| 续断清除DPPH·自由基的活性 |
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| 引用本文： | 高振,邹坤,廖全斌. 续断清除DPPH·自由基的活性[J]. 三峡大学学报(自然科学版), 2002, 24(4): 366-368 |
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| 作者姓名： | 高振 邹坤 廖全斌 |
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| 作者单位： | 三峡大学化学与生命科学学院,湖北,宜昌,443003 |
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| 摘 要： | 续断(Dipsacusasper Wall.)经95％乙醇冷浸提取,AB-8大孔吸附树脂柱分离,水-乙醇梯度洗脱,得到几个组份.利用紫外分光光度计检测样品对DPPH·自由基的清除活性,结果表明粗提物以及65％、50％、35％的乙醇洗脱液都具有显著的自由基清除作用,其中65％洗脱液的活性最强.
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| 关 键 词： | 续断 DPPH· 自由基 抗氧化剂 |
| 文章编号： | 1007-7081(2002)04-0366-03 |
| 修稿时间： | 2002-04-05 |
Scavenging Effects of Dipsacus asper Wall.on DPPH·Radical Group |
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| Gao Zhen Zou Kun Liao Quanbin. Scavenging Effects of Dipsacus asper Wall.on DPPH·Radical Group[J]. Journal of China Three Gorges University(Natural Sciences), 2002, 24(4): 366-368 |
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| Authors: | Gao Zhen Zou Kun Liao Quanbin |
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| Abstract: | Powdered stems of D. asper Wall, were extracted with 95% ethanol at room temperature. The crude extracts were chromatographied over AB-8 resin column in elution with gradient aqueous ethanol solution. The crude extracts and the eluents were subjected to antioxidant activity evaluation by means of scavenging DPPH radical group. The result showed that crude extracts and 65%, 50%, 35% ethanol eluents displayed marked radical-scavenging effects;furthermore, 65% eluent demonstrated best activity among the samples in this experiment. |
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| Keywords: | DPPH@ |
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