysis of the rhamnolipids, i.e. without a complicated separation of the cell material and without isolation of the rhamnolipids before hydrolysis.