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题名: Antioxidant properties of two gallotannins isolated from the leaves of Pistacia weinmannifolia
作者: Zhao, XY; null(孙汉董); Hou, AJ; null(赵勤实); Wei, TT; Xin, WJ
刊名: BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS
关键词: Pistacia weinmannifolia ; pistafolin A ; pistafolin B ; gallotannin ; antioxidant
英文摘要: Joistacia weinmannifolia J. Poisson ex Franch (Anacardiaccae) is a shrub or arbor widely found in Yunnan province of China and its leaves are used as traditional Chinese medicine by herbalists. The leaves of R weinmannifolia are rich in phenolic compounds, among which two novel gallotannins, Pistafolin A and Pistafolin B, are identified. In the present investigation, the antioxidant efficiency of Pistafolin A and Pistafolin B in preventing lipid, protein and DNA from reactive oxygen species-mediated damage was studied. Both Pistafolin A and Pistafolin B inhibited the peroxyl-radical induced lipid peroxidation Of L-alpha-phosphatidylcholine liposomes dose-dependently and prevented the bovine serum albumin from peroxyl-induced oxidative damage. Pistafolin A and Pistafolin B also inhibited copper (II)-1,10-phenanthroline complex-induced DNA oxidative damage. Both Pistafolin A and Pistafolin B scavenged the hydrophilic 2,2 '-azinobis(3-ethylbenzothiozoline-6-sulphonic acid) diammonium salt-free radicals and the hydrophobic 1,1-dipheny-2-picrylhydrazyl radicals effectively, suggesting they may act as hydrogen donating antioxidants. The protective effects of the two gallotannins against oxidative damage of biomacromolecules were due to their strong free radical scavenging ability. Pistafolin A with three galloyl moieties showed stronger antioxidant ability than Pistafolin B with two galloyl moieties. (c) 2005 Elsevier B.V. All rights reserved.
出版日期: 2005-08-30
卷号: 1725, 期号:1, 页码:103-110
DOI标识: 10.1016/j.bbagen.2005.04.015
语种: 英语
收录类别: SCI
学科分类: Biochemistry & Molecular Biology; Biophysics
ISSN号: 0304-4165
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/4162
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Biophys, Ctr Struct & Mol Biol, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zhao, XY; Sun, HD; Hou, AJ; Zhao, QS; Wei, TT; Xin, WJ.Antioxidant properties of two gallotannins isolated from the leaves of Pistacia weinmannifolia,BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS,2005,1725(1):103-110
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