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Catalysts 2018, 8(1), 28; doi:10.3390/catal8010028

Microbial Kinetic Resolution of Aroma Compounds Using Solid-State Fermentation

Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland
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Received: 14 December 2017 / Revised: 12 January 2018 / Accepted: 13 January 2018 / Published: 16 January 2018
(This article belongs to the Special Issue Enzyme-Mediated Stereoselective Synthesis)
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Abstract

A novel microbial approach to the production of enantiomerically enriched and pure aroma compounds based on kinetic resolution via solid-state fermentation is proposed. Twenty-five filamentous fungi were screened for lipase activity and enantioselective hydrolysis of a volatile racemic ester (1-phenylethyl acetate (1)) and several racemic lactones (trans and cis whisky lactones (4, 5), γ-decalactone (7), δ-decalactone (8), (cis-3a,4,7,7a-tetrahydro-1(3H)-isobenzofuranone) (9)). Solid-state fermentation was conducted with linseed and rapeseed cakes. Kinetic resolution afforded enantiomerically enriched products with high enantiomeric excesses (ee = 82–99%). The results highlight the potential economic value of solid-state fermentation using agroindustrial side-stream feedstocks as an alternative to more expensive processes conducted in submerged fermentation. View Full-Text
Keywords: aroma compounds; kinetic resolution; solid-state fermentation; agro-industrial side stream; rapeseed cake; linseed cake; lactones; esters aroma compounds; kinetic resolution; solid-state fermentation; agro-industrial side stream; rapeseed cake; linseed cake; lactones; esters
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Boratyński, F.; Szczepańska, E.; Grudniewska, A.; Olejniczak, T. Microbial Kinetic Resolution of Aroma Compounds Using Solid-State Fermentation. Catalysts 2018, 8, 28.

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