| Phenolic constituents from Rhopalocnemis phalloides with DPPH radical scavenging activity | |
She, Gai-Mei1,2; Hu, Jin-Bo1; Zhang, Ying-Jun1 ; Yang, Chong-Ren1
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| 2010 | |
| 发表期刊 | PHARMACEUTICAL BIOLOGY
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| 卷号 | 48期号:1页码:116-119 |
| 摘要 | The 80% aqueous acetone extract of the whole plant of Rhopalocnemis phalloides Jungh. (Balanophoraceae) showed obvious radical scavenging activity (SC(50) = 32.1 mu g/mL) on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assay. Further chemical investigation of the extract led to the isolation of 12 phenolic compounds (1-12). Among these, bis-6,8'-catechinylmethane (2), a flavan-3-ol dimer, was first isolated as a natural product from Rhopalocnemis phalloides. The full NMR assignments of bis-catechinylmethanes (1 and 2) are reported for the first time, on the basis of detailed spectroscopic analysis. The DPPH assay showed that flavan-3-ol dimers (1-3) had remarkable free radical scavenging activity, while flavonoid aglycones (4 and 9) presented stronger activities than those of their glycosides (5-8 and 10). |
| 关键词 | Balanophoraceae Rhopalocnemis Phalloides Flavan-3-ol Dimer Dpph Radical |
| 学科领域 | Plant Sciences ; Medical Laboratory Technology ; Pharmacology & Pharmacy |
| DOI | 10.3109/13880200903032757 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273992300018 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/14473 |
| 专题 | 植物化学与西部植物资源持续利用国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China 2.Beijing Univ Chinese Med, Sch Chinese Pharm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | She, Gai-Mei,Hu, Jin-Bo,Zhang, Ying-Jun,et al. Phenolic constituents from Rhopalocnemis phalloides with DPPH radical scavenging activity[J]. PHARMACEUTICAL BIOLOGY,2010,48(1):116-119. |
| APA | She, Gai-Mei,Hu, Jin-Bo,Zhang, Ying-Jun,&Yang, Chong-Ren.(2010).Phenolic constituents from Rhopalocnemis phalloides with DPPH radical scavenging activity.PHARMACEUTICAL BIOLOGY,48(1),116-119. |
| MLA | She, Gai-Mei,et al."Phenolic constituents from Rhopalocnemis phalloides with DPPH radical scavenging activity".PHARMACEUTICAL BIOLOGY 48.1(2010):116-119. |
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