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Biooxidation of (+)-Catechin and (−)-Epicatechin into 3,4-Dihydroxyflavan Derivatives by the Endophytic FungusDiaporthe sp. Isolated from a Tea Plant

Hirotaka Shibuya, Andria Agusta, Kazuyoshi Ohashi, Shoji Maehara, Partomuan Simanjuntak

Author information

Hirotaka Shibuya
Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
Andria Agusta
Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
Kazuyoshi Ohashi
Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
Shoji Maehara
Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
Partomuan Simanjuntak
Research Centre for Biotechnology, Indonesian Institute of Sciences

Corresponding author

Keywords:microbial transformation,(+)-catechin,(−)-epicatechin,endophyte,Diaporthe sp.,tea plant

JOURNALFREE ACCESS

2005 Volume 53Issue 7Pages 866-867

DOIhttps://doi.org/10.1248/cpb.53.866

Details

Published: 2005Received: March 22, 2005Available on J-STAGE: July 01, 2005Accepted: April 28, 2005Advance online publication: -Revised: -

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Article overview

Abstract

The microbial transformation of (+)-catechin (1) and (−)-epicatechin (2) by endophytic fungi isolated from a tea plant was investigated. It was found that the endophytic filamentous fungusDiaporthe sp. transformed them (1, 2) into the 3,4-cis-dihydroxyflavan derivatives, (+)-(2R,3S,4S)-3,4,5,7,3′,4′-hexahydroxyflavan (3) and (−)-(2R,3R,4R)-3,4,5,7,3′,4′-hexahydroxyflavan (7), respectively, whereas (−)-catechin (ent-1) and (+)-epicatechin (ent-2) with a 2S-phenyl group resisted the biooxidation.

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