| 火龙果花中多酚类化合物抗氧化活性研究 |
| |
| 引用本文： | 李国胜,张伟敏.火龙果花中多酚类化合物抗氧化活性研究[J].热带农业科学,2016(2):5-10. |
| |
| 作者姓名： | 李国胜 张伟敏 |
| |
| 作者单位： | 海南大学食品学院 海南海口 570228 |
| |
| 基金项目： | 海南省自然科学基金(No.314087)。 |
| |
| 摘 要： | 对火龙果花中多酚类化合物抗氧化活性进行研究。采用抗氧化能力的体外实验方法,研究火龙果花中多酚类化合物的还原能力、清除·OH、O2-、DPPH·和ABTS·四种自由基的能力,以评价其抗氧化性,并以BHT作为阳性对照。结果表明,火龙果花中多酚类化合物抗氧化能力与浓度(0.4~0.8 mg/m L)呈量效关系。虽总体抗氧化活性较弱于BHT,但总体趋势与BHT相同,在浓度为0.7 mg/m L时,其羟自由基清除活性甚至略高于对比溶液。因此,火龙果花中多酚类化合物具有较好的抗氧化活性,可进一步研究开发为抗氧化功能性食品。
|
| 关 键 词： | 火龙果花 多酚类化合物 抗氧化活性 自由基 还原能力 |
Antioxidant Activity of Pitaya Flower Polyphenol Compounds |
| |
| Abstract: | The pitaya flower polyphenol compounds in antioxidant activity were studied. Using antioxidant activity in vitro methods, research the pitaya flower polyphenol compounds in reducing power, scavenging·OH, O2-, DPPH, ABTS·four kinds of free radical ability to evaluate its antioxidant and BHT as the positive control.The results showed that pitaya flower polyphenol compounds in antioxidant capacity and concentration (0.4~08 mg/mL) assumes the concentration-response relationship. Although the overall antioxidant activity is less than BHT, but the overall trend is the same as BHT, at the concentration is 0.7 mg/mL, the scavenging hydroxyl radical scavenging activity and even slightly higher than the contrast solution. Therefore, pitaya flower polyphenol compounds has good antioxidant activity, could be further studied and developed for antioxidant functional food. |
| |
| Keywords: | pitaya flower polyphenols antioxidant activity free radicals reducing power |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
