
The reduction of aromatic ketones (acetophenone, p -chloroacetophenone, p -methoxyacetophenone) by yeasts was searched. It has been shown that under aerobic conditions at 30 oC in 0.1 M phosphate buffer (pH 7) in presence of exogenic reducing agent (isopropanol) yeasts cells enantioselectively transforms acetophenone and p -chloroacetophenone producing ( S )-phenyl-ethanol (99% ee ) and ( S )-1-(4-chlorophenyl)-ethanol (97% ee ) respectively after 48 hours of transformation. The searched biocatalyst didn’t show any reducing activity with p -methoxy-acetophenone as substrate.
Исследован процесс восстановления ароматических кетонов (ацетофенона, п -хлорацетофенона, п -метоксиацетофенона) с помощью дрожжей. Показано, что в аэробных условиях при 30 оС в 0.1 М фосфатном буфере (рН 7) в присутствии экзогенного восстановителя (изопропанола) клетки дрожжей трансформируют ацетофенон и п -хлорацетофенон энантиоселективно с образованием ( S )-1-фенилэтанола (99% ее ) и ( S )-1-(4-хлорфенил)этанола (97% ее ) в течение 48 ч. При использовании п -метоксиацетофенона в качестве субстрата исследуемый биокатализатор не проявлял восстанавливающей активности.
АЦЕТОФЕНОН, БИОВОССТАНОВЛЕНИЕ КЕТОНОВ, ЭНАНТИОСЕЛЕКТИВНЫЙ БИОКАТАЛИЗ, П-ХЛОРАЦЕТОФЕНОН, (S)-1-ФЕНИЛЭТАНОЛ, (S)-1-(4-ХЛОРФЕНИЛ)ЭТАНОЛ, (S)-1-PHENYLETHANOL, (S)-1-(4-CHLOROPHENYL)ETHANOL
АЦЕТОФЕНОН, БИОВОССТАНОВЛЕНИЕ КЕТОНОВ, ЭНАНТИОСЕЛЕКТИВНЫЙ БИОКАТАЛИЗ, П-ХЛОРАЦЕТОФЕНОН, (S)-1-ФЕНИЛЭТАНОЛ, (S)-1-(4-ХЛОРФЕНИЛ)ЭТАНОЛ, (S)-1-PHENYLETHANOL, (S)-1-(4-CHLOROPHENYL)ETHANOL
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