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| Scavenging Effects of Sandy-tea Ethanol Extract on Super Oxide Anion and Hydroxyl Radical |
| AO Chun |
| (College of Food Science, Southwest University, Chongqing 400715, China) |
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Abstract Abstract: Objective: This paper studies on the scavenging effects of Hawk-tea-Sandy-tea ethanol extract on Super oxide Anion and Hydroxyl Radical. Methods: For the materials with Hawk-tea-Sandy-tea, then using pyrogallol method to measure super oxide anion radical (O2?－), orthophenanthroline reaction method to measure hydroxyl radical(·OH)by the different solvent concentration extracts. Results: The rate of 40%Ethanol extract is the highest. The clear trend and active of Super oxide anion is different. The scavenge ability of different solvent concentration extract with ·-OH is Ethanol extract＞20%Ethanol extract＞80%Ethanol extract＞60%Ethanol extract＞40%Ethanol extract. Conclusion: Either Super oxide anion or Hydroxyl radicals will be scavenged very well by any concentration ethanol extract. Compared with various concentrations, 20%Ethanol extract is better on scavenging Super oxide anion and Ethanol extract is better on scavenging Hydroxyl radical.
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2010, Vol. 24 
