Wacker Chemie Ag

Thomas Schloesser

Tobias Dassler

Anneliese Reutter-Maier

Kerstin Pfeiffer-Schwiesow

The invention relates to a method for producing L-cystine by fermenting a microorganism strain in a fermentation medium, in which method L-cystine is precipitated in an amount of at least 70% relative to the total cysteine, characterized in that the Osaturation of the fermentation medium is kept at least at 1% and at most at 40&#xb1;3% during the formation of L-cystine.

Method for producing L-cystine by fermentation under controlled oxygen saturation

A DNA construct that allows the inexpensive production of a target protein in, consisting of a nucleic acid sequence encoding a signal peptide which is operably linked with a gene coding for a carrier protein which is linked with a gene coding for the target protein via a gene coding for a cleavable sequence S, wherein the gene coding for a carrier protein is the spy gene from

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Burghausen, Germany

Thomas Schloesser