Süd-Chemie Ip Gmbh & Co Kg

Clariant Produkte (deutschland) Gmbh

Dupont Nutrition Biosciences Aps

Ulrich Kettling

Andrei Miasnikov

Oliver Kensch

Andre Koltermann

Markus Rarbach

Isabel Unterstrasser

Andreas Kohl

Michael Zavrel

Christoph Reisinger

Thomas Brück

Zdravko Dragovic

Jochen Gerlach

Volker Sieber

Gudmundur Oli Hreggvidsson

Christian Ott

Olafur H Fridjonsson

Klaus Pellengahr

Sandra Hofmann

Lutz Röcher

Jörg Claren

Jan Carsten Pieck

Dominik Schlosser

Achim Koch

Christoph Kröhnke

Michael Kraus

The invention relates to a method for obtaining ethanol from a carbohydrate-containing raw substrate wherein the ethanol that is produced is separated during fermentation using a carrier gas. The invention further relates to the adsorption of the ethanol from the gas phase to an adsorber, the desorption of the ethanol during a subsequent process step, and to the further concentration of the ethanol.

Method for obtaining ethanol during fermentation

The invention discloses cellulase enzymes with optimized properties for processing of cellulose- and lignocellulose-containing substrates. In particular, cellobiohydrolase enzymes with preferred characteristics are disclosed. The present invention provides fusion, insertion, deletion and/or substitution variants of such enzymes. Enzyme variants have enhanced thermostability, proteolytic stability, specific activity and/or stability at extreme pH. Nucleic acid molecules encoding said enzymes, a composition comprising said enzymes, a method for preparation, and the use for cellulose processing and/or for the production of biofuels are disclosed.

Optimized cellulase enzymes

The invention describes a method for enriching at least one component from a gaseous mixture of substances, comprising the steps of (i) contacting a flow of a first gaseous mixture of substances which contains at least one component to be enriched, with a composite material at a first pressure p1 such that the at least one component to be enriched is adsorbed to the composite material and a charged composite material is obtained, said composite material comprising (a) a porous matrix of a fluorine-containing polymer having a percentage of tetrafluoroethylene monomer units of at least 95 mol % based on the total number of monomer units and (b) zeolite particles which are embedded in the matrix and around which matrix filaments extend; (ii) disrupting the flow of the gaseous mixture of substances and (iii) desorbing the at least one component to be enriched from the charged composite material by reducing the pressure to a pressure p2, with p1&#x2212;p2&#x2267;200 mbar, such that a second gaseous mixture of substances is produced and removing the second gaseous mixture of substances from the composite material.

Pressure swing adsorption method

The invention is directed to a liquefied sugar beet and/or sugar cane biomass material as well as production methods and uses thereof. The liquefied biomass is storage stable and can be used for the production of a product resulting from fermentation.

Liquefied biomass

An enzymatic process is described for the production of chemicals from carbon sources. In particular, according to one aspect, a process for the production of a target organic compound from a carbon source by a cell-free enzyme system is disclosed.

Process for cell-free production of chemicals

The present invention relates to polypeptides having xylanase activity and nucleic acid sequences encoding such polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the nucleic acid constructs as well as methods for producing and using the polypeptides. One specific application of the xylanase is the selective hydrolysis of pentose sugar components of hemicellulose-containing plant biomass. The nucleotide sequence may be used for the production of the xylanase or optimized mutants thereof.

Thermostable xylanase for the selective hydrolysis of pentose-containing polysaccharides

The invention concerns a method for the enzymatic treatment of raw polymeric feedstock comprising the following steps: (a) preferably separation of soluble components from the raw polymeric feedstock, (b) treating the raw polymeric feedstock with an enzyme system in order to liberate defined soluble monomeric or oligomeric building blocks from the insoluble raw polymeric feedstock; and (c) separating the defined monomeric or oligomeric building blocks produced in step b) from the remainder of the raw polymeric feedstock. Preferably, the enzyme system used in step b) contains not more than 50%, preferably not more than 20%, more preferably not more than 10%, more preferably not more than 5%, more preferably not more than 2%, more preferably not more than 1% of other enzyme activities apart from the enzyme activity resulting in liberation of said defined monomeric or oligomeric building blocks from the raw polymeric feedstock according to step b). Further aspects of the invention concern the use of 'less pure' and thus less costly enzyme systems in subsequent enzymatic treatment steps and methods for determining the optimum sequence of enzymatic treatment steps by analysis of the raw polymeric feedstock used.

Generation of chemical building blocks from plant biomass by selective depolymerization

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Munich, Germany

Ulrich Kettling