Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/2574
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Type: Artigo de Periódico
Issue Date: Jul-2011
Authors: CORRÊA, Marivaldo José Costa
NUNES, Fátima Miranda
BITENCOURT, Heriberto Rodrigues
BORGES, Fábio Cardoso
GUILHON, Giselle Maria Skelding Pinheiro
ARRUDA, Mara Silvia Pinheiro
MARINHO, Andrey Moacir do Rosário
SANTOS, Alberdan Silva
ALVES, Claudio Nahum
BRASIL, Davi do Socorro Barros
SANTOS, Lourivaldo da Silva
Title: Biotransformation of chalcones by the endophytic fungus Aspergillus flavus isolated from Paspalum maritimum trin
Citation: CORRÊA, Marivaldo J. C. et al. Biotransformation of chalcones by the endophytic fungus Aspergillus flavus isolated from Paspalum maritimum trin. Journal of the Brazilian Chemical Society, São Paulo, v. 22, n. 7, p. 1333-1338, jul. 2011. Disponível em: <http://www.scielo.br/pdf/jbchs/v22n7/v22n7a19.pdf>. Acesso em: 27 mar. 2012. <http://dx.doi.org/10.1590/S0103-50532011000700019>.
Resumo: O fungo Aspergillus flavus isolado como endofítico da planta Paspalum maritimum Trin. foi avaliado quanto ao seu potencial de aplicação em reações de biotransformações. Os compostos chalcona (1), 3,4,5-trimetoxichalcona (2) e 2,3,4,4'-tetrametoxichalcona (3) foram biotransformados, respectivamente, na diidrochalcona (4), 3,4,5-trimetoxidiidrochalcona (5) e 2,3,4,4'-tetrametoxidiidrochalcona (6). As estruturas destes compostos foram determinadas por análises de RMN uni e bidimensionais e por espectrometria de massas. As diidrochalconas 5 e 6 são substâncias inéditas.
Abstract: 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.
Keywords: Biotransformação
Aspergillus flavus
Fungos
Paspalum maritimum
Reação química
ISSN: 0103-5053
Appears in Collections:Artigos Científicos - FAQUI/ICEN
Artigos Científicos - FEQ/ITEC

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