| 大豆异黄酮的抗氧化活性 |
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| 引用本文： | 井乐刚,路芳,张永忠.大豆异黄酮的抗氧化活性[J].食品与发酵工业,2004,30(2):62-65. |
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| 作者姓名： | 井乐刚 路芳 张永忠 |
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| 作者单位： | 1. 哈尔滨师范大学阿城学院生物系,阿城,150301
2. 东北农业大学理学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省十五科技攻关资助项目 (No.GA0 1B4 0 4— 0 8) |
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| 摘 要： | 从大豆乳清中提取出大豆异黄酮 ,对其抗氧化活性进行了研究。采用α 脱氧核糖氧化法和连苯三酚氧化法 ,分别研究了不同浓度的大豆异黄酮对羟自由基·OH和超氧自由基O- 2 ·的清除效果。结果表明 ,随着大豆异黄酮浓度的增大 ,其对羟自由基·OH的清除能力大大增强 ;而对超氧自由基O- 2 ·的清除能力却呈下降趋势。试验结果还表明 ,随着时间的延长 ,不同浓度的大豆异黄酮对超氧自由基O- 2 ·的清除能力都迅速减弱。
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| 关 键 词： | 大豆异黄酮 抗氧化活性 自由基 |
| 修稿时间： | 2003年12月17 |
Study on Antioxygenic Activity of Soybean Isoflavones |
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| Jing Legang,Lu Fang,Zhang Yongzhong.Study on Antioxygenic Activity of Soybean Isoflavones[J].Food and Fermentation Industries,2004,30(2):62-65. |
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| Authors: | Jing Legang Lu Fang Zhang Yongzhong |
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| Affiliation: | Jing Legang 1 Lu Fang 1 Zhang Yongzhong 2 1 |
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| Abstract: | Antioxygenic activity of soybean isoflavones extracted from soybean whey was researched in this paper.Using alpha deoxyribose oxidation method and pyrogallol autoxidationmethod,experiments of different concentrations of soybean isoflavones scaverging hydroxy radical and superoxide radical were respectively made.The results showed that with the increase of conentration,the ability of soybean isoflavones to scavenge hydroxy radical greatly increased,but the ability of soybean isoflavones to scavenge superoxide radical decreased.The results also showed that with the prolongation of the time,the ability of different concentrations of soybean isoflavones to scavenge superoxide radical quickly decreased. |
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| Keywords: | soybean isoflavones antioxygenic activity free radical |
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