The present invention relates to a method of hydrolysing bicyclic monoterpenes with an α/β-hydrolase-fold esterase being a carboxyl esterase comprising or consisting of an amino acid sequence with at least 80% identity to SEQ ID No. 1 or SEQ ID No. 4 and comprising a catalytic motif of Ser-X-X-Lys (SEQ ID No. 2), wherein X is any amino acid residue, or a catalytic motif of Ser- (Z)n-Glu- (Z)m-His (SEQ ID No. 5), wherein (Z)nand (Z) are a chain of amino acids of a length of 20 to 200 amino acids.
Enzymes are a valuable tool for upcycling side-stream from renewable sources. We have found that EstB from Burkholderia gladioli could achieve high enantiopurity in upcycling α-pinene, a side-productfrom turpentine production, whereas common lipases and esterases could not. This reaction can be easily integrated with the existing chemical synthetic route for the production of the racemic camphor with
The present invention relates to a method of hydrolysing bicyclic monoterpenes with an α/β-hydrolase-fold esterase being a carboxyl esterase comprising or consisting of an amino acid sequence with at least 80% identity to SEQ ID No. 1 or SEQ ID No. 4 and comprising a catalytic motif of Ser-X-X-Lys (SEQ ID No. 2), wherein X is any amino acid residue, or a catalytic motif of Ser- (Z)n-Glu- (Z)m-His (SEQ ID No. 5), wherein (Z)nand (Z) are a chain of amino acids of a length of 20 to 200 amino acids.