Biotransformation of isoflavones by  Aspergillus niger  as biocatalyst | Zendy

Miyazawa Mitsuo | Zendy; Takahashi Koji | Zendy; Araki Hideo | Zendy

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Biotransformation of isoflavones by Aspergillus niger as biocatalyst

Author(s) -

Miyazawa Mitsuo,

Takahashi Koji,

Araki Hideo

Publication year - 2006

Publication title -

journal of chemical technology and biotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.64

H-Index - 117

eISSN - 1097-4660

pISSN - 0268-2575

DOI - 10.1002/jctb.1461

Subject(s) - aspergillus niger , biotransformation , isoflavones , regioselectivity , biocatalysis , chemistry , aspergillus , stereochemistry , organic chemistry , enzyme , biochemistry , botany , biology , catalysis , reaction mechanism

Biotransformation of the isoflavones, 6,7,4′‐trimethoxyisoflavone ( 1 ) and 5,7,4′‐trimethoxyisoflavone ( 2 ) by Aspergillus niger was investigated. Compound 1 was transformed to 4′‐hydroxy‐6,7‐dimethoxyisoflavone ( 3 ) and 2 to 4′‐hydroxy‐5,7‐dimethoxyisoflavone ( 4 ). This suggested that 1 and 2 were demethylated at the C‐4′ position with regioselectivity by Aspergillus niger . Copyright © 2006 Society of Chemical Industry

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