| 桃花中绿原酸抗氧化活性的研究 |
| 投稿时间：2018-01-31 点此下载全文
|
| 引用本文：梁萱,李嘉会,梁永锋.桃花中绿原酸抗氧化活性的研究[J].中国现代中药,2018,20(6):697-701 |
| DOI： |
| 摘要点击次数: 727 |
| 全文下载次数: 427 |
|
|
| 基金项目:宁夏回族自治区研究生教育创新计划项目（YXW2017019） |
|
| 中文摘要:以桃花提取物为试材，维生素C和绿原酸标准品为对照品，采用K3\[Fe(CN)6\]测定其还原能力，D-脱氧核糖-铁体系法、二苯代苦味酰基自由基（DPPH·）和邻苯三酚自氧化法测定桃花提取物中绿原酸的抗氧化活性。结果表明：桃花提取物具有较强的还原性，其抗氧化活性与绿原酸含量密切相关。其中桃花提取物抗羟基自由基活性高于Vc，浓度为200 μ·mL-1时，可达到66.42%；抗超氧阴离子自由基活性略低于Vc，浓度为200 μg·mL-1时，抗氧化活性为95.78%；抗DPPH·自由基的活性比Vc略高，当浓度为200 μg·mL-1时，抗氧化活性为82.12%。 该研究说明，桃花提取物的还原性和抗氧化活性与绿原酸具有良好的效量关系，桃花中的抗氧化活性物质主要是绿原酸。 |
| 中文关键词:桃花提取物 抗氧化活性 绿原酸 相关性 |
| |
| Antioxidant Activity of Chlorogenic Acid Extracted from Peach Blossom |
|
|
| Abstract:Taking Peach blossom as test material，antioxidant activity of chlorgenic acid extracted from peach blossom was measured by D-deoxyribose-iron system method along with 2，2-diphenyl-1-picrylhydrazyl pyrogallol autoxidation method，while vitamin C and chlorgenic acid were used as reference substance and reduction ability of the extract was measured by using K3\[Fe(CN)6\].The results showed that peach blossom extract had strong reducibility，and its antioxidant activity was closely related to chlorgenic acid content.The extract had higher anti-hydroxyl and anti-DPPHo activity but lower anti-superoxide anion activity than vitamin C.Its reducibility with concentration of 200 μg·mL-1 for hydroxyl was as high as 66.42%，and antioxidant activity was 95.78% and 82.12% for superoxide anion and DPPHo，respectively.This study showed that the main extract of peach blossom was chlorgenic acid and its concentration largely determine reductive and antioxidant activities for the extract. |
| keywords:Peach blossom extraction antioxidant activity chlorogenic acid relevance |
|
查看全文
查看/发表评论 下载PDF阅读器 |
