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Química Nova

Print version ISSN 0100-4042


BORGES, Keyller Bastos; BONATO, Pierina Sueli  and  PUPO, Mônica Tallarico. Enantioselective biotransformation of propranolol to the active metabolite 4-hydroxypropranolol by endophytic fungi. Quím. Nova [online]. 2011, vol.34, n.8, pp.1354-1357. ISSN 0100-4042.

The enantioselective biotransformation of propranolol (Prop) by the endophytic fungi Phomopsis sp., Glomerella cingulata, Penicillium crustosum, Chaetomium globosum and Aspergillus fumigatus was investigated by studying the kinetics of the aromatic hydroxylation reaction with the formation of 4-hydroxypropranolol (4-OH-Prop). Both Prop enantiomers were consumed by the fungi in the biotransformation process, but the 4-hydroxylation reaction yielded preferentially (-)-(S)-4-OH-Prop. The quantity of metabolites biosynthesized varied slightly among the evaluated endophytic fungi. These results show that all investigated endophytic fungi could be used as biosynthetic tools in biotransformation processes to obtain the enantiomers of 4-OH-Prop.

Keywords : enantioselective biotransformation; propranolol; endophytic fungi.

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