Biotransformation of chalcones by the endophytic fungus Aspergillus flavus isolated from Paspalum maritimum trin
作者:Marivaldo J. C Corrêa、Fátima M Nunes、Heriberto R Bitencourt、Fábio C Borges、Giselle M. S. P Guilhon、Mara S. P Arruda、Andrey M. R Marinho、Alberdan S Santos、Cláudio N Alves、Davi S. B Brasil、Lourivaldo S Santos
DOI:10.1590/s0103-50532011000700019
日期:——
The fungus Aspergillus flavus isolated as endophytic of the plant Paspalum maritimum Trin. was evaluated for its potential application in biotransformation reactions. The compounds chalcone (1), 3,4,5-trimethoxychalcone (2) and 2,3,4,4'-tetramethoxychalcone (3) were biotransformed, respectively, in dihydrochalcone (4), 3,4,5-trimethoxydihydrochalcone (5) and 2,3,4,4'-tetramethoxydihydrochalcone (6). The structures were elucidated by spectroscopic methods including 1D and 2D NMR techniques, and MS analysis. The dihydrochalcones 5 and 6 are new compounds.