PROCESS FOR THE BIOTECHNICAL PRODUCTION OF RHAMNOLIPIDS AND RHAMNOLIPIDS WITH ONLY ONE .beta.- HYDROXYDECANE CARBOXYLIC ACID RESIDUE IN THE MOLECULE

摘要

A process for the biotechnical production of rhamnolipids with high surface activity using Pseudomonas spec. DSM 2874 in the form of growing, dormant and immobilized cell substance is described, by means of which the rhamnolipids are obtained in high yield per g dry cell substance. Also described are two new rhamnolipids with only one .beta.-hydroxydecanecarboxylic acid residue in the molecule and defined as .alpha.-L-rhamnopyranosyl and 20-.alpha.-L-rhamnopyranosyl-.alpha.-L-rhamnopyranosyl-.alpha.-hydroxyde-cane-carboxylic acid with a molecular weight of 334 and 480 respectively.