| 中华稻蝗内黄酮组分的抗氧化活性 |
| |
| 引用本文： | 刘爱青,段玉峰,王应强.中华稻蝗内黄酮组分的抗氧化活性[J].江苏农业学报,2007,23(3):233-238. |
| |
| 作者姓名： | 刘爱青 段玉峰 王应强 |
| |
| 作者单位： | 陕西师范大学食品工程系,陕西,西安,710062 |
| |
| 摘 要： | 利用70%的乙醇提取中华稻蝗黄酮,并用乙酸乙酯和正丁醇依次进行萃取,采用DPPH自由基、超氧阴离子、羟基自由基、鳌合亚铁离子和还原力、总抗氧化的反应体系,检测了中华稻蝗组分的体外抗氧化活性,并与化学合成抗氧化剂BHT进行比较.结果表明:在所测浓度范围内,水相残留物的清除能力、总抗氧化能力和总还原能力最好;IC50值,羟基自由基(25.16±0.64) μg/ml、超氧阴离子自由基(35.06±0.86) μg/ml、DPPH为(19.56±1.24) μg/ml、脂质过氧化(43.75±0.94) μg/ml,且均强于BHT. 其它几种萃取物与BHT相当,因此,稻蝗黄酮类组分具有很好的抗氧化能力.
|
| 关 键 词： | 稻蝗黄酮类组分 清除自由基 抗氧化作用 还原力 中华稻蝗 黄酮类组分 氧化活性 Oxya chinensis Flavonoid Activity 萃取物 脂质过氧化 阴离子自由基 还原能力 氧化能力 残留物 水相 浓度范围 结果 比较 合成抗氧化剂 化学 检测 反应体系 |
| 文章编号： | 1000-4440（2007）03-0233-06 |
| 修稿时间： | 2006-06-29 |
Antioxidative Activity of Flavonoid Extracted from Oxya chinensis |
| |
| LIU Ai-qing,DUAN Yu-feng,WANG Ying-qiang.Antioxidative Activity of Flavonoid Extracted from Oxya chinensis[J].Jiangsu Journal of Agricultural Sciences,2007,23(3):233-238. |
| |
| Authors: | LIU Ai-qing DUAN Yu-feng WANG Ying-qiang |
| |
| Abstract: | Flavonoid is a kind of natural antioxidative that can prevent the oxidation of food and fat.It is safer than synthesized antioxidatives such as BHT,BHA,et al when applied in food industry.Flavonoids are rich in Oxya chinensis.Seventy percent of ethanol was used as extractant to get flavonoids out of Oxya chinensis.The flavonoids were then extracted by EtoAC and BuOH in trun from the extractions.The antioxidative activities of flavonoids were compared to BHT through the detection of radical scavenging,reduction and antioxidative actions.Flavonoids in water hangover showed better antioxidative and reduction capacities than BHT and those extracted by EtoAC,BuOH and ethanol do.All the concentrations of flavonoids in water hangover were lower than those of BHT when their scavenging rate to radicals was 50%.It was elucidated that flavonoids extracted from Oxya chinednsis could be a good antioxidant. |
| |
| Keywords: | flavonoids in Oxya chinensis free radicals scavenging antioxidation reducing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
