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| 银木总黄酮体外抗氧化活性研究 |
| Antioxidant Activity of Total Flavonoids of Cinnamomum Septentrionale Hand.-Mzt |
| 投稿时间：2014-09-12 修订日期：2015-01-08 |
| DOI： |
| 中文关键词: 银木 总黄酮 抗氧化 |
| 英文关键词:Cinnamomum septentrionale Hand.-Mzt Total flavonoids Antioxidant activity |
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| 中文摘要: |
| 摘 要 目的： 对银木总黄酮的体外抗氧化活性进行研究。方法: 采用铁氰化钾还原法测定其还原能力，并测定其清除DPPH自由基（DPPH·）、羟基自由基（·OH）、超氧阴离子自由基（O2-·）的能力。结果:银木总黄酮具有良好的还原力，较好地清除DPPH自由基（DPPH·）、羟基自由基（·OH）、超氧阴离子自由基（O2-·）的能力，且随着浓度逐渐增加抗氧化作用呈递增趋势， 在银木总黄酮浓度为0.15mg·mL-1时，对DPPH自由基（DPPH·）清除率高达86%、对羟基自由基（·OH）的清除率达到68%、对于超氧阴离子自由基（O2-·）的清除率可以达到59%。结论: 银木总黄酮有较好的抗氧化活性，是一种天然的抗氧化剂，值得进一步研究开发。 |
| 英文摘要: |
| ABSTRACT Objective: To investigate the antioxidant activity of the total flavonoids of Cinnamomum septentrionale Hand.-Mzt. Methods: A ferricyanide reduction method was used to study the reduction ability. The scavenging activity of the total flavonoids on DPPH· free radical (DPPH·), hydroxyl radicals (·OH) and superoxide anion free radical (O2- ·) was investigated as well. Results: Cinnamomum septentrionale Hand.-Mzt. had good reduction and scavenging activity on the free radicals in a concentration dependant manner. When the concentration of total flavonoids of Cinnamomum septentrionale Hand.-Mzt reached 0.15 mg·mL-1, 86% of DPPH free radical (DPPH·), 68% of hydroxyl radicals (·OH) and 59% of ultra oxygen anion free radical (O2- ·) were scavenged.Conclusion:Cinnamomum septentrionale Hand.-Mzt. has good antioxidant activity, and as a natural antioxidant, it is worthy of further research and development. |
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