Analysis of the stable free radical scavenging capability of artificial polyphenol mixtures and plant extracts by capillary electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometry

被引：41

作者：

Helmja, Kati ^{[1
]}

Vaher, Merike ^{[1
]}

Puessa, Tonu ^{[2
]}

Kaljurand, Mihkel ^{[1
]}

机构：

[1] Tallinn Univ Technol, Fac Sci, Dept Chem, EE-12618 Tallinn, Estonia

[2] Estonian Univ Life Sci, Dept Food Sci & Hyg, EE-51014 Tartu, Estonia

来源：

JOURNAL OF CHROMATOGRAPHY A | 2009年 / 1216卷 / 12期

关键词：

Antioxidative capability; Free radical scavenging; Capillary electrophoresis; LC-DAD-MS/MS; EGGPLANT SOLANUM-MELONGENA; ANTIOXIDANT ACTIVITY; PHENOLIC-COMPOUNDS; CAPACITY; SEPARATION; NASUNIN; FOODS; IDENTIFICATION; ANTHOCYANIN; VEGETABLES;

D O I：

10.1016/j.chroma.2009.01.040

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The oxidation process of phenolic compounds of an artificial mixture consisting of six polyphenols and the extract of eggplant (Solanum melongena) skin was monitored by using capillary zone electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometry. The methods developed enabled simultaneous evaluation of the antioxidative capability of each compound. The above oxidation process was carried out using two radicals, viz. the 2.2-diphenyl-1-picrylhydrazyl and hydroxyl radicals generated via the Fenton reaction. The radical scavenging effects of artificial and natural polyphenol mixtures were compared. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：2417 / 2423

页数：7

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