几种金属离子对贡菊花茶的抗氧化活性影响的研究

Influences of Some Metal Ions on Anti-oxidant Activities of Chrysanthemum Tea

运用邻苯三酚自氧化法、Fenton法和油脂氧化法研究几种常见金属离子对贡菊花茶的抗氧化活性的影响,为贡菊花类饮品的开发提供实验指导。结果表明加入铝离子、钙离子、锌离子、铜离子的贡菊花茶的抗超氧阴离子的活性比未加入离子的贡菊花茶的活性高,加入铁离子则下降;加入各种离子的贡菊花茶的抗羟基自由基能力都比空白组强;除铁离子外,加入各种离子的贡菊花茶的抗氧化能力比空白组强。可见铝离子、钙离子、锌离子、铜离子等金属离子对贡菊花茶的抗氧化活性呈协同作用。

Using Pyrogallol auto-oxidation method, Fenton reaction method and Oil oxidated method, influences of some kind of metal ions on anti-oxidant activities of Chrysanthemum tea are studied for developing the Chrysanthemum drinks. The result shows that the Chrysanthemum tea containing Al^3＋,Cu^2＋, Zn^2＋ or Ca^2＋ has higher superoxide radical-eliminating ability than that without the mentioned metal ions. However, addition of Fe〉 might decrease the superoxide radical-eliminating ability. The chrysanthemum tea containing these ions also showed higher scavenging capability to hydroxyl radicals. Except for Fe^3＋ -containing tea, the tea containing the other ions showed high antioxidant activities. It was concluded metal ions could enhance anti-oxidant activities of Chrysanthemum tea.