Coulometric determination of the antioxidant capacity of tea extracts using electrogenerated bromine

被引：24

作者：

Abdullin, IF ^{[1
]}

Turova, EN ^{[1
]}

Budnikov, GK ^{[1
]}

机构：

[1] Kazan State Univ, Dept Chem, Kazan 420008, Russia

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2001年 / 56卷 / 06期

关键词：

D O I：

10.1023/A:1016636912280

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A coulometric procedure based on the reaction between aqueous extracts of tea with electrogenerated bromine compounds was proposed for the rapid estimation of the antioxidant capacity of different kinds of tea. The antioxidant properties of tea with respect to bromine are mainly due to naturally occurring flavonoids, tannins, and some vitamins. Photometric and coulometric data for black teas exhibit good correlation.

引用

页码：557 / 559

页数：3

共 15 条

[1] Abdullin IF, 1998, IND LAB+, V64, P1
[2] Berezovskii V. M, 1973, KHIMIYA VITAMINOV
[3] Antioxidant capacity of tea and common vegetables
Cao, GH
Sofic, E
Prior, RL
[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1996, 44 (11) : 3426 - 3431
[4] Black tea increases the resistance of human plasma to lipid peroxidation in vitro, but not ex vivo
Cherubini, A
Beal, MF
Frei, B
[J]. FREE RADICAL BIOLOGY AND MEDICINE, 1999, 27 (3-4) : 381 - 387
[5] GOROSHKO OA, 2000, ALL RUSS C CHEM AN S, P46
[6] KHOKHLACHEV VV, 1987, VSE CHAE
[7] KIM KR, 1999, CHEM J CHINESE U, V20, P224
[8] KUSHMANOVA OD, 1983, RUKOVODSTVO LABORATO
[9] Cancer chemoprevention by tea polyphenols through mitotic signal transduction blockade
Lin, JK
Liang, YC
Lin-Shiau, SY
[J]. BIOCHEMICAL PHARMACOLOGY, 1999, 58 (06) : 911 - 915
[10] Inhibition of N-nitrosation of secondary amines in vitro by tea extracts and catechins
Tanaka, K
Hayatsu, T
Negishi, T
Hayatsu, H
[J]. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS, 1998, 412 (01) : 91 - 98

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