作者:Jarosław Popłoński、Sandra Sordon、Tomasz Tronina、Agnieszka Bartmańska、Ewa Huszcza
DOI:10.1016/j.molcatb.2015.04.007
日期:2015.7
Naphthoflavones (benzoflavones) are synthetic flavonoids commonly used in drug metabolism studies as selective activators or inhibitors of cytochrome P-450 enzymes. Nowadays they are also used as a component of food supplements for body builders. There is no data regarding naphthoflavone microbial metabolism. In the present studies sixty-three fungal strains have been screened for their ability to transform alpha-naphthoflavone (7,8-benzoflavone) or beta-naphthoflavone (5,6-benzoflavone). Five strains belonging to the genera Penicillium, Cladosporium, Aspergillus and Verticillium transformed alpha-naphthoflavone and beta-naphthoflavone to the corresponding 4'-hydroxy derivatives. These selected fungi have been used in a further study on biotransformation of naphthoflavones with a differently substituted B-ring. Only 4'-methoxy derivatives have been transformed to the related 4'-hydroxy products. Selected strains are good biocatalysts to obtain 4'-hydroxy naphthoflavones in the one step reaction. (C) 2015 Elsevier B.V. All rights reserved.