摘要:
The problem addressed by the invention is solved in a first aspect by a method for producing alanine or a compound produced using alanine, having the steps of (a) providing a cell which expresses a recombinant alanine dehydrogenase or a variant thereof, (b) cultivating the cell under aerobic conditions in the presence of an inorganic nitrogen source in an aqueous phase, and (c) bringing the cell into contact with an organic phase, said cell being a prokaryotic or a lower eukaryotic cell.
摘要:
A process for the racemization of an optically active alpha-hydroxyketone by incubating said alpha-hydroxyketone in the presence of an acetoin racemase of Lactobacillus.
摘要:
A method for racemizing optically active secondary alcohols by incubating these alcohols with at least one alcohol dehydrogenase of the E.C. 1.1.1. class.
摘要:
A process for the racemisation of an optically active alpha-hydroxyketone by incubating said alpha-hydroxyketone in the presence of an acetoin racemase of Lactobacillus.
摘要:
The invention relates to biocatalysts showing alcohol dehydrogenase activity obtainable from Rhodococcus ruber, their preparation, their use in the oxidation of secondary alcohols and/or the reduction of ketones, as well as nucleic acids coding for these alcohol dehydrogenases and microorganisms transformed with nucleic acids coding for these biocatalysts and their use for producing the biocatalyst or oxidizing secondary alcohols and/or reducing ketones.
摘要:
A method including the steps a) providing a primary alcohol of the formula HO—(CH2)x—R1, where R1 is —OH, —SH, —NH2 or —COOR2; x is at least 3; and R2 is H, alkyl or aryl, b) oxidizing the primary alcohol by contacting it with an NAD(P)+-dependent alcohol dehydrogenase, and c) contacting the oxidation product of step a) with a transaminase, where the NAD(P)+-alcohol dehydrogenase and/or the transaminase is a recombinant or isolated enzyme. A whole cell catalyst for carrying out the method. The use of such a whole cell catalyst for oxidizing a primary alcohol.
摘要:
The present invention relates to a method comprising the steps a) providing a secondary alcohol, b) oxidizing the secondary alcohol by contacting it with an NAD(P)+-dependent alcohol dehydrogenase and c) contacting the oxidation product of step a) with a transaminase, wherein the NAD(P)+-dependent alcohol dehydrogenase and/or the transaminase is a recombinant or isolated enzyme, to a whole cell catalyst for carrying out the method, and to the use of such a whole cell catalyst for oxidizing a secondary alcohol.
摘要:
The present invention relates to a method comprising the steps a) providing a primary alcohol of the formula HO—(CH2)x—R1, wherein R1 is selected from the group consisting of —OH, —SH, —NH2 and —COOR2, x is at least 3 and R2 is selected from the group consisting of H, alkyl and aryl, b) oxidizing the primary alcohol by contacting it with an NAD(P)+-dependent alcohol dehydrogenase, and c) contacting the oxidation product of step a) with a transaminase, wherein the NAD(P)+-alcohol dehydrogenase and/or the transaminase is a recombinant or isolated enzyme, to a whole cell catalyst for carrying out the method, and to the use of such a whole cell catalyst for oxidizing a primary alcohol.
摘要:
A method for racemizing optically active secondary alcohols by incubating these alcohols with at least one alcohol dehydrogenase of the E.C. 1.1.1. class.
摘要:
The invention relates to an enzyme that comprises or includes a sequence according to SEQ. ID No. 1 or SEQ. ID No. 2, to a method for the production thereof, and to the use thereof as a catalyst in the oxidative cleavage of vinyl aromatics.
摘要翻译:本发明涉及一种酶,其包含或包含根据SEQ ID NO: ID号1或SEQ。 ID No.2,其制备方法及其在乙烯基芳族化合物的氧化裂解中作为催化剂的用途。