Biotransformation of chalcones by the endophytic fungus Aspergillus flavus isolated from Paspalum maritimum trin

Journal of the Brazilian Chemical Society

Marivaldo J. C Corrêa²  Fátima M Nunes²  Heriberto R Bitencourt²  Fábio C Borges²  Giselle M. S. P Guilhon²  Mara S. P Arruda²  Andrey M. R Marinho²  Alberdan S Santos²  Cláudio N Alves²  Davi S. B Brasil¹  Lourivaldo S Santos² 

[1] ,Universidade Federal do Pará Instituto de Tecnologia Instituto de Ciências Exatas e Naturais Faculdade de Engenharia QuímicaBelém PA ,Brazil

关键词: biotransformations;    Aspergillus flavus;    Paspalum maritimum;    chalcones;    dihydrochalcones;   

DOI  :  10.1590/S0103-50532011000700019

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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