| 顺磁共振测定姜油树脂的DPPH 自由基清除率 |
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| 引用本文： | 葛庆丰,宋明军,顾 林.顺磁共振测定姜油树脂的DPPH 自由基清除率[J].食品科学,2010,31(15):121-125. |
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| 作者姓名： | 葛庆丰 宋明军 顾 林 |
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| 作者单位： | 扬州大学食品科学与工程学院 |
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| 摘 要： | 应用电子顺磁共振(ESR)方法测定姜油树脂对DPPH 自由基的清除效果，结果表明：当姜油树脂中姜辣素与DPPH 自由基的物质的量比达到2.0 时，5min 后就检测不出DPPH 自由基；姜辣素与DPPH 自由基物质的量比为0.25 时，可以清除50% 的DPPH 自由基。
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| 关 键 词： | 电子顺磁共振 姜油树脂 DPPH 自由基清除率 |
| 收稿时间： | 2010-04-20 |
Using ESR for Measuring DPPH Free Radical Scavenging Activity of Gingerol Oleoresin |
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| GE Qing-feng,SONG Ming-jun,GU Lin.Using ESR for Measuring DPPH Free Radical Scavenging Activity of Gingerol Oleoresin[J].Food Science,2010,31(15):121-125. |
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| Authors: | GE Qing-feng SONG Ming-jun GU Lin |
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| Affiliation: | School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China |
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| Abstract: | This study investigated the use of ESR for measuring the scavenging effect of gingerol oleoresin on DPPH free radicals. DPPH free radicals could not be detected after 5 min exposure to half molar amount of gingerol, an antioxidant component contained in gingerol oleoresin. The percentage of scavenged DPPH free radicals was 50% when the molar ratio of gingerol to DPPH free radicals was 1:4. |
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| Keywords: | ESR ginger oleoresin scavenging rate of DPPH free radicals |
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