Regio- and stereoselective fungal oxyfunctionalisation of limonenes

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Kaspera, R.; Krings, U.; Pescheck, M.; Sell, D.; Schrader, J. et al.: Regio- and stereoselective fungal oxyfunctionalisation of limonenes. In: Zeitschrift für Naturforschung - Section C Journal of Biosciences 60 (2005), Nr. 5-6, S. 459-466. DOI: https://doi.org/10.1515/znc-2005-5-615

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Sum total of downloads: 35




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Abstract: 
Selective transformations of limonene by asco- and basidiomycetes were investigated. On the shake flask scale, Penicillium citrinum hydrated R-(+)-limonene to α-terpineol [83% regioselectivity (rs), more than 80 mg l-1 product yield], and Gongronella butleri catalysed the terminal oxidation to yield perillyl alcohol (60% rs, 16 mg l-1). On the laboratory bioreactor scale, Penicillium digitatum produced a peak concentration of 506 mg α-terpineol l-1 in the fed-batch mode, equivalent to a theoretical yield of 67%, and no volatile by-products were found. Fusarium proliferatum transformed R-(+)-limonene enantiospecifically to cis-(+)-carveol (98.6% ee, more than 35 mg l-1 product yield) and S-(-)-limonene predominantly to trans-(-)-carveol (96.3% ee). Pleurotus sapidus selectively dehydrogenised the accumulating trans-(-)-carveol to the corresponding enantiopure R-(-)-carvone. The results show that a careful selection of strain and bioprocess parameters may improve both the yield and the optical purity of a desired product.
License of this version: CC BY-NC-ND 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2005
Appears in Collections:Naturwissenschaftliche Fakultät

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1 image of flag of Germany Germany 30 85.71%
2 image of flag of China China 4 11.43%
3 image of flag of Spain Spain 1 2.86%

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