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题名: Antioxidant phenolic constituents from Fagopyrum dibotrys
作者: Wang, KJ; null(张颖君); Yang, CR
刊名: JOURNAL OF ETHNOPHARMACOLOGY
关键词: Fagopyrum dibotrys ; antioxidant phenolics ; diboside A ; flavonol glycoside
英文摘要: Fagopyrum dibotrys (D. Don.) Hara. is an erect perennial Polygonaceous herb. In China, its rhizome was used as folk medicine for the treatment of lung diseases, dysentery and rheumatism. The crude aqueous acetone extract from the rhizomes of this plant exhibited high antioxidant activity (SC50 = 10.95 mu g/mL) in 1,1-diphenyl-2-picryldydrazyl (DPPH) radical scavenging assay. Detailed chemical investigation on the extract led to the isolation of two new phenols (1 and 2), together with 14 known antioxidant phenolic compounds (3-16). Their structures were determined by detailed spectroscopic analysis. The two new compounds were characterized as 3-methyl-gossypetin 8-O-beta-D-glucopyranoside (1) and 1,3,6'-tri-p-coumaroyl-6-feruloyl sucrose (diboside A, 2). The radical scavenging activity of all the isolated compounds was also described. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
出版日期: 2005-06-03
卷号: 99, 期号:2, 页码:259-264
语种: 英语
收录类别: SCI
学科分类: Plant Sciences; Chemistry, Medicinal; Integrative & Complementary Medicine; Pharmacology & Pharmacy
ISSN号: 0378-8741
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/4734
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, State Key Lab Phytochem & Plant Resources W China, Kunming Inst Bot, Kunming 650204, Peoples R China

Recommended Citation:
Wang, KJ; Zhang, YJ; Yang, CR.Antioxidant phenolic constituents from Fagopyrum dibotrys,JOURNAL OF ETHNOPHARMACOLOGY,2005,99(2):259-264
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