Abstract
Abstract Several fungal species namely: Aspergillus niger , Aspergillus parasiticus , Penicillium funiculosum , Trigonopsis variabilis and two different strains of Fusarium oxysporum were tested toward racemic mixtures of following phosphonic acids: 1-amino-2-methylpropanephosphonic acid, 1-aminophenylmethanephosphonic acid and 1-amino-2-phenylethanephosphonic acid. Application of F. oxysporum strain (UW1) allowed obtaining optically pure S -isomer of 1-aminophenylmethanephosphonic acid and R -isomer of 1-amino-2-phenylethanephosphonic acid, whereas biotransformation of racemic mixture of 1-amino-2-methylpropanephosphonic acid with F. oxysporum strain (DSM 12646) cells resulted in obtaining pure enantiomer of R -configuration.
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