Abstract: The present invention relates to biotechnological methods for the production of saturated as well as unsaturated aldehydes, and mixtures thereof using at least one alpha-dioxygenase and at least one aldehyde dehydrogenase. The method may be carried out either fermentatively or enzymatically. Furthermore, the present invention relates to a vector system, as well as sequences and recombinant microorganisms encoding the enzymes that can be used to produce the aldehydes and mixtures according to the invention. Further, the present invention relates to compositions obtained by the methods according to the present invention.

Abstract: The invention relates to a method for producing flavone glycoside dihydrochalcones, having the following steps: (a) providing a transgenic microorganism containing (i) a first nucleic acid portion (A) containing a gene which codes for a bacterial chalcone isomerase and (ii) a second nucleic acid portion (B) containing a gene which codes for a bacterial enoate reductase, (b) adding one or more flavone glycosides to the transgenic microorganism under conditions which allow the simultaneous isomerization and reduction of the flavone glycoside into the flavone glycoside dihydrochalcone, and optionally (d) isolating and purifying the final product, wherein the nucleic acid portion (A) (1) is a nucleotide sequence according to SEQ ID NO:1, in which the nucleic acid portion (A?) according to SEQ ID NO:3 has been cut out, or (2) is an amino acid sequence according to SEQ ID NO:2, in which the amino acid portion (A?) according to SEQ ID NO:4 has been cut out.

Abstract: The invention relates to a method for producing flavone glycoside dihydrochalcones, having the following steps: (a) providing a transgenic microorganism containing (i) a first nucleic acid portion (A) containing a gene which codes for a bacterial chalcone isomerase and (ii) a second nucleic acid portion (B) containing a gene which codes for a bacterial enoate reductase, (b) adding one or more flavone glycosides to the transgenic microorganism under conditions which allow the simultaneous isomerization and reduction of the flavone glycoside into the flavone glycoside dihydrochalcone, and optionally (d) isolating and purifying the final product, wherein the nucleic acid portion (A) (1) is a nucleotide sequence according to SEQ ID NO:1, in which the nucleic acid portion (A?) according to SEQ ID NO:3 has been cut out, or (2) is an amino acid sequence according to SEQ ID NO:2, in which the amino acid portion (A?) according to SEQ ID NO:4 has been cut out.

Abstract: The present invention relates to a mutant transaminase with increased transaminase activity relative to the wild-type transaminase, a fusion protein comprising the transaminase, a polynucleotide coding for the transaminase, a host cell comprising the polynucleotide, mutant transaminase and/or fusion protein, a method of producing an amine with the mutant transaminase or fusion protein and the use of the mutant transaminase or fusion protein for the production of an amine.

Abstract: The present invention relates to a mutant transaminase with increased transaminase activity relative to the wild-type transaminase, a fusion protein comprising the transaminase, a polynucleotide coding for the transaminase, a host cell comprising the polynucleotide, mutant transaminase and/or fusion protein, a method of producing an amine with the mutant transaminase or fusion protein and the use of the mutant transaminase or fusion protein for the production of an amine.

Abstract: The invention relates to a process for chemical and/or biological transformation of at least one starting material dissolved in a liquid phase using at least one immobilized enzyme, cell fragments, and/or encapsulated whole cell microorganism trapped in a rotating flow distributor having an inlet for receiving liquid phase comprising starting material as well as immobilized enzyme(s)/encapsulated cell(s), a cavity for trapping said immobilized enzyme(s), cell fragment(s), and/or encapsulated whole cell microorganism(s), and outlet openings on the rotating periphery of the flow distributor.

Abstract: A method for production of a dihydrochalcone, especially of phloretin, using a transgenic microorganism, containing a nucleic acid section (a), comprising or consisting of a gene coding for a bacterial chalcone isomerase, and/or a nucleic acid section (a?), comprising or consisting of a gene coding for a plant chalcone isomerase, and a nucleic acid section (b), comprising or consisting of a gene coding for a bacterial enoate reductase, corresponding transgenic microorganisms, containing a nucleic acid section (a), comprising or consisting of a gene coding for a bacterial chalcone isomerase, and/or a nucleic acid section (a?), comprising or consisting of a gene coding for a plant chalcone isomerase, and/or a nucleic acid section (b), comprising or consisting of a gene coding for a bacterial enoate reductase, and host cells, containing one or more identical or different such vectors.

Abstract: The present invention relates to a polynucleotide encoding an enzyme having carboxylesterase [E.C.3.1.1.1] activity.

Abstract: The present invention relates to the production of optically pure secondary amines, which can be used as intermediate products in a synthesis of for instance pharmaceutical products.

Abstract: The present invention relates to a newly identified lipase belonging to the Ustilaginaceae family of Basidomycetes and variants thereof. The invention also relates to polynucleotides encoding the lipase and the variants thereof. The invention further relates to procedures for producing the lipase, and variants thereof, polypeptides and polynucleotides. The invention further relates to lipase variants with an increased trans-selectivity. The invention further relates to lipase variants with a preference for long chain fatty acid esters or carboxylic acid moieties with a chain length greater than C12. The invention further relates to a method of reducing, or eliminating, trans-fatty acids from liquid oil stable enough for frying systems.

Abstract: The present invention relates to the production of optically active amines, which can be used as intermediate products in a synthesis of for instance pharmaceutical products.

Abstract: A method for production of a dihydrochalcone, especially of phloretin, using a transgenic microorganism, containing a nucleic acid section (a), comprising or consisting of a gene coding for a bacterial chalcone isomerase, and/or a nucleic acid section (a?), comprising or consisting of a gene coding for a plant chalcone isomerase, and a nucleic acid section (b), comprising or consisting of a gene coding for a bacterial enoate reductase, corresponding transgenic microorganisms, containing a nucleic acid section (a), comprising or consisting of a gene coding for a bacterial chalcone isomerase, and/or a nucleic acid section (a?), comprising or consisting of a gene coding for a plant chalcone isomerase, and/or a nucleic acid section (b), comprising or consisting of a gene coding for a bacterial enoate reductase, and host cells, containing one or more identical or different such vectors.

Abstract: The present invention relates to processes for the screening, preparation and characterization of (R)-selective ?-transaminases, to transaminases obtained thereby and their uses in various transamination processes.

Abstract: The invention relates to novel mutants of ?PLE, to vehicles containing the same and to their use in the production of enantiomer-enriched alcohols, carboxylic acids and esters.

Abstract: The present invention relates to a newly identified lipase belonging to the Ustilaginaceae family of Basidomycetes and variants thereof. The invention also relates to polynucleotides encoding the lipase and the variants thereof. The invention further relates to procedures for producing the lipase, and variants thereof, polypeptides and polynucleotides. The invention further relates to lipase variants with an increased trans-selectivity. The invention further relates to lipase variants with a preference for long chain fatty acid esters or carboxylic acid moieties with a chain length greater than C12. The invention further relates to a method of reducing, or eliminating, trans-fatty acids from liquid oil stable enough for frying systems.

Abstract: The present invention relates to processes for the screening, preparation and characterization of (R)-selective ?-transaminases, to transaminases obtained thereby and their uses in various transamination processes.

Abstract: The present invention relates to a microorganism which comprises at least one copy of a polynucleic acid sequence which is foreign to the host and which encodes a protein having an enzymic activity, and comprises a chaperone system which assists the expression of the protein in the form of an active enzyme, and to a method for producing a protein having esterase activity using such a microorganism.

Abstract: The invention relates to novel mutants of ?PLE, to vehicles containing the same and to their use in the production of enantiomer-enriched alcohols, carboxylic acids and esters.

Abstract: The present invention relates to a microorganism which comprises at least one copy of a polynucleic acid sequence which is foreign to the host and which encodes a protein having an enzymic activity, and comprises a chaperone system which assists the expression of the protein in the form of an active enzyme, and to a method for producing a protein having esterase activity using such a microorganism.

Abstract: The present invention relates to the production of optically active amines, which can be used as intermediate products in a synthesis of for instance pharmaceutical products.