EFFECTS OF INDOLE AND TRYPTOPHAN ON FURAN OXIDATION BY SINGLET OXYGEN IN MICELLAR SOLUTIONS

被引：19

作者：

MIYOSHI, N

TOMITA, G

机构：

[1] Institute of Biophysics, Faculty of Agriculture, Kyushu University, Fukuoka

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1979年 / 29卷 / 03期

关键词：

D O I：

10.1111/j.1751-1097.1979.tb07085.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Abstract— The 1,3‐diphenylisobenzofuran oxidation by singlet oxygen was investigated in aqueous dode‐cyltrimethylammonium chloride micellar solutions using pyrene as photosensitizer. It was found that indole and tryptophan markedly enhanced the furan oxidation in micellar solutions. This enhancement effect strongly depended on the ethanol content in micellar solutions; enhancement effect below about 0.3 mol fraction of ethanol and inhibition effect above this mole fraction. In the former ethanol range, a quenching of pyrene fluorescence by indole or tryptophan and a difference spectrum of furan between micellar solutions in the presence and absence of indole or tryptophan appeared strongly, but they were weakened in the latter ethanol range. The interactions between indole or tryptophan and pyrene and/or furan might be responsible for the enhancement effect observed. Discussion was made in connection with the micelle structure. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：527 / 530

页数：4

共 13 条

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