| 紫叶李提取物的抗氧化活性及稳定性研究 |
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| 引用本文： | 胡迎芬,孟洁,胡博路.紫叶李提取物的抗氧化活性及稳定性研究[J].食品科学,2002,23(8):274-276. |
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| 作者姓名： | 胡迎芬 孟洁 胡博路 |
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| 作者单位： | 青岛大学理工学院化学系 |
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| 摘 要： | 用30%乙醇提取紫叶李中的抗氧化物质,用化学发光法测定其抗氧化活性,并研究了光、热、pH等因素对抗氧化物质的影响。结果表明:紫叶李提取物对碱性连苯三酚体系产生的超氧阴离子自由基(O-2•)以及母体系产生的羟基自由基(•OH)有很好的清除作用,且耐热、耐光性好,在酸性介质中可稳定存在。
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| 关 键 词： | 紫叶李 抗氧化活性 稳定性 |
Study on the Antioxidative Activities and Stabilities ofPranus Cerasifera Ehrh Cv. Atropurpurca Extracts |
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| HU Ying-Fen,MENG Jie,HU Bo-Lu.Study on the Antioxidative Activities and Stabilities ofPranus Cerasifera Ehrh Cv. Atropurpurca Extracts[J].Food Science,2002,23(8):274-276. |
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| Authors: | HU Ying-Fen MENG Jie HU Bo-Lu |
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| Abstract: | Antioxidative substances of Pranus Cerasifera Ehrh Cv.Atropurpurca were extracted with 30% ethanol and theirantioxidative activities were essayed by Chemiluminescence. The effects of light, heat and pH on the stabilities of theseantioxidative substances were also studied . It was found that the extracts of Pranus Cerasifera Ehrh Cv.Atropurpurcashowed strong scavenging effects on the superoxidized anionic radical(O2-•)produced from alkaline hemimellitic acid systemand alsoen hydroxyl radical (•OH) produced by Vc-Cu-barm-H2O2 system, The estracts were resistant to heat and light andcould exist stably in acidic medium. |
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| Keywords: | Pranus Cerasifera Ehrh Cv Atropurpurca Antioxidatibe actibity Stability |
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