Jungbunzlauer Austria Ag

Robert Edlauer

Gerald Rafler

Jutta Rafler

Andreas Windsperger

Josef Gass

Stefan Trimmel

Josef Gaß

Method for the production of L,L-, D,D-, D,L- and meso-dilactides, comprising the polycondensation and/or polytransesterification of an L-, D- or D,L-lactic acid or of esters thereof to polyesters of higher molecular weights of the L-, D- and D,L-lactic acid (polylactic acids) and cyclizing depolymerization of the polylactic acids to dilactides, wherein the polyesters of higher molecular weights of the L-, D- and D,L-lactic acids are produced in the presence of hydrolysis-stable metal compounds as catalyst.

Method for producing cyclic diesters of L-, D- and D,L-lactic acid

The present invention relates to the use of at least one inorganic nitrate in a fermentation process for producing erythritol using a yeast strain of thespecies as an erythritol-producing microorganism characterized in that the at least one inorganic nitrate is simultaneously used as a main nitrogen source and as a pH regulator in the culture medium, as well as to such an improved method for producing erythritol.

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Growing community of inventors

Laa a.d. Thaya, Austria

Robert Edlauer