Issue 15, 2000
From the journal:

Chemical Communications

Theanaphthoquinone, a novel pigment oxidatively derived from theaflavin during tea-fermentation

Takashi Tanaka,a   Yayoi Betsumiya,a   Chie Minea  and  Isao Kouno*a  

* Corresponding authors

a School of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan.
E-mail: ikouno@net.nagasaki-u.ac.jp

Abstract

Treatment of a mixture of epicatechin and epigallocatechin with extracts of fresh tea leaf or banana fruit generated a new pigment named theanaphthoquinone, which has a 1,2-naphthoquinone moiety oxidatively derived from the benzotropolone unit of theaflavin.

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Article information

DOI
https://doi.org/10.1039/B003510F
Article type
Communication
Submitted
02 May 2000
Accepted
15 Jun 2000
First published
04 Jul 2000

Chem. Commun., 2000, 1365-1366

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Theanaphthoquinone, a novel pigment oxidatively derived from theaflavin during tea-fermentation

T. Tanaka, Y. Betsumiya, C. Mine and I. Kouno, Chem. Commun., 2000, 1365 DOI: 10.1039/B003510F

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